Journal articles on the topic 'Guppy'
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Aryoputro, Vies Mufid, and Edward Danakusumah. "Efektifitas Perendaman Induk Ikan Guppy (Poecilia reticulata) Bunting Dengan Berbagai Bahan, Ekstrak Cabe Jawa (Piper retrofractum Vahl) Larutan 17a Metiltestosteron dan Purwoceng." Jurnal Ilmiah Satya Minabahari 4, no. 1 (August 31, 2018): 1–15. http://dx.doi.org/10.53676/jism.v4i1.54.
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Penelitian ini bertujuan untuk menguji efektifitas penggunaan ekstrak cabe jawa,-metiltestosteron17α dan purwoceng dengan teknik perendaman induk guppy bunting terhadap jantanisasi.Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan bahan perendaman induk bunting untuk jantanisasi ikan guppy menggunakan ekstrak cabe-metiltestosteronjawa,dan 17α ekstrak purwoceng yang dibandingkan dengan kontrol (tanpa bahan), masing-masing perlakuan diulangi sebanyak 3 kali ulangan.Hasil penelitian menunjukkan bahwa bahan yang paling efektif dalam perlakuan perendaman induk ikan guppy terhadap persentase ikan- gupp metiltestosteron dengan hasil tertinggi 90%, sedangkan untuk bahan alternatif yang ramah lingkungan dapat menggunakan ekstrak purwoceng menghasilkan ikan guppy jantan tertinggi 87%. Jumlah ikan jantan tersebut lebih tinggi dibandingkan rata –rata ikan guppy kontrol sebesar 77,1%.
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Syarif, Ahmad Fahrul, Dendy Winardi, and Robin Robin. "MASKULINISASI IKAN GUPPY (Poecilia reticulata) MENGGUNAKAN EKSTRAK DAUN MENSIRAK (Ilex cymosa) MELALUI PERENDAMAN INDUK BUNTING." Jurnal Perikanan Unram 11, no. 2 (November 30, 2021): 232–42. http://dx.doi.org/10.29303/jp.v11i2.259.
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Komoditas ikan hias air tawar banyak diminati masyarakat di indonesia salah satunya yaitu ikan guppy (Poecilia reticulata). Ikan guppy banyak digemari karena mudah dipelihara dan memiliki variasi warna yang indah terutama pada ikan guppy jantan. Kendala dalam budidaya ikan guppy adalah jumlah anakan jantan yang dihasilkan biasanya lebih rendah dari jumlah betina. Penggunaan ekstrak daun mensirak diduga dapat digunakan dalam proses maskulinisasi ikan guppy. penelitian ini dilakukan untuk mengetahui dosis terbaik dari pemberian ekstrak daun mensirak terhadap peningkatkan nisbah kelamin jantan pada ikan guppy. Metode yang digunakan dalam penelitian adalah metode eksperimen dengan menggunakan Rancangan Acak Lengkap (RAL) tunggal dengan 5 taraf perlakuan yang terdiri dari 3 ulangan. Dosis perendaman indukan ikan guppy betina yang digunakan P1 (2 mg/L), P2 (4 mg/L), P3 (6 mg/L), kontrol positif 17?-Metiltestosteron (2 mg/L) dan kontrol negatif (0 mg/L). Hasil penelitian menunjukan penggunaan ekstrak daun mensirak perendaman induk bunting berpengaruh nyata terhadap persentase kelamin jantan dengan konsentrasi terbaik yaitu 2 mg/L (45.93±27.19%). Maskulinisasi ikan guppy dengan menggunakan ekstrak daun mensirak terhadap perendaman induk ikan guppy bunting berpengaruh nyata terhadap persentase kelamin jantan. Dosis terbaik pada perendaman induk ikan guppy bunting dengan menggunakan ekstrak daun mensirak didapatkan pada perlakuan P1 dengan dosis 2mg/L yaitu menghasilkan persentase kelamin jantan sebesar 45,93±27,19%.
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Maulana, Andriansyah Sulistyo, and Khusnul Fikriyah. "PENERAPAN ETIKA BISNIS ISLAM PADA PEMBUDIDAYA IKAN GUPPY (STUDI PADA GUPPYJUNIOR SURABAYA)." Jurnal Ekonomika dan Bisnis Islam 4, no. 3 (January 19, 2022): 41–52. http://dx.doi.org/10.26740/jekobi.v4n3.p41-52.
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Abstract The high demand for ornamental fish like Guppy, both on local and international market, has increased the opportunity for Guppy fish cultivation. However, there are many people who lacks basic knowledge and technical support to cultivating Guppy. As a result, many fish that has been cultivated did not meet the standards on the market. The purpose of this research was to describe Islamic Business Ethics Application on Guppy's Farmers in Guppy Junior Surabaya. The researchers used descriptive-qualitative research methods to describe how was the cultivation process of Guppy fish by Guppy Junior Surabaya and to know whether the method is appropriate with Islamic Business Ethics. As for the method to collect data is using interviews, conducted on main and supporting sources, and followed by documentations and direct observation to obtain data. The results of this study state that in the process of guppy fish cultivation carried out by guppy junior surabaya, they are able to apply the principles of Islamic business ethics which include the principles of unity, balance, free will, responsibility, and honesty/kindness
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Pratama, Dimas Rizki, Henni Wijayanti, and Herman Yulianto. "PENGARUH WARNA WADAH PEMELIHARAAN TERHADAP PENINGKATAN INTENSITAS WARNA IKAN GUPPY (Poecilia reticulata)." e-Jurnal Rekayasa dan Teknologi Budidaya Perairan 7, no. 1 (December 11, 2018): 775. http://dx.doi.org/10.23960/jrtbp.v7i1.p775-782.
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Guppy is one of the most popular ornamental fish. In some ornamental fish, colour of aquarium can enhance the fish colour intensity. The research aims to determine the effect of different aquarium colour on Guppy colour intensity which maintenance on semi outdoor. The research was used completely Randomized Design (CRD) with 4 treatments and 3 replications (maintenance guppy in colourless aquarium, black coloured aquarium, yellow coloured aquarium, silver coloured aquarium). The Guppy fish used is 60 days old that kept on aquarium 30 cm x 20 cm x 30 cm and the water volume is 4 liters/aquarium. Research was conducted for 40 days, fish amount is 8 fish/aquarium. Colour intensity data were analyzed by using ANOVA and the significantly different results followed by a further test of Least Significant Difference (LSD). Observed parameters were the colour intensity, pH, and temperature. The results showed that maintenance Guppy fish under different colour of aquarium gave the effect on Guppy colour intensity, the best effecton colour intensity Guppy fish show at the colourless aquarium.
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Akhsan, Akhsan, Muhammad Heril, and Wahyullah Sapan. "MENINGKATKAN BAKAT DAN MINAT ESTETIKA MASYARAKAT DALAM BIDANG KETERAMPILAN DI MASA PANDEMI COVID-19." Ekalaya: Jurnal Pengabdian Kepada Masyarakat Indonesia 1, no. 1 (January 30, 2022): 1–5. http://dx.doi.org/10.57254/eka.v1i1.1.
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One of the problems that exist in Lunjen village is the lack of aesthetic and aesthetic values at the MIS GUPPY RUMBIA school. One of the programs implemented in Lunjen village is school painting which is one of the areas of skill. The objectives of holding a painting work program at the MIS GUPPI RUMBIA school are: 1) to beautify the school environment. 2) build interest in attracting interest for children to go to school at MIS GUPPI RUMBIA. Community service in this article. The result of this work program is an increase in the aesthetic value of the school from the movement to care for the school environment as well as increasing interest in enrolling in schools, especially at MIS GUPPI RUMBIA
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Hidayah, Cut Qanita, Sri Hastuti, Diana Rachmawati, Subandiyono Subandiyono, and Dewi Nurhayati. "Pengaruh tepung bunga marigold (Tagetes erecta) pada pakan buatan terhadap kecerahan warna benih ikan guppy (Poecillia reticulata)." Sains Akuakultur Tropis 6, no. 1 (March 15, 2022): 44–53. http://dx.doi.org/10.14710/sat.v6i1.5644.
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ABSTRAK Ikan guppy (P. reticulata) merupakan salah satu ikan hias air tawar yang banyak diminati karena variasi warna dan corak siripnya yang beragam. Warna ikan hias dipengaruhi oleh sel pigmen pada tubuh. Pigmen tersebut dihasilkan dari penambahan karotenoid pada pakan. Salah satu bahan penghasil karotenoid adalah tepung bunga marigold. Penelitian ini bertujuan untuk mengkaji pengaruh dan mengetahui dosis terbaik tepung bunga marigold dalam pakan buatan terhadap peningkatan kecerahan warna ikan guppy. Variabel yang diamati antara lain bobot mutlak, rasio konversi pakan, laju pertumbuhan spesifik dan kelulushidupan. Ikan guppy dengan bobot 0,19 ± 0,03 g diperoleh dari pembudidaya ikan hias guppy Sleman, Yogyakarta. Penelitian dilaksanakan di Galaksi Akuatik Indonesia, Semarang pada bulan Desember 2018-Januari 2019. Penelitian ini menggunakan metode eksperimen dengan rancangan acak lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 kali ulangan. Perlakuan yang diterapkan adalah penambahan tepung bunga marigold dalam pakan buatan dengan dosis A (0 mg/kg), B (25 mg/kg), C (50 mg/kg) dan D (75 mg/kg). Hasil penelitian ini menunjukkan bahwa tepung bunga marigold berpengaruh nyata (P<0,05) terhadap tingkat kecerahan warna ikan guppy, namun tidak berpengaruh nyata (P>0,05) terhadap bobot mutlak, rasio konversi pakan (FCR), laju pertumbuhan spesifik (SGR) dan kelulushidupan (SR). Perlakuan C (50 mg/kg) memberikan nilai tertinggi pada peningkatan kecerahan warna ikan guppy (P. reticulata) yaitu 4,05. Kesimpulan yang diperoleh adalah dosis tepung bunga marigold 50 mg/kg memberikan hasil tertinggi pada kecerahan warna ikan guppy (P. reticulata). Kata Kunci : Guppy; Marigold; Pakan; Kecerahan Warna. ABSTRACT Guppy (P. reticulata) is one of the freshwater fish that has various colour with many type of fin pattern. The colour of ornamental fish is depend of the pigment cell. This pigment is produced by the carotenoid in diet fish. One of the carotenoid producing ingredients is marigold flour. This research is used to review and find out the best dose of marigold flour in artificial feed to increase he pigmentation of guppy fish. The parameters are the absolute weight, feed conversion rasio, specific growth rate and survival rate. Guppy fish with weight 0,19 ± 0,03 g were from ornamental guppy fish farmer Sleman, Yogyakarta. The experiment was conducted at Galaksi Akuatik Indonesia, Semarang in December 2018 till January 2019. This research used an experimental method with a complete randomized design (RAL) that consisting of 4 treatments and 3 replications respectively. The treatments are the addition of marigold flour in artificial feed with dose A (0 mg/kg), B (25 mg/kg), C (50 mg/kg) and D (75 mg/kg). The results of this research are indicate that marigold flour has a significant effect on the pigmentation of guppy fish, but does not has significant affect to absolute weight, feed conversion ratio, specific growth rate and survival rate. Treatments C (50 mg/kg) gave the highest value for increasing the pigmentation of guppy fish (P. reticulata) which is 4,05. The conclusion is the dosage of marigold flour 50 mg/kg gave the highest value for pigmentation of guppy. Keywords : Guppy, Marigold, Feed, Colour Intensity
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PANJAITAN, YOSA KALAM, SUCAHYO SUCAHYO, and FERDY SEMUEL RONDONUWU. "Guppy fish (Poecilia reticulata Peters) population structure in Gajah Putih River, Surakarta, Central Java." Bonorowo Wetlands 6, no. 2 (December 1, 2016): 103–9. http://dx.doi.org/10.13057/bonorowo/w060204.
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Panjaitan YK, Sucahyo, Rondonuwu FS. 2016. Guppy fish (Poecilia reticulata Peters) population structure in Gajah Putih River, Surakarta, Central Java. Bonorowo Wetlands 6: 103-109. The study of fish population structure is one strategy to know the condition of fish population and water pollution level in a waters area. Guppy fish (Poecilia reticulata Peters) can live in various conditions of water quality, especially in rivers. The Gajah Putih River flowing through Surakarta, Central Java is the habitat of guppy fish. The number of residential and factory activities that dump waste into the Gajah Putih River, causing a decrease in river water quality. Research on the population structure of Guppy fish in Gajah Putih river, Surakarta City was conducted between September and December 2014. Sampling was done purposively where the Guppy fish was found. There are 10 locations along the Gajah Putih River for sampling, each 300m away. At each location, a random sample of 30 fish was collected, then sorted by age and sex. There are also measurements of energy reserves in fish samples, as well as physical and chemical factors of water. Based on temperature, DO, pH TS and COD, the environmental conditions of the Gajah Putih River waters can still be tolerated by Guppy fish. The difference of environmental parameters between stations is relatively small, so it does not affect the difference of population structure of Guppy fish between stations.
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Charlesworth, Deborah, Yexin Zhang, Roberta Bergero, Chay Graham, Jim Gardner, and Lengxob Yong. "Using GC Content to Compare Recombination Patterns on the Sex Chromosomes and Autosomes of the Guppy, Poecilia reticulata, and Its Close Outgroup Species." Molecular Biology and Evolution 37, no. 12 (July 22, 2020): 3550–62. http://dx.doi.org/10.1093/molbev/msaa187.
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Abstract Genetic and physical mapping of the guppy (Poecilia reticulata) have shown that recombination patterns differ greatly between males and females. Crossover events occur evenly across the chromosomes in females, but in male meiosis they are restricted to the tip furthest from the centromere of each chromosome, creating very high recombination rates per megabase, as in pseudoautosomal regions of mammalian sex chromosomes. We used GC content to indirectly infer recombination patterns on guppy chromosomes, based on evidence that recombination is associated with GC-biased gene conversion, so that genome regions with high recombination rates should be detectable by high GC content. We used intron sequences and third positions of codons to make comparisons between sequences that are matched, as far as possible, and are all probably under weak selection. Almost all guppy chromosomes, including the sex chromosome (LG12), have very high GC values near their assembly ends, suggesting high recombination rates due to strong crossover localization in male meiosis. Our test does not suggest that the guppy XY pair has stronger crossover localization than the autosomes, or than the homologous chromosome in the close relative, the platyfish (Xiphophorus maculatus). We therefore conclude that the guppy XY pair has not recently undergone an evolutionary change to a different recombination pattern, or reduced its crossover rate, but that the guppy evolved Y-linkage due to acquiring a male-determining factor that also conferred the male crossover pattern. We also identify the centromere ends of guppy chromosomes, which were not determined in the genome assembly.
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Mutmainah, Siti, Eko Prasetyo, and Lilis Sugiarti. "DAYA PREDASI IKAN CUPANG (Betta splendens) DAN IKAN GUPPY (Poecilia reticulate) TERHADAP LARVA INSTAR III NYAMUK Aedes aegypti SEBAGAI UPAYA PENGENDALIAN VEKTOR PENYAKIT DEMAM BERDARAH DENGUE (DBD)." Jurnal Sains Natural 4, no. 2 (December 3, 2017): 98. http://dx.doi.org/10.31938/jsn.v4i2.81.
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Beta Fish Predation Power and Guppies Against the Third Instar Larvae of Mosquitos as a Vector Control Efforts in Dengue Fever Dengue Hemorrhagic Fever (DHF) disease was a disease caused by dengue virus infection remains a public health problem in Indonesia. The disease attacks all age groups every years. Effort to eradication DHF done by fulfill the predator of fish like cupang and guppy. The study to determined the difference of predation potential between betta and guppy toward the 3rd instar of larvae Aedes aegypti. This study was experimental with comparative study and one shoot chase study design. The population was larvae of Aedes aegypti mosquito 3rd instar with betta and guppy as many as 5. Every treatment used the larvae as many as 25. The treatment observe in 1, 2 , 4 and 6 hours the data analyze used the independent samples test. The results of independent samples test got the p value 0.000, proves there were the significantly difference of predation potential of betta and guppy toward the 3rd instar III of Larvae Aedes aegypti mosquito. Suggested to the society can used the predator fish to eradication the DHF disease. Keywords: The potential of predator fish Cupang (Betta sp.), Guppy (Poecilia reticulata), 3rd instar of larvae, Aedes aegypti. ABSTRAK Demam Berdarah Dengue (DBD) merupakan penyakit yang disebabkan oleh virus dan ditularkan oleh nyamuk Aedes aegypti yang masih menjadi masalah kesehatan masyarakat di Indonesia. Penyakit ini menyerang semua kelompok umur dan muncul setiap tahun. Pengendalian DBD dilakukan dengan memanfaatkan ikan seperti ikan cupang dan guppy. Penelitian ini bertujuan untuk mengetahui perbedaan daya predasi ikan cupang (Betta sp.) dan ikan guppy (Poecilia reticulata) terhadap larva instar III nyamuk Aedes aegypti. Jenis penelitian ini adalah eksperimental bersifat komparatif dengan desain one shoot chase study. Subyek penelitian adalah larva nyamuk Aedes aegypti instar III, ikan cupang dan guppy masing-masing sebanyak 5 ekor. Setiap waktu pengamatan menggunakan larva instar III sebanyak 25 ekor dan diulang sebanyak 5 kali. Pengamatan dilakukan selama 1, 2, 4 dan 6 jam. Analisis data menggunakan independent samples test. Hasil uji Independent Samples Test didapatkan nilai p value 0.000, membuktikan adanya perbedaan yang bermakna antara daya predator ikan cupang (Betta sp.) dengan ikan guppy (Poecilia reticulata) terhadap larva instar III nyamuk Aedes aegypti. Daya predator paling baik adalah ikan cupang. Disarankan kepada masyarakat untuk memanfaatkan ikan predator dalam upaya mengendalikan penyakit Demam Berdarah.Kata Kunci: daya predator ikan cupang (Betta sp.), ikan guppy (Poecilia reticulata), larva instar III nyamuk Aedes aegypti.
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Merino T., Francisco, and Hermann J. Droste. "Adaptación del Guppy <i>Lebistes reticulatus</i> al ambiente II. La adaptación fisiológico - metabólica." Actualidades Biológicas 12, no. 45 (December 6, 2017): 68–76. http://dx.doi.org/10.17533/udea.acbi.330312.
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Se investigó la adaptación del Guppy Lebister reticulatus proveniente de dos hábitats de clima, templado y cálido, a factores ambientales tales como carencia de oxígeno y variación de temperatura.Los Guppys que viven bajo carencia de oxígeno, aumentan la actividad de las enzimas glucolíticas, particularmente la deshidrogenasa láctica (EC 1.1.1.27) y acumulan como producto final lactato.La adaptación a la temperatura se refleja: (1) en la resistencia enzimática a temperaturas altas, (2) en la disminución general de las actividades enzimáticas y (3) en el incremento de la concentración de lactato, lo que significa una mayor participación de la glucólisis para la producción de energía.
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Charlesworth, Deborah, Roberta Bergero, Chay Graham, Jim Gardner, and Karen Keegan. "How did the guppy Y chromosome evolve?" PLOS Genetics 17, no. 8 (August 9, 2021): e1009704. http://dx.doi.org/10.1371/journal.pgen.1009704.
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The sex chromosome pairs of many species do not undergo genetic recombination, unlike the autosomes. It has been proposed that the suppressed recombination results from natural selection favouring close linkage between sex-determining genes and mutations on this chromosome with advantages in one sex, but disadvantages in the other (these are called sexually antagonistic mutations). No example of such selection leading to suppressed recombination has been described, but populations of the guppy display sexually antagonistic mutations (affecting male coloration), and would be expected to evolve suppressed recombination. In extant close relatives of the guppy, the Y chromosomes have suppressed recombination, and have lost all the genes present on the X (this is called genetic degeneration). However, the guppy Y occasionally recombines with its X, despite carrying sexually antagonistic mutations. We describe evidence that a new Y evolved recently in the guppy, from an X chromosome like that in these relatives, replacing the old, degenerated Y, and explaining why the guppy pair still recombine. The male coloration factors probably arose after the new Y evolved, and have already evolved expression that is confined to males, a different way to avoid the conflict between the sexes.
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Lubis, Muhammad Zainuddin, Pratiwi Dwi Wulandari, and Sri Pujiyati. "BIOAKUSTIK SUARA STRIDULATORY GERAK IKAN GUPPY (Poecilia reticulata) PADA AIR BERSALINITAS." Jurnal Teknologi Perikanan dan Kelautan 6, no. 2 (November 17, 2016): 119–27. http://dx.doi.org/10.24319/jtpk.6.119-127.
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Studi bioakustik mempelajari produksi suara, dispersi melalui media elastis, dan penerimaan pada hewan, termasuk manusia. Intensitas amplitude suara, fluktuasi suara, dan bentuk pola-pola suara ikan. Bioakustik adalah ilmu lintas-disiplin yang menggabungkan biologi dan akustik yang biasanya merujuk pada penelitian mengenai produksi suara, dispersi melalui media elastis, dan penerimaan suara pada hewan; termasuk pada ikan guppy (Poecilia reticulata). Dalam penelitian ini, kadar garam sebesar 2 gram/mol ditambahkan ke dalam air hingga salinitas mencapai 30 ppm. Nilai intensitas awal tertinggi pada ikan guppy yaitu pada setelah penambahan garam pada hari ke 3 dan 7 memiliki intensitas yang lebih tinggi, dengan rata-rata intensitas yaitu berada pada -44 dB pada range waktu yaitu detik 40-50. Studi ini menunjukkan bahwa ikan guppy mampu bertahan pada salinitas 30 ppm dengan nilai intensitas -48 dB dan frekuensi kepakan sirip atau stridulatory ikan guppy adalah 0 sampai 19,6 kHz.
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Meizanu, Muhammad Rizki, Suri Purnama Febri, and Muhammad Syahril. "Pengaruh perbedaan suhu terhadap produktivitas induk ikan guppy (Poecilia reticulata)." Arwana: Jurnal Ilmiah Program Studi Perairan 4, no. 1 (May 29, 2022): 1–5. http://dx.doi.org/10.51179/jipsbp.v4i1.1171.
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Tujuan dari penelitian ini adalah untuk mengujii dan membandingkan pengaruh perbedaan suhu terhadap tingkat produktivitas induk ikan Guppy. Penelitian ini merupakan penelitian eksperimental, dengan menggunakan Rancangan Acak Lengkap (RAL). Ikan Guppy yang digunakan memiliki berat rata-rata 1,1 g. Ikan Guppy dipelihara selama 40 hari dengan empat perlakuan dan tiga ulangan yaitu S0 (26 0C), S1 (28 0C), S2 (30 0C) dan S3 (32 0C). Hasil dari penelitian menunjukkan bahwa dari pengaturan suhu untuk meningkatkan produktivitas pada ikan Guppy menghasilkan jumlah induk memijah, jumlah larva dan kelangsungan hidup menunjukkan hasil yang tidak berpengaruh nyata dan dari parameter kualitas air memiliki pengaruh yang nyata terhadap produktivitas. Nilai rata-rata jumlah induk memijah tertinggi terdapat pada perlakuan S1 (27,31%). Nilai rata-rata jumlah larva tertinggi terdapat pada perlakuan P3 (7%). Nilai rata-rata kelangsungan hidup tertinggi terdapat pada perlakuan S2 (81,14%). Nilai rata-rata kualitas air tertinggi terdapat pada pH diperlakuan S1 (7,3%), dan DO diperlakuan S2 (5,9%).
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Malik, Tomi, Mochamad Syaifudin, and Mohamad Amin. "Maskulinisasi Ikan Guppy (Poecilia Reticulata) Melalui Penggunaan Air Kelapa (Cocos Nucifera) Dengan Konsentrasi Berbeda." Jurnal Akuakultur Rawa Indonesia 7, no. 1 (July 31, 2019): 13–24. http://dx.doi.org/10.36706/jari.v7i1.9017.
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Masculinization is one method of sex reversal technique that can direct the sex of fish. The aim of this research is to know the effect of different concentration ofcoconut waterto percentage of male guppy fish through immersion method.This research was conducted in August - October 2018 at Fisheries Basic Laboratory, Program Study of Aquaculture, Sriwijaya University. This research used completely randomized design (CRD) with four treatments and three replications i.e without coconut water (P0), coconut water 20%(P1), coconut water 30% (P2) and coconut water 40% (P3). The observed parameters were the percentage of male guppy, survival rate and water quality (temperature, pH, ammonia and dissolved oxigen). The result showed the percentage of male guppy was 46.66 % (P0), 70.00 % (P1), 80.00 % (P2) and 83.33 % (P3). Water quality during maintenance were temperature 20.1 – 28.9 0C, pH 6.5 – 7.2, DO 3 – 6.8 mg/L, and ammonia 0.01 – 0.09 mg/L. Masculinization is one method of sex reversal technique that can direct the sex of fish. The aim of this research is to know the effect of different concentration ofcoconut waterto percentage of male guppy fish through immersion method.This research was conducted in August - October 2018 at Fisheries Basic Laboratory, Program Study of Aquaculture, Sriwijaya University. This research used completely randomized design (CRD) with four treatments and three replications i.e without coconut water (P0), coconut water 20%(P1), coconut water 30% (P2) and coconut water 40% (P3). The observed parameters were the percentage of male guppy, survival rate and water quality (temperature, pH, ammonia and dissolved oxigen). The result showed the percentage of male guppy was 46.66 % (P0), 70.00 % (P1), 80.00 % (P2) and 83.33 % (P3). Water quality during maintenance were temperature 20.1 – 28.9 0C, pH 6.5 – 7.2, DO 3 – 6.8 mg/L, and ammonia 0.01 – 0.09 mg/L.
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CUNHA, Larissa, Andressa Mariza Ribeiro GERALDO, Vagner Callai da SILVA, Matheus dos Santos CARDOSO, Alessandra Sayuri Kikuchi TAMAJUSUKU, and Márcio Aquio HOSHIBA. "Clove oil as anesthetic for guppy." Boletim do Instituto de Pesca 41, especial (September 30, 2015): 729–35. http://dx.doi.org/10.20950/1678-2305.2015v41nep729.
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Pennisi, E. "The Great Guppy Experiment." Science 337, no. 6097 (August 23, 2012): 904–8. http://dx.doi.org/10.1126/science.337.6097.904.
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Wahyudi, Basuki Rachemat, Irmalia Suryani Faradisa, and M. Ibrahim Ashari. "Sistem Kendali Otomatis pada Budidaya Ikan Guppy Berbasis IoT." Prosiding SENIATI 6, no. 1 (July 14, 2022): 146–55. http://dx.doi.org/10.36040/seniati.v6i1.4890.
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Guppy (Poecilia reticulata) merupakan salah satu spesies ikan yang memiliki fisik kecil dan warnanya yang cantik. Budidaya ikan guppy merupakan salah satu alternatif usaha dalam bidang perikanan terutama dalam sektor ikan hias. Meski ikan guppy mudah untuk dibudidayakan, terkadang kesibukan membuat lupa bahkan tidak sempat untuk memperhatikan pemeliharaannya, baik pemberian pakan maupun menjaga kualitas air. Dari permasalahan tersebut penulis merancang alat monitoring dan kendali kadar air berdasarkan parameter: suhu, pH, dan TDS (Total Dissolved Solid), serta kontrol pakan yang terjadwal pada budidaya ikan guppy dengan media akuarium. Untuk memberikan informasi terkait kondisi air sistem dapat ditampilkan pada lcd led SSD1306 serta dapat diakses dimana saja melalui jaringan internet menggunakan aplikasi Blynk. Sehingga dari penelitian tersebut didapatkan hasil pengujian nilai error sensor keseluruhan yang dibandingkan dengan alat ukur sebesar < 5%, mikrokontroller ESP32 dapat melakukan perintah pengaturan suhu air diantara 28 - 30 °C, mempertahankan nilai pH air < 7,5 dan TDS < 900ppm, serta pemberian pakan terjadwal sebanyak tiga kali sehari dan sistem yang kendalikan mikrokontroller ESP32 dapat terkoneksi pada satu projeck Blynk dengan kode token yang sama.
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Fadel, Abdalbast H., Awad J. Lamin, Randa Rajab Ali, and Karema A. Momen. "Effect of Different Dietary Protein Levels on Survival Rate and Growth Per-formance of Guppy (Poecilia reticulata)." AL-MUKHTAR JOURNAL OF SCIENCES 36, no. 2 (June 30, 2021): 175–81. http://dx.doi.org/10.54172/mjsc.v36i2.42.
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This study was carried out to evaluate the growth response of guppy Poecilia reticulata to different dietary protein levels. A total of 72 fry of guppy fish of an initial body weight 0.365± 0.01g were distributed randomly into 60 L aquaria at the density rate of 0.05 g/L. Fish were fed to satiation twice daily for eight weeks with diets containing different dietary protein levels (20%, 30%, or 40%.). The survival rate of guppy was unaffected by increasing dietary protein levels. At the end of the experiment, weight gains (g) ranging from 1.93 to 3.55 were obtained corresponding to 20% and 40% crude protein respectively. The growth performance and feeding efficiencies were significantly improved (P < 0.05) by increasing dietary protein levels. However, no significant difference (P > 0.05) was observed in the specific growth rate of fish that were fed 20% and 30% dietary protein levels. The value of the condition factor was significantly high in fish fed at 40% dietary protein. It can be concluded that a 40% dietary protein level is recommended for guppy fish.
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Lubis, Muhammad Zainuddin, and Sri Pujiyati. "PENGARUH AKLIMATISASI KADAR GARAM TERHADAP NILAI KEMATIAN DAN TINGKAH LAKU IKAN GUPPY (POECILIA RETICULATA) SEBAGAI PENGGANTI UMPAN IKAN CAKALANG (Katsuwonus Pelamis)." Jurnal Teknologi Perikanan dan Kelautan 4, no. 2 (April 6, 2017): 123–29. http://dx.doi.org/10.24319/jtpk.4.123-129.
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Aklimatisasi merupakan suatu upaya penyesuaian fisiologis atau adaptasi dari suatu organisme terhadap suatu lingkungan baru yang akan dimasukinya. Penelitian ini mengamati proses aklimatisasi kadar garam pada ikan guppy (Poecilia reticulata). Proses aklimatisasi kadar garam pada ikan Guppy yang dilakukan selama 14 hari dengan menaikkan 720 gram per hari. Kadar garam terukur adalah 30%. Ikan Guppy (Poecilia reticulata) memiliki ukuran tubuh ± 5 cm, corak warna tubuh dan sirip yang sangat cemerlang dan memiliki harga yang sangat ekonomis sehingga dapat menarik perhatian Ikan Cakalang (Katsuwonus pelamis). Awal proses aklimatisasi ikan Guppy berjumlah 65 ekor dengan berat rata-rata 1,1 gram dan panjang total yaitu 2,5 cm. Selama 8 hari pengamatan (18%), ikan mampu beradaptasi dengan lingkungannya, namun setelah hari ke 8 ikan ada yang mengalami kematian 0,02 % - 0,05%, namun secara total sampai akhir pengamatan, kematian ikan relatif lebih kecil yaitu 0,13 % (9 ekor). Hasil uji coba ikan yang dilakukan pada perairan Pulau Pramuka Kepulauan Seribu menunjukkan ikan dapat berenang dengan baik dan selalu berada di permukaan air tanpa perubahan yang terlihat yang sangat signifikan.
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Sulistyo, Dio Gilang, Titik Susilowati, and Seto Windarto. "The Effect of Immersion Doses of Hybrid Coconut Water on Guppy (Poecillia reticulata) to Increase the Male Larvae Percentage." Sains Akuakultur Tropis 5, no. 1 (April 3, 2021): 34–40. http://dx.doi.org/10.14710/sat.v5i1.9741.
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Abstract Guppy fish is one type of ornamental fish that has its charm where it has beautiful colours and a slender body shape. Male guppy fish are more attractive, have more beautiful colour patterns, longer tail fins, and a slimmer body than female guppies. Hence, their selling price is much higher and is in demand in the market in the ornamental fish industry. One way that can be done to produce male guppy fish is by using the sex reversal or masculinization method. The sex reversal method that can be used is to use a solution of young hybrid coconut water (Cocos nucifera) with different doses. The immersion process will affect the percentage of male sex in guppy fish because in the young coconut water solution there is a content of potassium which plays a role in the sex reversal process which functions to regulate testosterone regulation in the body and direct the work of androgens. The purpose of this study was to determine the effect of young coconut water on the sex ratio of male guppies resulting from the immersion of female broodfish and to determine the best dose for the success rate of masculinization of guppy fish. The research was conducted from April to June 2020 in guppy fish farmers in Sidomulyo Village, East Ungaran District, Semarang Regency. The test animal used was the Black Moscow fish. This study used an experimental method with a completely randomized design of 4 treatments and 3 replications. Treatment of different immersion doses of young coconut water solution used were A (without immersion), B (40%), C (45%), D (50%). The data observed included the percentage of the male sex, survival rate and water quality. The results obtained from the research showed that the percentage value of male guppy fish was treated A (50.57 ± 3.48%), B (84.90 ± 2.55%), C (90.42 ± 1.67%), D (96.90 ± 1.34%). The results of the survival rate are treatment A (98.91 ± 0.95%), B (95.58 ± 2.48%), C (91.25 ± 3.46%), D 84.36 ± 3.62 %. The results of water quality observations were in the form of temperatures ranging from 26.9-28.9 ℃, pH (7.2-7.9), and DO ranging from 3.5-5.5 mg/ L. The conclusion was that immersion of young coconut water solution in pregnant guppy broods with different doses had a significant effect (P <0.05) on the percentage of the male sex. The best treatment was treatment D (50%) which resulted in the percentage value of male sex 96.90 ± 1.34%. Keywords: Black Moscow, potassium, masculinization, androgen hormone
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Satoto, Tri Baskoro Tunggul, Dyah Mahendrasari Sukendra, Ignatius Hardaningsih, and Ajib Diptyanusa. "The Influence of Digestive Tract Length of Larvivorous Fish Related to Predation Potential on Aedes aegypti Larvae." Unnes Journal of Public Health 8, no. 2 (July 31, 2019): 139–44. http://dx.doi.org/10.15294/ujph.v0i0.30734.
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Biological vector control by using larvivorous fish will be beneficial in reducing Aedes aegypti population, hence reducing risk of dengue virus transmission. It is important to select the larvivorous fish according to its digestive organ.Current study aimed to investigate the predation potential among the fish species and to identify the influence of the digestive tract length of the fish related to their predation potential. The research was an analytical observational study with post-test only design. Third stage larvae of Aedes aegypti were used as preys for tilapia (Oreochromis niloticus), common carper (Cyprinus carpio), and guppy (Poecillia reticulata). In association with their digestive tract length, predation potential of tilapia, common carper, and guppy showed statistical differences (P<0.05). Tilapia demonstrated highest predation of the larvae, followed by common carper and guppy. There are associations between difference in shapes of mouth and intestines, mouth width, intestinal length, and predation potential of these fish species. Current study results showed possible associations between digestive tract length of tilapia, common carper and guppy and predation potential on Aedes aegypti larvae, allowing these fish species to be used inbiological control of Aedes aegypti.
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Fraser, Bonnie A., James R. Whiting, Josephine R. Paris, Cameron J. Weadick, Paul J. Parsons, Deborah Charlesworth, Roberta Bergero, et al. "Improved Reference Genome Uncovers Novel Sex-Linked Regions in the Guppy (Poecilia reticulata)." Genome Biology and Evolution 12, no. 10 (August 27, 2020): 1789–805. http://dx.doi.org/10.1093/gbe/evaa187.
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Abstract Theory predicts that the sexes can achieve greater fitness if loci with sexually antagonistic polymorphisms become linked to the sex determining loci, and this can favor the spread of reduced recombination around sex determining regions. Given that sex-linked regions are frequently repetitive and highly heterozygous, few complete Y chromosome assemblies are available to test these ideas. The guppy system (Poecilia reticulata) has long been invoked as an example of sex chromosome formation resulting from sexual conflict. Early genetics studies revealed that male color patterning genes are mostly but not entirely Y-linked, and that X-linkage may be most common in low-predation populations. More recent population genomic studies of guppies have reached varying conclusions about the size and placement of the Y-linked region. However, this previous work used a reference genome assembled from short-read sequences from a female guppy. Here, we present a new guppy reference genome assembly from a male, using long-read PacBio single-molecule real-time sequencing and chromosome contact information. Our new assembly sequences across repeat- and GC-rich regions and thus closes gaps and corrects mis-assemblies found in the short-read female-derived guppy genome. Using this improved reference genome, we then employed broad population sampling to detect sex differences across the genome. We identified two small regions that showed consistent male-specific signals. Moreover, our results help reconcile the contradictory conclusions put forth by past population genomic studies of the guppy sex chromosome. Our results are consistent with a small Y-specific region and rare recombination in male guppies.
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Nurlina, Nurlina, and Zulfikar Zulfikar. "Pengaruh lama perendaman induk ikan guppy (Poecilia reticulate) dalam madu terhadap nisbah kelamin jantan (sex reversal) ikan guppy." Acta Aquatica: Aquatic Sciences Journal 3, no. 2 (October 29, 2016): 75. http://dx.doi.org/10.29103/aa.v3i2.327.
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Penelitian ini bertujuan untuk mendapatkan waktu perendaman yang terbaik bagi induk ikan guppy (Poecilia reticulata. Penelitian ini dilaksanakan pada bulan November sampai dengan Januari 2015 yang bertempat di Laboratorium Hatchery dan Teknologi Budidaya Fakultas Pertanian, Universitas Malikussaleh. Menggunakan metode eksperimental dan Rancangan penelitian yang digunakan Rancangan Acak Lengkap (RAL) non faktorial dengan 4 perlakuan dan 3 ulangan. Hasil penelitian menunjukkan bahwa Pengaruh lama perendaman yang Berbeda menunjukkan hasil yang berbeda nyata terhadap keberhasilan jenis kelamin jantan ikan guppy. Dengan hasil perlakuan yang terbaik terdapat pada perlakuan C dengan perendaman 15 jam dengan jumlah rata-rata 89.93%. Sedangkan yang terendah terdapat pada perlakuan (A) perendaman 9 jam yaitu (72.32%). Saran Perlu adanya penelitian lanjutan mengenai jantanisasi dengan menggunakan madu dilakukan dengan dosis yang lebih tinggi dan waktu pemaparan singkat, serta perlu di lakukan penelitian mengenai kemampuan ikan guppy untuk menyerap madu yang di berikan.This study aimed to get the best immersion time for the guppy brood fish (Poecilia reticulate). The research was conducted in November 2014 until January 2015 which was held at the Laboratory of Aquaculture Hatchery and Technology, Faculty of Agriculture, University of Malikussaleh. The method of this study wos experimental menthod and analysis used completely randomized design (CRD) with 4 treatments and 3 replications. The results showed that the soaking time influenced significantly to the success of the male sex of guppy fish. The best treatment of soaking time was a 15- hours immersion with the male ratio 89.93%. While the lowest one was obtaimed in treatment of 9 hours immersion which was of (72.32%) of male. Range Value of water quality parameters during the study, namely the temperature was 26.4 - 28. 0 ° C, pH between 6.5 -8.0. There fore Suggestions for further research by using is to implement the higher doses and shorter exposure time, as well as further rescarch is also needed to do on to ability of guppy fish in absor bigy honey.
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Brown, Grant E., and Jean-Guy J. Godin. "Chemical alarm signals in wild Trinidadian guppies (Poecilia reticulata)." Canadian Journal of Zoology 77, no. 4 (September 15, 1999): 562–70. http://dx.doi.org/10.1139/z99-035.
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We investigated the presence and possible function of chemical alarm signals (alarm pheromones) in wild Trinidadian guppies (Poecilia reticulata) using laboratory, trapping, and direct field observational methods. In laboratory experiments, female guppies from a population exposed to high predation significantly increased their shoaling, dashing, and freezing behaviours and significantly reduced area use when exposed to the skin extract of sympatric female guppies. When exposed to the skin extract of females from a low-predation population, female guppies from a high-predation population exhibited significant, though smaller, increases in antipredator behaviour. No significant differences in antipredator behaviours were noted when females were exposed to swordtail (Xiphophorus helleri) skin extract, which lacks any known alarm pheromone. We conducted two field experiments to confirm these laboratory results. In a trapping experiment, significantly more guppies were caught in funnel traps labelled with distilled water than in paired traps labelled with sympatric guppy skin extract. In a final experiment, a realistic model of a natural predator (pike cichlid, Crenicichla alta), paired with either sympatric guppy skin extract or distilled water, was presented to groups of free-ranging guppies in pools of a high-predation river. Significantly fewer guppies were observed within a 50-cm radius of the predator model and significantly fewer guppies inspected the model when it was paired with guppy skin extract versus distilled water. Taken together, our results strongly suggest the presence of a chemical alarm signal (alarm pheromone) in the Trinidadian guppy, establish the validity of laboratory and trapping studies in the investigation of chemical alarm signalling, and demonstrate that alarm pheromones may function to mediate predation risk under natural conditions in the guppy.
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Nugroho, Anwari Adi, Ahmad Muzaki, Arista Indah Anggraini, and Dwi Haryanti. "STUDI PERILAKU INTERAKSI IKAN GUPPY JANTAN DAN BETINA (Poecilia reticulata ) PADA MASA REPRODUKSI." TEKNOSAINS: MEDIA INFORMASI SAINS DAN TEKNOLOGI 15, no. 3 (December 30, 2021): 287. http://dx.doi.org/10.24252/teknosains.v15i3.20582.
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Guppy fish is one type of ornamental fish that has many types. Various body shapes and colors make guppy fish one of the favorite types of ornamental fish to fill the aquarium. The pattern of care and easy breeding makes guppy fish widely cultivated by the community. This study aims to determine the interaction behavior of male and female guppies (Poecilia reticulata) during reproduction. This research was conducted at the practitioner's house, in December 2020. This research used a descriptive exploratory research which was carried out by observing the behavior of male and female guppies directly based on the behavior patterns that occurred. This study used an ad libtum sampling method. The results showed that male guppies have beautiful bodies and male guppies are actively showing off their body beauty all the time by tilting their bodies upwards while wagging their tails.
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Tripathi, Namita, Margarete Hoffmann, Eva-Maria Willing, Christa Lanz, Detlef Weigel, and Christine Dreyer. "Genetic linkage map of the guppy, Poecilia reticulata , and quantitative trait loci analysis of male size and colour variation." Proceedings of the Royal Society B: Biological Sciences 276, no. 1665 (March 18, 2009): 2195–208. http://dx.doi.org/10.1098/rspb.2008.1930.
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We report construction of a genetic linkage map of the guppy genome using 790 single nucleotide polymorphism markers, integrated from six mapping crosses. The markers define 23 linkage groups (LGs), corresponding to the known haploid number of guppy chromosomes. The map, which spans a genetic length of 899 cM, includes 276 markers linked to expressed genes (expressed sequence tag), which have been used to derive broad syntenic relationships of guppy LGs with medaka chromosomes. This combined linkage map should facilitate the advancement of genetic studies for a wide variety of complex adaptive phenotypes relevant to natural and sexual selection in this species. We have used the linkage data to predict quantitative trait loci for a set of variable male traits including size and colour pattern. Contributing loci map to the sex LG for many of these traits.
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Mohammed, Ryan S., Stanley D. King, Paul Bentzen, David Marcogliese, Cock van Oosterhout, and Jackie Lighten. "Parasite diversity and ecology in a model species, the guppy ( Poecilia reticulata ) in Trinidad." Royal Society Open Science 7, no. 1 (January 2020): 191112. http://dx.doi.org/10.1098/rsos.191112.
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The guppy ( Poecilia reticulata ) is a model species in ecology and evolution. Many studies have examined effects of predators on guppy behaviour, reproduction, survival strategies, feeding and other life-history traits, but few have studied variation in their parasite diversity. We surveyed parasites of 18 Trinidadian populations of guppy, to provide insight on the geographical mosaic of parasite variability, which may act as a source of natural selection acting on guppies. We found 21 parasite species, including five new records for Trinidad. Spatial variation in parasite diversity was significantly higher than that of piscine predators, and significant variation in parasite richness among individuals and populations was correlated with: (i) host size, (ii) snail species richness, and (iii) the distance between populations. Differences in parasite species richness are likely to play an important, yet underestimated role in the biology of this model species of vertebrate ecology and evolution.
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Poeser, Fred N., Michael Kempkes, and Isaäc J. H. Isbrücker. "Description of Poecilia (Acanthophacelus) wingei n. sp. from the Paría Peninsula, Venezuela, including notes on Acanthophacelus Eigenmann, 1907 and other subgenera of Poecilia Bloch and Schneider, 1801 (Teleostei, Cyprinodontiformes, Poeciliidae)." Contributions to Zoology 74, no. 1-2 (2005): 97–115. http://dx.doi.org/10.1163/18759866-0740102007.
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The taxonomy of the common guppy, Poecilia reticulata Peters, 1859, is reviewed and the closely related Campoma guppy, P. wingei n. sp., is described. Formerly, the common guppy was not judged to be closely related to any other species of Poecilia, but the new species is the second species to be allocated in the subgenus Acanthophacelus Eigenmann, 1907. The recognition of P. wingei results from observed character displacement, i.e., on the interaction between two closely related species in a shared environment. In addition to differences in coloration, behaviour also indicates specific differences. The area in which P. wingei occurs, the Campoma region at the base of the Paría Peninsula in Venezuela, hints to an origin of the subgenus Acanthophacelus prior to the uplift of the Cordilleras, i.e., the eastern orogenesis of the Andes. Moreover, an explanation is offered for aberrant molecular data in Trinidadian guppies.
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BARUA, ADITI, SAIFUDDIN RANA, FARHANA ISLAM SHAWON, MASUMA KHANOM MUNTAHA, SK ISTIAQUE AHMED, SHAHIDA ARFINE SHIMUL, and SK AHMAD AL NAHID. "Effect of background color on the growth pattern and coloration of guppy (Poecilia reticulata)." Bangladesh Journal of Fisheries 33, no. 1 (June 30, 2021): 13–20. http://dx.doi.org/10.52168/bjf.2021.33.02.
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A study was carried out to investigate the effects of background color on the growth, skin pigmentation and breeding performances of guppy, Poecilia reticulata. Guppy fish was reared in tanks with four different colors as treatments such as T0 (transparent), T1 (red), T3 (blue) and T4 (green) for 5 months. There were significant differences in growth and coloration among the treatments. The growth performance was found significantly higher in transparent background compared to the other treatments. The results showed that the highest mean weight (0.259 ±0.018 g), mean length (3.067±0.208 cm) and SGR (0.165±0.012) of the fish were significantly higher in T0. Least mean weight (0.167± 0.025 g), mean length (2.53±.0.058 cm) and SGR (0.104±0.017) were observed in T1 indicating association of red color with slower growth performance of guppy, compared to other treatments. Study showed significant influence of background color in skin pigmentation. Fishes reared in transparent tanks showed the highest value of carotenoid (0.00175±0.00004mg/g) and fishes reared in the red tank showed the lowest value of carotenoid (0.00092±0.000035 mg/g). Green background enhanced red orange color on fish skin and provided high amount of carotenoid value (0.00143±0.000046 mg/g) than that with blue (0.00095±0.000025 mg/g). These results suggest significant influence of background color on growth and skin pigmentation patterns of Guppy.
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Charlesworth, Deborah. "The puzzling guppy Y chromosome." Nature Reviews Genetics 22, no. 8 (May 4, 2021): 480–81. http://dx.doi.org/10.1038/s41576-021-00369-1.
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LALAND, KEVIN N., and SIMON M. READER. "Foraging innovation in the guppy." Animal Behaviour 57, no. 2 (February 1999): 331–40. http://dx.doi.org/10.1006/anbe.1998.0967.
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Wijaya, Yellen Audina, and Kusuma Hendrajaya. "ANALYSIS OF Ca IN GUPPY FISH (Poecilia reticulata) AT KALIRUNGKUT WITH ICPS." JOURNAL OF PHARMACY SCIENCE AND TECHNOLOGY 1, no. 1 (July 10, 2018): 20. http://dx.doi.org/10.30649/pst.v1i1.48.
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<p><strong><em>ABSTRACT</em></strong></p><p><strong><em> </em></strong><em>This study was conducted with the aim of knowing the level of calcium in guppy fish taken from the ditch in Kalirungkut Village area and also know the existence of guppy fish potency to be used as source of raw material of animal feed in the form of fish meal. Method of destruction of sample used is wet destruction by using HNO3 and HCl. For qualitative analysis and analysis of sample rate used ICPS instrument. From qualitative analysis yields peak at wavelength 393,366 nm which proves existence of calcium in fish sample. From the analysis of calcium levels gives results that guppy fish contain calcium with levels</em><em> </em><em>averaging 4.28%. From the analysis of calcium content in the sample then guppy fish potentially used as a source of raw material for animal feed seen from the calcium levels that have calcium levels of 2.5-5%</em><em>.</em></p><p> </p><p> </p><p><strong><em>ABSTRAK</em></strong></p><p><strong><em> </em></strong><em>Penelitian ini dilakukan dengan tujuan mengetahui kadar kalsium dalam ikan</em><em> </em><em>guppy yang diambil dari selokan di daerah Kelurahan Kalirungkut serta</em><em> </em><em>mengetahui adanya potensi ikan guppy untuk digunakan sebagai sumber bahan</em><em> </em><em>baku pakan ternak dalam bentuk tepung ikan. Metode destruksi sampel yang</em><em> </em><em>digunakan adalah destruksi basah dengan menggunakan HNO3 dan HCl. Untuk</em><em> </em><em>analisis kualitatif dan analisis kadar sampel digunakan instrumen ICPS. Dari</em><em> </em><em>analisis kualitatif menghasilkan puncak pada panjang gelombang 393,366 nm</em><em> </em><em>yang membuktikan adanya kalsium dalam sampel ikan. Dari analisis kadar</em><em> </em><em>kalsium memberikan hasil bahwa ikan guppy mengandung kalsium dengan kadar</em><em> </em><em>rata-rata 4,28%. Dari hasil analisis kadar kalsium dalam sampel maka ikan guppy</em><em> </em><em>berpotensi digunakan sebagai sumber bahan baku pakan ternak dilihat dari kadar</em><em> </em><em>kalsium yang mempunyai persyaratan kadar kalsium 2,5-5%.</em><em> </em></p><p> </p>
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Hori, Reiji, Violet Phang, and Lam Toong Jin. "Immunolabeling of vitellogenin in the oocyte of viviparous fish, Poecilia reticulata." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 3 (August 12, 1990): 62–63. http://dx.doi.org/10.1017/s0424820100157851.
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The guppy is viviparous and fertilization is internal. The spermatozoa are introduced by gonopodium of the male and the fertilization may occur upon the completion of maturation. The maturation of the primary oocyte probably starts immediately after puturition. The present study is to observe the changes of the follicular layer and egg cortex in the oocyte of the guppy and also to observe the accumulation of vitellogenin in the oocyte by use of immunolabeling method.Highly purified vitellogenin from the fish was used as immunogen to obtain rabbit anti-vitel 1ogenin antibody. Immunoglobulin (IgG) fraction was prepared by precipitation of the antiserum with 50% ammonium sulfate followed by gel filtration through Toyopearl HW55S column chromatography.The oocyte of the guppy, Poecilia reticulata were obtained by dissecting the female. Pre-embedding technigue was applied to immunolabeling of vitellogenin. The oocytes fixed for five hours in chille d 1% g l utaraldehyde and 2 % paraformaldehyde solution diluted with 0.1 M phosphate buffer (pH: 7.0)
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Putra, Aldi Triavin Dwi, and Mardi Hardjianto. "SISTEM PENGATUR SUHU DAN PH AIR AQUARIUM OTOMATIS DENGAN METODE FUZZY LOGIC BERBASIS NODEMCU." SKANIKA 6, no. 1 (January 31, 2023): 32–41. http://dx.doi.org/10.36080/skanika.v6i1.2998.
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Ikan Guppy merupakan ikan air tawar yang banyak ditemui pada daerah tropis. Ikan Guppy banyak digemari karena memiliki corak dan pola warna yang indah. Ikan Guppy banyak dibudidayakan karena memiliki nilai jual yang cukup tinggi pada kalangan penghobi ikan hias. Pemeriksaan kondisi suhu dan pH aquarium budidaya umumnya masih dilakukan secara manual. Lingkungan ideal bagi ikan Guppy berkisar pada suhu 24oC sampai 32oC dan pH 6 sampai 7. Penulis telah melakukan penelitian untuk memonitoring dan mengatur suhu serta pH secara otomatis dengan menggunakan metode fuzzy. Pada pengujian yang sudah dilakukan, alat yang dibuat membaca nilai suhu dan pH dengan baik. Sensor yang digunakan sebagai input pada perangkat yang dibuat yaitu sensor DS18B20 dan sensor PH 4502C. Alat dapat mengubah nilai input suhu kedalam himpunan keanggotaan fuzzy dengan baik. Nilai fuzzy yang didapat kemudian akan digunakan untuk menentukan nilai output dari perangkat yang sudah terhubung. Output yang digunakan merupakan pompa DC 12v sebanyak empat buah dimana akan digunakan untuk menaikan suhu, menurunkan suhu, menguras air dan mengisi air pada aquarium yang digunakan. Alat yang digunakan untuk menaikan dan menurunkan suhu yaitu sebuah thermoelektrik yang diapit dengan dua water block. Perangkat yang dibuat menggunakan mikrokontroler NodeMCU sebagai pengolah data input dan akan memberikan sinyal output pada relay yang sudah terhubung dengan pompa. Pada hasil pengujian rancangan yang sudah dilakukan, rancangan sistem dapat bekerja dengan baik dan mampu memberikan nilai output sesuai dengan perhitungan fuzzy yang sudah di tentukan. Pada pengujian rancangan perangkat input membaca nilai suhu antara 24,25 – 27,94oC dan memberikan nilai 1 pada keanggotaan fuzzy sedang. Pada perangkat input pH, ketika alat memberi nilai 6,48 dan memberikan nilai 0,33 pada keanggotaan fuzzy asam.
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Dwinanti, Sefti Heza, M. Hanggara Putra, and Ade Dwi Sasanti. "PEMANFAATAN AIR KELAPA (Cocos nucifera) UNTUK MASKULINISASI IKAN GUPPY (Poecilia reticulata)." Jurnal Akuakultur Rawa Indonesia 6, no. 2 (December 12, 2018): 117–22. http://dx.doi.org/10.36706/jari.v6i2.7155.
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ABSTRACT Masculinization is a method of sex reversal technique that can direct sexuality from female to male. The purpose of this study was to determine the effects of coconut water on masculinization in guppy by immersion administration. The study used a completely randomized design (CRD) with three treatments and three replications. After 12 days post spawning, female guppies were immersed for 8 hours.The concentrations were : 0%(P0), 20% (P1), and 40% (P2). The parameters were observed including percentage of male, survival rate and water quality (thermal, pH and kalium concentration). Baby guppies were reared until sex can be determined which were 42 days of culture. The result showed that the percentage of male guppy fish was 54.44% (P0), 77.78% (P1) and 90.00% (P2). The survival rate of larval during maintenance was 100% for all treatments. Water quality during maintenance was 27.0-28.40C for temperature and 6.38-7.20 for pH. To sum up, this experiment proved that coconut water can be used for masculinization by immersed pregnant female broadstock and it produced 90% male when immersed with 40% of coconut water. Keywords : Coconut water, guppy (Poecilia reticulata), masculinization
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CABLE, JOANNE, GABRIELLE A. ARCHARD, RYAN S. MOHAMMED, MARK MCMULLAN, JESSICA F. STEPHENSON, HAAKON HANSEN, and COCK van OOSTERHOUT. "Can parasites use predators to spread between primary hosts?" Parasitology 140, no. 9 (May 29, 2013): 1138–43. http://dx.doi.org/10.1017/s003118201300067x.
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SUMMARYParasites typically have low reproductive fitness on paratenic hosts. Such hosts offer other significant inclusive fitness benefits to parasites, however, such as increased mobility and migration potential. The parasite fauna of the guppy (Poecilia reticulata) is dominated by the directly transmitted ectoparasites Gyrodactylus bullatarudis and Gyrodactylus turnbulli. In the wild, close predatory and competitive interactions occur between the guppy and the killifish Rivulus hartii. Previous observations suggest that these fish can share gyrodactylids, so we tested experimentally whether these parasites can use R. hartii as an alternative host. In aquaria, G. bullatarudis was the only species able to transmit from prey to predator. Both parasite species transferred equally well to prey when the predator was experimentally infected. However, in semi-natural conditions, G. bullatarudis transmitted more successfully to the prey fish. Importantly, G. bullatarudis also survived significantly longer on R. hartii out of water. As R. hartii can migrate overland between isolated guppy populations, G. bullatarudis may have an enhanced ability to disperse and colonize new host populations, consistent with its wider distribution in the wild. To our knowledge, this is the first empirical study demonstrating a predator acting as a paratenic host for the parasites of its prey.
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Imai, Soichi, Sayaka Tsurimaki, Eiko Goto, Kunika Wakita, and Kishio Hatai. "Tetrahymena Infection in Guppy, Poecilia reticulata." Fish Pathology 35, no. 2 (2000): 67–72. http://dx.doi.org/10.3147/jsfp.35.67.
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Yeo, Philip. "(And they call it) guppy love." Nature 446, no. 7138 (April 2007): 948. http://dx.doi.org/10.1038/nj7138-948a.
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Charlesworth, Brian. "Life and times of the guppy." Nature 346, no. 6282 (July 1990): 313–14. http://dx.doi.org/10.1038/346313a0.
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Haq, Izhar Amirul, Kukuh Nirmala, Yuni Puji Hastuti, and Eddy Supriyono. "Color quality, behavioral response, and blood glucose levels of guppies Poecilia reticulata (Peters, 1859) with the addition of Indian almond leaves (Terminalia catappa) in fish containers." Jurnal Iktiologi Indonesia 22, no. 1 (February 28, 2022): 49–64. http://dx.doi.org/10.32491/jii.v22i1.581.
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Guppies are ornamental fish that have economic value and can be cultivated. One of the problems in guppies cultivation is the poor quality of body color. The solution to this problem is to improve the environmental quality in guppy aquaculture. This study evaluates changes in color quality, behavioral response, and blood glucose levels of guppies using water immersion of Indian almond leaves on rearing media. Study was carried out using a completely randomized design consisting of five treatments. The rearing media was filled water with a total volume of 10 L from each treatment with different concentrations, namely, Control treatment (100% freshwater), A (75% freshwater + 25% Indian almond leaf water), B (50% freshwater + 50% Indian almond leaf), C (25% freshwater + 75% Indian almond leaf) and D (100% Indian almond leaf). Each treatment observed several test parameters such as color quality percentage, survival rate, chromatophores cells number, behavior, glucose levels, and the water physical-chemical parameters. Guppies' behavioral responses, in general, experienced an increasing change in each treatment for seven days. The highest color quality percentage by treatment D was 73.93±2.29%, and the highest glucose level was by the control treatment, which was 24.11±0.41 mg dL-1. The results of variance analysis showed that the water immersion of Indian almond leaves was significantly different on color quality, behavioral response, and blood glucose levels through Duncan's test (p<0.05).
Abstrak
Ikan guppy termasuk ikan hias yang memiliki nilai ekonomis dan dapat dibudidayakan. Salah satu masalah dalam budidaya ikan guppy yaitu kualitas warna tubuhnya yang tidak bagus. Upaya yang dapat dilakukan yaitu memperbaiki lingkungan budidaya ikan guppy. Studi ini bertujuan untuk mengevaluasi perubahan kualitas warna, respons tingkah laku, dan kadar glukosa ikan guppy menggunakan rendaman air daun ketapang pada media pemeliharaan. Evaluasi ini dilakukan dengan menggunakan rancangan acak lengkap yang terdiri atas lima perlakuan. Media pemeliharaan diisi air dengan total volume 10 L dari setiap perlakuan dengan konsentrasi yang berbeda yaitu, perlakuan Kontrol (100% air tawar), A (75% air tawar + 25% air daun ketapang), B (50% air tawar + 50% air daun ketapang), C (25% air tawar + 75% air daun ketapang) dan D (100% air daun ketapang). Setiap perlakuan diamati beberapa parameter uji seperti persentase kualitas warna, tingkat sintasan, jumlah sel kromatofora, tingkah laku, kadar glukosa, dan parameter fisik kimiawi perairan. Respons tingkah laku ikan guppy secara umum mengalami perubahan yang meningkat dalam setiap perlakuan selama tujuh hari. Persentase kualitas warna tertinggi pada perlakuan D yaitu sebesar 73,93±2,29% dan nilai kadar glukosa tertinggi pada perlakuan Kontrol yaitu 24,11±0,41 mg dL-1. Hasil analisis sidik ragam menunjukkan bahwa rendaman air daun ketapang berbeda nyata terhadap kualitas warna, respons tingkah laku dan kadar glukosa darah melalui uji Duncan (p0,05).
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Komilus, C. F., and N. M. M. Mufit. "Dried acetes as growth promoter for guppy (Poecilia reticulata) nutrition." IOP Conference Series: Earth and Environmental Science 919, no. 1 (November 1, 2021): 012049. http://dx.doi.org/10.1088/1755-1315/919/1/012049.
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Abstract Acetes is a marine shrimp that is still an under-studied source as feed ingredient for tropical ornamental fish. Ornamental fish is regarded as pet fish due to its mystic attractiveness for pet fish enthusiasts and requires good protein source to attain good growth and skin colour enhancement. The prevailing feed industry due to continuos pandemic has resulted many enthusiasts to look for alternative growth promoter as feed for guppy. The aims of this study were to determine the nutritional composition in dried Acetes and to investigate the effects of dietary dried Acetes meal on growth performance of Guppy (Poecilia reticulate). Five dietary isocaloric feeds namely Tcontrol (commercial feed only), T0 (100% commercial feed and 0% of dried Acetes.), T1 (75% commercial diet and 25% of dried Acetes spp.), T2 (50% commercial diet and 50% of dried Acetes), T3 (25% commercial diet and 75% of dried Acetes) and T4 (0% commercial diet and 100% of dried Acetes) were formulated as feed for juveniles of Guppy (Poecilia reticulata) reared in triplicates for 30 days. Growth indices like Body Weight Gain, Feed Conversion Rate, Feed Intake and Survival Rate were observed in every 10 days. Results indicated that T4 with 100% dried Acetes attained a significantly high BWG of 222.6% with low feed intake and FCR of less than 3.5. It can be concluded that inclusion of 50 to 100% dried Acetes in feed has contributed to optimal growth performance of guppy. It is also recommended that further studies on dietary Acetes could be done to examine other properties that could be further developed as superfeed for ornamental fish and thereby enhance growth and productivity of the ornamental fish industry as well as economic efficiency.
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Junaedi, Junaedi, and Wendi Usino. "Smart Fish Farm based on IoT As Monitoring to Reduce the Number of Death in Guppy Fish." RSF Conference Series: Engineering and Technology 1, no. 2 (December 20, 2021): 1–13. http://dx.doi.org/10.31098/cset.v1i2.460.
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During the transition from dry season to rainy season or vice versa, very high temperature fluctuations often occur, causing large number of deaths in guppy fish farming. The death of this guppy fish is also triggered by water conditions that are not maintained. Therefore, a system that can monitor water conditions in real time without being limited by distance, and that can cope the drastic temperature changes is needed. If water conditions can be monitored in real time, of course, the guppy fish in aquarium or tank will become healthier, well-maintained and will produce the best quality guppy fish. For this reason, the researcher makes a system that is able to monitor the condition of water in the aquarium to reduce the number of deaths in guppies. The researcher conducts trials using Fuzzy Mamdani method of three input variables from water temperature sensor, pH sensor and turbidity sensor which defuzzification result shows crips output value at 44.63. That result puts water condition in “Fair” level, and when it is matched with the calculation result of matlab r2013a using Fuzzy Mamdani, the result is 44.8 which is not far different. The result of this study is a smart fish farm system that can monitor water conditions in aquariums or tanks, such as: feeding time, checking and controlling temperature, monitoring water pH, monitoring water turbidity levels, lights control that can automatically turn on and off with room lighting indicators, and drain when the water is turbid. This smart fish farm system is made with an Arduino microcontroller that is connected to the internet based on Internet of Things (IoT) and the Mamdani Fuzzy Logic method. This smart fish farm system can also store records with platforms from Thingspeak and MitApp for the mobile applications making.
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Hadisaputra, Dodi, Ernawati, and Suandi. "ANALISIS USAHA IKAN HIAS AIR TAWAR DI KOTA JAMBI." JALOW | Journal of Agribusiness and Local Wisdom 3, no. 1 (June 29, 2020): 25–37. http://dx.doi.org/10.22437/jalow.v3i1.9789.
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Ornamental fish is a fish that has a distinctive shape, color and character so as to create an aquarium atmosphere that supports spatial layout and is able to provide a peaceful atmosphere. The purpose of this study was to determine the description of ornamental fish business and analyze the feasibility of ornamental fish business in Jambi City. The qualitative method is used to describe descriptively the general description of the location of the study and the characteristics of ornamental fish farmers, while the quantitative method uses the Analysis of Income and Revenue of ornamental fish business, cost analysis, income analysis and cost balance (R/C Ratio), Net Benefits - Cost Ratios (Net B/C), and institutionally descriptive for the betta fish, guppy and botia ornamental fish business. Overall, the general description of ornamental fish farming business in Jambi City is conducted conventionally. The average R/C ratio of the Betta ornamental fish business is 2.60, guppy is 2.02 and botia is 1.22. The highest average NPV in the betta ornamental fish in the mid-scale farming business is Rp. 60,745,160.71, guppy on a large scale is Rp. 31,385,065.48, and botia on a large scale with a value of Rp. 78,034,144.35. Overall, this ornamental fish business has an NPV value of> 0. The ornamental fish business in Jambi City is feasible to run and develop, betta ornamental fish business on a small scale with an average B/C Ratio of 1.15 and medium with an average value of average 1.60, guppy on a small scale with an average value of 1.02, and botia on a medium scale with an average value of 1.00 and large with a value of an average of 1.22.
Keywords: Ornamental Fish, Jambi City.
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Kamaszewski, Maciej, Marek Skrobisz, Maciej Wójcik, Kacper Kawalski, Adrian Szczepański, Patryk Bujarski, Hubert Szudrowicz, Andrzej Przemysław Herman, and Jakub Martynow. "The Role of Transcription Factors in Gonad Development and Sex Differentiation of a Teleost Model Fish—Guppy (Poecilia reticulata)." Animals 10, no. 12 (December 15, 2020): 2401. http://dx.doi.org/10.3390/ani10122401.
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The guppy (Poecilia reticulata) is one of the world’s most popular ornamental fish. Due to lecithotrophic viviparous, it is commonly used in toxicological studies and environmental monitoring. This study aimed to investigate the molecular mechanisms of gonad development and differentiation during guppy ontogenesis. The study mainly focused on the role and localization of potential specific sex markers and transcription factors: Sox9, Dmrt1, Erβ. For histological analysis, guppies of both sexes were collected at 1, 60, and 360 dph (day post-hatching). The gonads morphology and immunohistochemistry detection of mentioned markers localization were performed. The expression of Sox9 protein was compared between sexes. Histological analysis revelated all types of male germinal cells in 60 dph guppy’s testes. Maturated oocytes were visible in the ovaries of 360 dph fish. The Sox9 expression varied in spermatocytes and spermatids, from cellular to nuclear localization, and was higher in ovaries. Dmrt1 was detected in all testes groups and 360 dph ovaries. The Erβ was observed in both sexes at 60 and 360 dph. For the first time, the localization of transcription factors in guppy during ontogenesis was traced. The Sox9 designation as a factor regulating the development of germinal cells in adult guppies may facilitate the analysis of xenobiotics’ influence on fish’s reproductive system.
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Yanar, Mahmut, Çiğdem Çalım Akray, Ece Evliyaoğlu, and Zeynep Erçen. "Lepistes ve Japon Balığı Larvalarının Beslenmesinde Artemia sp.’ye Alternatif Olarak Mikrokapsül Yemin Kullanılması." Turkish Journal of Agriculture - Food Science and Technology 7, no. 10 (October 12, 2019): 1575. http://dx.doi.org/10.24925/turjaf.v7i10.1575-1580.2611.
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In this study, the effects of Artemia sp. nauplii and micro capsulated feed on growth performance and survival rate of guppy (Poecilia reticulata) and goldfish (Carassius auratus) larvae were compared at the end of three weeks of rearing period. Length of goldfish larvae (4.82 mm) fed Artemia sp. (from 4 to 12/mL/day) were between 7.97 and 9.76 mm at the end of the trial while these values were between 6.80 and 7.21 mm for those fed microencapsulated feed (from 10 to 30 mg/L/day). On the other hand length of guppy larvae fed Artemia sp. (from 5 to 25/mL/day) were between 13.02 and 17.00 mm, whereas these values were remained between 11.98 and 12.38 mm for those fed microencapsulated feed (from 10 to 40 mg/L/day). A similar result was also observed in survival rates. Survival rate of goldfish larvae fed Artemia sp. were 88.91-97.61% in while those fed microencapsulated feed were 6.19-87.14%. On the other hand survival rate of guppy larvae fed Artemia sp. were 99.17-100.00% whereas those fed microencapsulated feed were 57.50-87.50%. Eventually, microencapsulated feed was not as successful as Artemia sp. on the growth and survival rate of larvae of both species.
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Shahjahan, Reza Md, Md Jubayer Ahmed, Rowshan Ara Begum, and Md Abdur Rashid. "Breeding biology of guppy fish, Poecilia reticulata (Peters, 1859) in the laboratory." Journal of the Asiatic Society of Bangladesh, Science 39, no. 2 (February 3, 2014): 259–67. http://dx.doi.org/10.3329/jasbs.v39i2.17866.
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The breeding biology of guppy fish, Poecilia reticulata (Cyprinodontiformes: Poiciliidae) was studied during March 2008 to May 2009 in Zoological garden laboratory, Curzon Hall campus, Dhaka University. Guppy bred all over the year except in the winter months December and January with a peak period in July. They were viviparous and multiple breeders, i.e., give birth to fry several times in the breeding season. The mean egg diameter was measured to be (1.02±0.08mm) and fecundity was estimated (40-89) per gram of body weight. The gestation period ranged 25-35 days with an average of 28.1±2.12 days. Developmental stages observed under a compound microscope were classified based on the changes in the developing eye, such as optic cup, early-eyed, middle-eyed, late-eyed, very late-eyed etc. It was noticed that tail portion comes out first at birth. The number of fry per brood ranged from 12 to 60. New born fries were observed with transparent or blackish in colour having slender body with jaws developed on mouth and were fully capable of swimming, eating, and avoiding danger. Guppy grew rapidly, attained sexual maturity at 8 -10 weeks and reached full size in 6 months. DOI: http://dx.doi.org/10.3329/jasbs.v39i2.17866 J. Asiat. Soc. Bangladesh, Sci. 39(2): 259-267, December 2013
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Hoffmann, Margarete, Namita Tripathi, Stefan R. Henz, Anna K. Lindholm, Detlef Weigel, Felix Breden, and Christine Dreyer. "Opsin gene duplication and diversification in the guppy, a model for sexual selection." Proceedings of the Royal Society B: Biological Sciences 274, no. 1606 (September 26, 2006): 33–42. http://dx.doi.org/10.1098/rspb.2006.3707.
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Identification of genes that control variation in adaptive characters is a prerequisite for understanding the processes that drive sexual and natural selection. Male coloration and female colour perception play important roles in mate choice of the guppy, a model organism for studies of natural and sexual selection. We examined a potential source for the known variation in colour perception, by analysing genomic and complementary DNA sequences of genes that code for visual pigment proteins. We find high sequence variability, both within and between populations, and expanded copy number for long-wave sensitive (LWS) opsin genes. Alleles with non-synonymous changes that suggest dissimilar spectral tuning properties occur in the same population and even in the same individual, and the high frequency of non-synonymous substitutions argues for diversifying selection acting on these proteins. Therefore, variability in tuning amino acids is partitioned within individuals and populations of the guppy, in contrast to variability for LWS at higher taxonomic levels in cichlids, a second model system for differentiation owing to sexual selection. Since opsin variability parallels the extreme male colour polymorphism within guppy populations, we suggest that mate choice has been a major factor driving the coevolution of opsins and male ornaments in this species.
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Marnani, Sri, Ren Fitriadi, and Arinta Putri. "PENGARUH PAKAN KOMERSIAL YANG DIPERKAYA TEPUNG WORTEL (Daucus carota) SEBAGAI SUMBER KAROTEN TERHADAP PENINGKATAN KUALITAS WARNA IKAN GUPPY (Poecilia reticulata)." Jurnal Akuakultur Rawa Indonesia 10, no. 1 (June 30, 2022): 90–99. http://dx.doi.org/10.36706/jari.v10i1.16003.
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Guppy fish is one of the ornamental fish commodities that is quite in demand, because of its various types with beautiful colors. The purpose of this study was to determine the effect of adding carrot flour in commercial feed to improve the color quality of guppy fish and the best dose. The test fish used were male guppy fish strain HB red with sizes ranging from 2–3 cm. This research was conducted using an experimental design, namely a Completely Randomized Design (CRD) consisting of five treatments (commercial feed enriched with carrot flour as much as 0%; 2,5%; 5%; 7,5%; 10%) and three replications. The results showed that the addition of a dose of carrot flour had an effect on improving the color quality of guppies and the highest color quality improvement was found in treatment 4 (10% 2 carrot flour) with a chroma value of 3.97±0,18c , while in the control treatment, treatment 1, treatment 2, and treatment 3 got chroma values of 1.26±0.12a, 1.28±0.03a, 1.71±0.06a, 2.72±0.31b. Survival showed the results were not significantly different, that is 100%. Water quality includes an average temperature of 25,5– 26,6?C, pH 7–8, DO 6,7–7,8 mg/L. Key words : HB Red; Carotene; Chroma value; Survival
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Sim, S. H., E. K. Seng, S. Y. Lim, T. J. Lam, and Y. M. Sin. "Effect of threadfin aquareovirus recombinant proteins on the resistance of guppy (Peocilia reticulata) to guppy aquareovirus infection." Aquaculture 235, no. 1-4 (June 2004): 123–38. http://dx.doi.org/10.1016/j.aquaculture.2004.02.006.
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El-Sabaawi, Rana W., Therese C. Frauendorf, Piata S. Marques, Richard A. Mackenzie, Luisa R. Manna, Rosana Mazzoni, Dawn A. T. Phillip, Misha L. Warbanski, and Eugenia Zandonà. "Biodiversity and ecosystem risks arising from using guppies to control mosquitoes." Biology Letters 12, no. 10 (October 2016): 20160590. http://dx.doi.org/10.1098/rsbl.2016.0590.
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Deploying mosquito predators such as the guppy ( Poecilia reticulata ) into bodies of water where mosquitoes breed is a common strategy for limiting the spread of disease-carrying mosquitoes. Here, we draw on studies from epidemiology, conservation, ecology and evolution to show that the evidence for the effectiveness of guppies in controlling mosquitoes is weak, that the chances of accidental guppy introduction into local ecosystems are large, and that guppies can easily establish populations and damage these aquatic ecosystems. We highlight several knowledge and implementation gaps, and urge that this approach is either abandoned in favour of more effective strategies or that it is used much more rigorously. Controlling mosquitoes does not need to come at the expense of freshwater biodiversity.