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Zeitschriftenartikel zum Thema „Holocentrique“

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Veröffentlicht am 25. Mai 2024

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1

Tang, Qin, Yong Liu, Chun-Hou Li, Jin-Fa Zhao und Teng Wang. „Comparative Mitogenome Analyses Uncover Mitogenome Features and Phylogenetic Implications of the Reef Fish Family Holocentridae (Holocentriformes)“. Biology 12, Nr. 10 (22.09.2023): 1273. http://dx.doi.org/10.3390/biology12101273.

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To understand the molecular mechanisms and adaptive strategies of holocentrid fish, we sequenced the mitogenome of eight species within the family Holocentridae and compared them with six other holocentrid species. The mitogenomes were found to be 16,507–16,639 bp in length and to encode 37 typical mitochondrial genes, including 13 PCGs, two ribosomal RNAs, and 22 transfer RNA genes. Structurally, the gene arrangement, base composition, codon usage, tRNA size, and putative secondary structures were comparable between species. Of the 13 PCGs, nad6 was the most specific gene that exhibited negative AT-skews and positive GC-skews. Most of the genes begin with the standard codon ATG, except cox1, which begins with the codon GTG. By examining their phylogeny, Sargocentron and Neoniphon were verified to be closely related and to belong to the same subfamily Holocentrinae, while Myripristis and Ostichthys belong to the other subfamily Myripristinae. The subfamilies were clearly distinguished by high-confidence-supported clades, which provide evidence to explain the differences in morphology and feeding habits between the two subfamilies. Selection pressure analysis indicated that all PCGs were subject to purifying selection. Overall, our study provides valuable insight into the habiting behavior, evolution, and ecological roles of these important marine fish.

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Deef, Lamiaa Elsayed Mokhtar. „First record of two squirrelfishes, Sargocentron spinosissimum and Sargocentron tiereoides (Actinopterygii, Beryciformes, Holocentridae) from the Egyptian Mediterranean coast“. Acta Ichthyologica et Piscatoria 51, Nr. 1 (31.03.2021): 107–12. http://dx.doi.org/10.3897/aiep.51.63216.

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Holocentrinae and Myripristinae (Holocentridae) are among the most apparent species in the nocturnal reef fish community. However, there is no clear assent regarding their phylogenetic relations, which is reported in their complicated taxonomic history. In this study, Sargocentron spinosissimum (Temminck et Schlegel, 1843) and Sargocentron tiereoides (Bleeker, 1853) were reported from the Mediterranean coast of Egypt (Damietta coast). This is the first record of these species which is greatly distributed across Indo-Pacific regions and eastern Africa showed the success of these species to migrate to the Mediterranean water with a good adaptation to the new habitats. In the presently reported study, 26 morphometric measurements were recorded and cytochrome c oxidase subunit I (COI) barcodes were recovered for a total of 20 specimens (8 from S. spinosissimum and 12 from S. tiereoides). The specimens from the Damietta coast, Egypt show character states diagnostic of S. spinosissimum: Head is curved. Spinous dorsal fin base straight. Soft dorsal fin base slightly raised. Spinous dorsal fin membranes red. Anterior margin of pelvic and anal fins white. Other fin rays are red. While character states diagnostic of S. tiereoides: Head is straight and pointed. Spinous dorsal fin base almost straight. Soft dorsal fin base not raised and spinous dorsal fin membranes vaguely red. Sequences of both species were submitted to the GenBank and Barcode of Life Database (BOLD) publication database which displayed 99%–100% similarity value S. tiereoides from GenBank and BOLD databases but, S. spinosissimum has not any deposited sequences from GenBank or BOLD. DNA barcoding based on COI gene was demonstrated as a powerful and useful molecular marker in the identification and differentiation of S. spinosissimum and S. tiereoides fish species.

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Kotlyar, A. N. „Holocentridae from Borodino submarine elevation (Philippine Sea)“. Journal of Ichthyology 57, Nr. 1 (Januar 2017): 37–44. http://dx.doi.org/10.1134/s0032945217010076.

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Carlson, Bruce A., und Andrew H. Bass. „Sonic/Vocal Motor Pathways in Squirrelfish (Teleostei, Holocentridae)“. Brain, Behavior and Evolution 56, Nr. 1 (2000): 14–28. http://dx.doi.org/10.1159/000006674.

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Ronoko, Stephen R., Denny B. A. Karwur und Markus T. Lasut. „Mercury (Hg) contamination in Manado Bay, North Sulawesi, Indonesia“. AQUATIC SCIENCE & MANAGEMENT 7, Nr. 1 (21.09.2019): 1. http://dx.doi.org/10.35800/jasm.7.1.2019.24993.

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Title (Bahasa Indonesia):Kontaminasi merkuri (Hg) di Teluk Manado, Sulawesi Utara, IndonesiaArtisanal gold minings, which are situated in the highlands of the northern part of Sulawesi Island,use mercury (Hg) to extract gold and dischargetheirs tailings into rivers; one of the rivers(Bailang River) is connected to Manado Bay. This could cause Hg contamination into the bay. This study aimed to assess the contamination of Hg in the aquatic ecosystem of the bay. For the assessment, the bay was divided into 2 parts, namely the North and the South, and the contamination was assessed by measuring the total Hg concentration in sediments and fishes. Determination of Hg concentration refers to the Indonesian National Standard (SNI) 01-2896-1992 and Guidance of Balai Riset dan Standarisasi Industri Manado. The results showed that the range of Hg concentrations in fish varied by species; in the northern part of the bay: Holocentridae (0.1144-0.1151 ppm), Siganidae (0.0020-0.0034 ppm), Apogonidae (0.0461-0.050 ppm), and Nemipterus (0.0142-0.0144 ppm ). While in the southern part of the bay: Holocentridae (0.1090-0.1104 ppm), Siganidae (0.160-0.164 ppm), Apogonidae (0.1280-0.1291 ppm), Nemipterus (0.0522-0.0530 ppm) , and Priacanthus sp. (0.0194-0.0210 ppm). The average concentration of Hg in sediments of the bay around river mouths varied based on location, i.e. Bailang River was 0.0502 ppm, Sario River was 0.0270 ppm, Bahu River was 0.0615 ppm, and Malalayang River was 0.0143 ppm.Pertambangan emas rakyat menggunakan merkuri (Hg), yang berada di daerah dataran tinggi bagian Utara Pulau Sulawesi, membuang limbah tailing ke sungai menuju ke laut; satu dari sungai tersebut (Sungai Bailang) bermuara ke Teluk Manado. Hal ini dapat menyebabkan kontaminasi Hg ke lingkungan perairan teluk. Penelitian ini bertujuan untuk menilai kontaminasi Hg di ekosistem perairan teluk tersebut. Untuk penilaian, perairan teluk dibagi 2 bagian, yaitu bagian Utara dan Selatan, dan kontaminasi dinilai dengan cara mengukur konsentrasi Hg total pada sedimen dan ikan. Penentuan konsentrasi Hg mengacu Standar Nasional Indonesia (SNI) 01-2896-1992 dan Panduan Balai Riset dan Standarisasi Industri Manado. Hasil penelitian menunjukkan, bahwa kisaran konsentrasi Hg dalam ikan bervariasi berdasarkan jenis; dibagian Utara teluk: Holocentridae(0,1144-0,1151 ppm), Siganidae (0,0020-0,0034 ppm), Apogonidae (0,0461-0,050 ppm), dan Nemipterus (0,0142-0,0144 ppm).Sedangkandi perairan bagian Selatan teluk: Holocentridae (0,1090-0,1104 ppm), Siganidae (0,160-0,164 ppm), Apogonidae (0,1280-0,1291 ppm), Nemipterus (0,0522-0,0530 ppm),dan Priacanthus sp.(0,0194-0,0210 ppm). Konsentrasi rata-rata Hg di sedimen perairan teluk sekitar muara Sungai Bailang sebesar 0,0502 ppm, muara Sungai Sario sebesar 0,0270 ppm, muara Sungai Bahu sebesar 0,0615 ppm, dan muara Sungai Malalayang sebesar 0,0143 ppm.

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Gayet, Mireille, und Vincent Barbin. „Nouvel Holocentridae (Pisces, Beryciformes) du Priabonien de Brendola (Italie)“. Geobios 27, Nr. 3 (Januar 1994): 335–42. http://dx.doi.org/10.1016/s0016-6995(94)80181-9.

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Parmentier, Eric, Pierre Vandewalle, Christophe Brié, Laura Dinraths und David Lecchini. „Comparative study on sound production in different Holocentridae species“. Frontiers in Zoology 8, Nr. 1 (2011): 12. http://dx.doi.org/10.1186/1742-9994-8-12.

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Copus, Joshua M., Cameron A. J. Walsh, Mykle L. Hoban, Anne M. Lee, Richard L. Pyle, Randall K. Kosaki, Robert J. Toonen und Brian W. Bowen. „Phylogeography of Mesophotic Coral Ecosystems: Squirrelfish and Soldierfish (Holocentriformes: Holocentridae)“. Diversity 14, Nr. 8 (21.08.2022): 691. http://dx.doi.org/10.3390/d14080691.

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Mesophotic coral ecosystems (MCEs: ~30 to 100+ m depth) may be older and more stable than shallow coral ecosystems that are more prone to disturbances in both the long term (glacial sea level cycles) and short term (heavy weather and anthropogenic activities). Here, we assess the phylogeography of two MCE fishes, the soldierfish Myripristis chryseres (N = 85) and the squirrelfish Neoniphon aurolineatus (N = 74), with mtDNA cytochrome oxidase C subunit I. Our goal is to resolve population genetic diversity across the Central and West Pacific and compare these patterns to three shallow-reef species in the same taxonomic family (Holocentridae). Significant population structure (ΦST = 0.148, p = 0.01) was observed in N. aurolineatus, while no structure was detected in M. chryseres (ΦST = −0.031, p = 0.83), a finding that matches the shallow-water congener M. berndti (ΦST = −0.007, p = 0.63) across the same range. Nucleotide diversity in the MCE fishes was low (π = 0.0024–0.0028) compared to shallow counterparts (π = 0.003–0.006). Coalescence times calculated for M. chryseres (~272,000 years) and N. aurolineatus (~284,000 years) are more recent or comparable to the shallow-water holocentrids (~220,000–916,000 years). We conclude that the shallow genetic coalescence characteristic of shallow-water marine fishes cannot be attributed to frequent disturbance. We see no evidence from holocentrid species that MCEs are older or more stable habitats.

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Котляр, А. Н. „ГОЛОЦЕНТРОВЫЕ РЫБЫ (HOLOCENTRIDAE) ПОДВОДНОГО ПОДНЯТИЯ БОРОДИНО (ФИЛИППИНСКОЕ МОРЕ), "Вопросы ихтиологии"“. Вопросы ихтиологии, Nr. 1 (2017): 32–39. http://dx.doi.org/10.7868/s004287521701009x.

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Bacurau, T. O. F., und W. F. Molina. „Karyotypic diversification in two Atlantic species of Holocentridae (Pisces, Beryciformes)“. Caryologia 57, Nr. 3 (Januar 2004): 300–304. http://dx.doi.org/10.1080/00087114.2004.10589409.

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Zulfahmi, Ilham, Dwi Yuliandhani, Arif Sardi, Neri Kautsari und Yusrizal Akmal. „Variasi Morfometrik, Hubungan Panjang Bobot dan Faktor Kondisi Ikan Famili Holocentridae yang Didaratkan di Pelabuhan Perikanan Samudra (PPS) Lampulo, Banda Aceh“. Jurnal Kelautan Tropis 24, Nr. 1 (20.02.2021): 81–92. http://dx.doi.org/10.14710/jkt.v24i1.9767.

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Understanding of morphometric variation, length-weight relationship, and condition factors needed to support fishery resources management and conservation. Therefore, this study aimed to determine the morphometric variation, length-weight relationship, and condition factors of the Holocentridae family landed at the Lampulo Ocean Fishing Port, Banda Aceh. A total of 50 each of the four species of fish (Myripristis berndty, Myripristis murdjan, Sargocentron tieroides and Sargocentron caudimacullatum) were collected during April 2020. Fish samples were obtained from the catch of fishermen who landed at the Lampulo Ocean Fishing Port, Banda Aceh. The parameters analyzed included morphometric variations (12 characters), length and weight frequency distribution, length-weight relationship and condition factors. The results showed that the genus Myripristis had more distinguishing characters than the genus Sargocentron, namely 50.00% and 16.66%, respectively. Myripristis berndty and Myripristis murdjan have 5 distinguishing characters (SL, HL, CPL, HD, PFL and VFL), while Sargocentron tieroides and Sargocentron caudimacullatum only have 2 distinguishing characters (SnL and PFL). The Myripristis genus that were collected tended to more length and heavier compared to the genus Sargocentron. The four spesies of Holocentridae studied had a negative allometric growth pattern (b<3) with condition factor values ranging from 0.787 to 1.417.Pemahaman terkait variasi morfometrik, hubungan panjang bobot dan faktor kondisi sangat diperlukan dalam rangka pengelolaan dan konservasi sumberdaya perikanan. Oleh karenanya, penelitian ini bertujuan untuk mengetahui variasi morfometrik, hubungan panjang bobot serta faktor kondisi dari ikan Famili Holocentridae yang didaratkan di Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh. Sebanyak masing-masing 50 ekor dari empat jenis ikan (Myripristis berndty, Myripristis murdjan, Sargocentron tieroides dan Sargocentron caudimacullatum) dikoleksi selama bulan April 2020. Sampel ikan diperoleh dari hasil tangkapan nelayan yang didaratkan di Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh. Parameter yang analisis meliputi variasi morfometrik (12 karakter), selang kelas, hubungan panjang bobot dan faktor kondisi. Hasil penelitian menunjukkan bahwa genus Myripristis memiliki karakter pembeda yang lebih banyak dibandingkan dengan genus Sargocentron yaitu masing masing sebesar 50.00% dan 16.66%. Myripristis berndty dan Myripristis murdjan memiliki 5 karakter pembeda (SL,HL, CPL, HD, PFL dan VFL), sedangkan Sargocentron tieroides dan Sargocentron caudimacullatum hanya memiliki 2 karakter pembeda (SnL dan PFL). Genus Myripristis yang dikoleksi cenderung memiliki ukuran panjang total dan bobot total yang lebih rendah dibandingkan dengan genus Sargocentron. Keempat jenis yang diteliti dalam penelitian ini memiliki pola pertumbuhan alometrik negatif (b<3) dengan nilai faktor kondisi berkisar antara 0.787 hingga 1.417

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Astakhov, D. A., und A. N. Kotlyar. „Finding of Myripristis botche (Holocentridae) in coastal waters of south Vietnam“. Journal of Ichthyology 46, Nr. 9 (Dezember 2006): 809–10. http://dx.doi.org/10.1134/s0032945206090141.

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Cutmore, Scott C., und Thomas H. Cribb. „A new order of fishes as hosts of blood flukes (Aporocotylidae); description of a new genus and three new species infecting squirrelfishes (Holocentriformes, Holocentridae) on the Great Barrier Reef“. Parasite 28 (2021): 76. http://dx.doi.org/10.1051/parasite/2021072.

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A new genus and three new species of blood flukes (Aporocotylidae) are described from squirrelfishes (Holocentridae) from the Great Barrier Reef. Holocentricola rufus n. gen., n. sp. is described from Sargocentron rubrum (Forsskål), from off Heron Island, southern Great Barrier Reef, and Lizard Island, northern Great Barrier Reef, Australia. Holocentricola exilis n. sp. and Holocentricola coronatus n. sp. are described from off Lizard Island, H. exilis from Neoniphon sammara (Forsskål) and H. coronatus from Sargocentron diadema (Lacepède). Species of the new genus are distinct from those of all other aporocotylid genera in having a retort-shaped cirrus-sac with a distinct thickening at a marginal male genital pore. The new genus is further distinct in the combination of a lanceolate body, X-shaped caeca, posterior caeca that are longer than anterior caeca, a single, post-caecal testis that is not deeply lobed, a post-caecal, post-testis ovary that is not distinctly bi-lobed, and a post-ovarian uterus. The three new species can be morphologically delineated based on the size and row structure of the marginal spines, as well by total length, oesophagus and caecal lengths, and the position of the male genital pore, testes and ovary relative to the posterior extremity. The three species of Holocentricola are genetically distinct from each other based on cox1 mtDNA and ITS2 rDNA data, and in phylogenetic analyses of 28S rDNA form a well-supported clade sister to species of Neoparacardicola Yamaguti, 1970. This is the first report of aporocotylids from fishes of the family Holocentridae and the order Holocentriformes.

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De la Cruz-Francisco, Vicencio, Vanessa Miranda Osuna-Cisneros, Seth Donovan Flores-Serrano und Jimmy Argüelles-Jiménez. „Primer registro de Sargocentron coruscum (Holocentridae) en el suroeste del golfo de México“. Novitates Caribaea, Nr. 21 (06.01.2023): 69–75. http://dx.doi.org/10.33800/nc.vi21.329.

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El presente estudio reporta por primera vez la presencia del pez ardilla Sargocentron coruscum para el suroeste del golfo de México. El avistamiento se realizó en el arrecife Lobos durante un muestreo nocturno en la pendiente de sotavento a 3 m de profundidad. Se observó un individuo de aproximadamente 15 cm entre oquedades de rocas coralinas. Este registro amplía el ámbito de distribución de S. coruscum para el suroeste del golfo de México e incrementa el conocimiento de la riqueza ictiológica de la región, la cual continua en ascenso con nuevos hallazgos en los últimos años.

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Grijalba-Bendeck, Marcela, Edward Castañeda-Moya und Arturo Acero. „Estructura de un ensamblaje íctico asociado a fondos duros en el caribe colombiano empleando la técnica del censo visual estacionario (CVE)“. Actualidades Biológicas 26, Nr. 81 (22.11.2017): 197–211. http://dx.doi.org/10.17533/udea.acbi.329448.

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Entre agosto y noviembre de 1995 se caracterizó la estructura de un ensamblaje de peces asociado a fondos duros en el Morrito de Gaira, Caribe colombiano, mediante la técnica del censo visual estacionario (CVE). Se registraron 109 especies pertenecientes a 63 géneros y 34 familias. Las familias con mayor abundancia de individuos fueron Pomacentridae, Holocentridae y Gobiidae, mientras que Serranidae, Pomacentridae y Lutjanidae mostraron la mayor riqueza de especies, entre las que se destacaron Chromis multilineata, Myripristis jacobus, Chromis cyanea, Stegastes partitus y Coryphopterus personatus. El índice de diversidad de Shannon-Wiener se calculó en 4,61 ± 0,03 para el área de estudio. Los análisis de clasificación e inverso mostraron que existen diferencias en la frecuencia y abundancia de las especies censadas entre los sectores muestreados.

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Del Moral-Flores, Luis Fernando. „First record of two soldierfishes species (Holocentriformes: Holocentridae) in Mexican waters of the Gulf of Mexico“. Hidrobiológica 33, Nr. 1 (30.04.2023): 15–23. http://dx.doi.org/10.24275/uam/izt/dcbs/hidro/2023v33n1/delmoral.

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FRICKE, RONALD, GERALD R. ALLEN, DIETMAR AMON, SERGE ANDRÉFOUËT, WEI-JEN CHEN, JEFF KINCH, RALPH MANA, BARRY C. RUSSELL, DEAN TULLY und WILLIAM T. WHITE. „Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records“. Zootaxa 4588, Nr. 1 (23.04.2019): 1. http://dx.doi.org/10.11646/zootaxa.4588.1.1.

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A checklist of the marine and estuarine fishes of New Ireland Province is presented, with special emphasis on Kavieng District, combining both previous and new records. After the recent KAVIENG 2014 expedition, a total of 1325 species in 153 families were recorded from the region. The largest families are the Gobiidae, Pomacentridae, Labridae, Serranidae, Apogonidae, Lutjanidae, Chaetodontidae, Blenniidae, Carangidae, Acanthuridae, Scaridae, Holocentridae, Syn-gnathidae, Lethrinidae and Scorpaenidae. A total of 810 fish species (61.1 % of the total marine and estuarine fish fauna) are recorded from New Ireland for the first time.The fish fauna of New Ireland includes 142 species in transitional waters and 1264 species in marine habitats, and 54 species species in freshwater habitats. Zoogeographically, 1179 species have a wide distribution range, most frequently a broad Indo-West Pacific distribution. Among the remaining species, just 12 are endemic to New Ireland.

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Faricha, Ana, Isa Nagib Edrus, Rizkie Satriya Utama, Ahmad R. Dzumalex, Abdullah Salatalohi und Bayu Prayuda. „HUBUNGAN ANTARA KOMPOSISI IKAN TARGET DAN PRESENTASE TUTUPAN KARANG HIDUP DI KEPULAUAN KEI KECIL, MALUKU“. Jurnal Penelitian Perikanan Indonesia 26, Nr. 3 (13.09.2020): 147. http://dx.doi.org/10.15578/jppi.26.3.2020.147-157.

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Ikan terumbu karang memiliki peranan penting baik secara ekonomi maupun ekologi, namun kondisi terumbu karang termasuk di perairan Indonesia yang menjadi habitat utama ikan karang mengalami degradasi. Penelitian ikan karang sudah banyak dilakukan, namun di Indonesia kondisi habitat ikan karang memiliki karakter yang berbeda-beda. Tujuan penelitian ini adalah untuk mengetahui hubungan antara komposisi ikan karang target dan tutupan karang hidup. Penelitian ini dilakukan pada bulan Oktober 2019 di Kepulauan Kei Kecil, Maluku. Metode yang digunakan adalah UVC (Underwater Visual Census) untuk data ikan karang dan UPT (Underwater Photo Transect) untuk mengkaji tutupan karang hidup. Hasil pengamatan menunjukkan bahwa terdapat 130 spesies ikan karang target yang mewakili 19 famili, dengan variasi jenis ikan target antar lokasi pengamatan berkisar antara 25-66 spesies. Kepadatan rata-rata ikan karang target sebesar 8.811 ± 4.107 Ind/ha, dan biomassa rata-rata 1.335 ± 899 Kg/ha. Komposisi ikan karang target yang memiliki kedekatan dengan tutupan karang hidup yaitu famili Siganidae, Serranidae, Lutjanidae, Holocentridae, dan Pomacentridae. Akan tetapi hubungan tersebut rendah, dan kemungkinan besar ada faktor lain yang mempengaruhi. Reef fishes have an important economic and ecological values. However, the coral reef of the globe including in the most of the Indonesian waters which is the vital habitat for reef fishes is degraded. Study on the reef fishes is an abundance, while the habitat characteristic of reef fishes in Indonesian waters has a differences. The aim of this study is to determine the relationship between the target reef fishes compositions and the percentage live coral covers. This study was carried out in October 2019 at the Kei Kecil islands, Maluku. The method used in this study is UVC (Underwater Visual Census) for collecting the reef fishes data, and the UPT (Underwater Photo Transect) for assessing the live coral coverage. The result shows that there are about 130 fishes, which representing 19 families, with species variation ranges from 25 to 66 species among the observation sites. The average density of target fishes was about 8.811 ± 4.107 Ind/ha, whereas the average biomass of target fishes was 1,335 ± 899 Kg/ha. The target reef fishes compositions that has relation with live coral covers is family Siganidae, Serranidae, Lutjanidae, Holocentridae, and Pomacentridae. However, this relationship is weak, and may influenced by other factors.

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Castro-Hernández, José J., und Ana Y. Martín-Gutiérrez. „First record of Holocentrus ascensionis (Osbeck, 1765) (Osteichthyes: Holocentridae) in the Canary Islands (Central-east Atlantic)“. Scientia Marina 64, Nr. 1 (30.03.2000): 115–16. http://dx.doi.org/10.3989/scimar.2000.64n1115.

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Wijaya, Oki, Ristiana Eryati und Iwan Suyatna. „STUDI KEANEKARAGAMAN IKAN INDIKATOR, MAYOR, TAGET PADA EKOSISTEM TERUMBU KARANG DI PERAIRAN PULAU MIANG KUTAI TIMUR“. Tropical Aquatic Sciences 1, Nr. 1 (12.02.2023): 83–88. http://dx.doi.org/10.30872/tas.v1i1.477.

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Ikan karang merupakan hewan yang berasosiasi dengan ekosistem terumbu karang, mulai dari tempat berkembang biak, mencari makan, hingga berlindung dari pemangsa. Ikan karang merupakan kelompok ikan yang selalu berkerabat dekat dengan lingkungan ekosistem terumbu karang. Ikan karang dikelompokkan menjadi 3 kategori, yaitu ikan indikator, ikan mayor, dan ikan target. Penelitian ini bertujuan untuk mengetahui populasi ikan karang di Pulau Miang Besar, Kutai Timur. Penelitian dilakukan pada bulan Desember 2020, menggunakan 4 stasiun dan pengambilan ikan karang menggunakan metode UVC (Underwater Visual Census). Hasil penelitian ditemukan bahwa ikan target ditemukan pada 5 famili, 7 spesies dan 6 marga dengan kelimpahan tertinggi dari famili Lutjanidae sebanyak 48 individu dan terendah dari famili Haemulidae dengan 1 individu. Ikan indikator ditemukan 1 famili, 2 genus, dan 5 spesies dengan kelimpahan tertinggi spesies Chaetodon lunulatus 6 individu. Ikan mayor ditemukan pada 4 famili, 22 spesies, dan 10 genus dengan kelimpahan tertinggi pada famili Pomacentridae dengan 188 individu dan terendah pada famili Apogonidae dan famili Holocentridae dengan masing-masing 3 individu.

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Craig, MT, JA Eble, BW Bowen und DR Robertson. „High genetic connectivity across the Indian and Pacific Oceans in the reef fish Myripristis berndti (Holocentridae)“. Marine Ecology Progress Series 334 (26.03.2007): 245–54. http://dx.doi.org/10.3354/meps334245.

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Bowen, B. W., A. L. Bass, A. Muss, J. Carlin und D. R. Robertson. „Phylogeography of two Atlantic squirrelfishes (Family Holocentridae): exploring links between pelagic larval duration and population connectivity“. Marine Biology 149, Nr. 4 (14.02.2006): 899–913. http://dx.doi.org/10.1007/s00227-006-0252-1.

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Chen, Hao, Haolang Zhou, Xin Wang und Xiao Chen. „The phylogenomic position of the sabre squirrelfish Sargocentron spiniferum (beryciformes: holocentridae) inferred from the mitochondrial genome“. Mitochondrial DNA Part B 1, Nr. 1 (01.01.2016): 617–18. http://dx.doi.org/10.1080/23802359.2016.1209099.

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Pereira, Felipe Bisaggio, Aldenice de Nazare Pereira und Jose Luis Luque. „A new species of Comephoronema (Nematoda: Cystidicolidae) from the squirrelfish Holocentrus adscensionis (Beryciformes: Holocentridae) off Brazil“. Folia Parasitologica 61, Nr. 1 (11.01.2014): 55–62. http://dx.doi.org/10.14411/fp.2014.001.

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Gallo-Da-Silva, Valéria, und Francisco J. De Figueiredo. „Pelotius hesselae, gen. et sp. nov. (Teleostei: Holocentridae) from the Cretaceous (Turonian) of Pelotas Basin, Brazil“. Journal of Vertebrate Paleontology 19, Nr. 2 (14.06.1999): 263–70. http://dx.doi.org/10.1080/02724634.1999.10011140.

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Vella, Adriana, Noel Vella und Sandra Agius Darmanin. „The first record of the longjaw squirrelfish, Holocentrus adscensionis (Osbeck, 1765) (Holocentriformes: Holocentridae), in the Mediterranean Sea“. Natural and Engineering Sciences 1, Nr. 3 (26.12.2016): 78–85. http://dx.doi.org/10.28978/nesciences.286371.

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Johnson, G. David, und Nalani K. Schnell. „Development of the Rostrum and Upper Jaws in Squirrelfishes and Soldierfishes (Beryciformes: Holocentridae): A Unique Ontogenetic Trajectory“. Copeia 103, Nr. 4 (Dezember 2015): 902–19. http://dx.doi.org/10.1643/cg-15-260.

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Hubert, Nicolas, Erwan Delrieu-Trottin, Jean-Olivier Irisson, Christopher Meyer und Serge Planes. „Identifying coral reef fish larvae through DNA barcoding: A test case with the families Acanthuridae and Holocentridae“. Molecular Phylogenetics and Evolution 55, Nr. 3 (Juni 2010): 1195–203. http://dx.doi.org/10.1016/j.ympev.2010.02.023.

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Dornburg, Alex, Jon A. Moore, Rachel Webster, Dan L. Warren, Matthew C. Brandley, Teresa L. Iglesias, Peter C. Wainwright und Thomas J. Near. „Molecular phylogenetics of squirrelfishes and soldierfishes (Teleostei: Beryciformes: Holocentridae): Reconciling more than 100 years of taxonomic confusion“. Molecular Phylogenetics and Evolution 65, Nr. 2 (November 2012): 727–38. http://dx.doi.org/10.1016/j.ympev.2012.07.020.

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Osman, Yassein A. A., Kélig Mahé, Samia M. El-Mahdy, Ashraf S. Mohammad und Sahar F. Mehanna. „Relationship between Body and Otolith Morphological Characteristics of Sabre Squirrelfish (Sargocentron spiniferum) from the Southern Red Sea: Difference between Right and Left Otoliths“. Oceans 2, Nr. 3 (07.09.2021): 624–33. http://dx.doi.org/10.3390/oceans2030035.

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Otolith morphology analysis is one of the main tools used for fish or fish stock identification. Moreover, otolith shape can also be used in animal dietary studies (stomach content) for the identification of prey fishes and their size according to the relationship between fish and otolith sizes. In the present study, the relationship between fish length and otolith morphological dimensions was investigated for the sabre squirrelfish, Sargocentron spiniferum (Forsskål, 1775) (family: Holocentridae). Samples of 185 fish were collected from the coast of the Red Sea, Egypt. To analyze the relationship between fish and otolith, otolith morphometric measurements (length, width, area, perimeter, weight, sulcus, and ostium) and shape factors (aspect ratio, compactness, form factor, rectangularity, roundness, ellipticity, squareness) describing the outline shape were extracted using image analysis. Generalized linear models were applied for the relationship between body length and each otolith morphology feature. From the relationships between the total length of fish and fourteen morphology features, only otolith length, caudal length, and squareness were significantly correlated with fish size. Our results provide more information for the relationship between fish length and otolith morphometric features.

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Hehanussa, Kedswin Gerson, Sulaeman Martasuganda und Mochammad Riyanto. „SELEKTIVITAS BUBU BUTON DI PERAIRAN DESA WAKAL, KABUPATEN MALUKU TENGAH“. ALBACORE Jurnal Penelitian Perikanan Laut 1, Nr. 3 (27.07.2018): 309–20. http://dx.doi.org/10.29244/core.1.3.309-320.

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Nelayan di Perairan Desa Wakal menggunakan alat tangkap bubu untuk menangkap ikan karang. Bubu terbuat dari anyaman bambu dengan celah-celah berukuran kecil berbentuk hexagonal. Konstruksi ukuran mata bubu masih belum efektif untuk meloloskan ikan-ikan yang belum layak tangkap sehingga sangat mempengaruhi kelangsungan sumberdaya ikan. Tujuan dari penelitian ini adalah menganalisis tingkat selektivitas alat tangkap bubu dengan melihat komposisi hasil tangkapan. Pengumpulan data dilakukan dengan uji coba penangkapan menggunakan 4 unit bubu buton yang dipasangcover net sebanyak 20 kali ulangan. Penelitian dilakukan pada bulan September-Desember 2016 di Desa Wakal, Kabupaten Maluku Tengah. Jumlah total hasil tangkapan bubu sebanyak 353 ekor yang terdiri dari 63 spesies dan 22 famili. Komposisi ikan dominan adalah pada famili Achanthuridae, Scaridae, Holocentridae, Serranidae dan Lethrinidae. Presentasi ikan yang layak tangkap sebesar 76.34% dan tidak layak tangkap sebesar 23.66%. Kurva selektivitasberdasarkan fungsi logistik menunjukkan bahwa peluang tertangkap ikan pada ukuran tinggi tubuh 9.5-19.5 cm, sedangkan ukuran ikan yang mampu meloloskan diri mempunyai tinggi tubuh sebesar 3.5-7.5 cm. Bubu yang digunakan nelayan tidak selektif terhadap jenis dan ukuran.Kata kunci: bubu, desa wakal, ikan karang, selektivitas.

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Thompson, E. David, Per-Erik Olsson, Gregory D. Mayer, Carl Haux, Patrick J. Walsh, Erin Burge und Christer Hogstrand. „Effects of 17β-estradiol on levels and distribution of metallothionein and zinc in squirrelfish“. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 280, Nr. 2 (01.02.2001): R527—R535. http://dx.doi.org/10.1152/ajpregu.2001.280.2.r527.

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Females of the squirrelfish family ( Holocentridae) accumulate higher levels of zinc in the liver than any other known animal. This zinc accumulation is made possible by high expression of the zinc-binding protein, metallothionein (MT). In the present study, the squirrelfish (Holocentrus ascensionis) MT cDNA was cloned and sequenced. The deduced amino acid sequence was very similar to other teleost MT. The role of estrogens on zinc metabolism was investigated by injecting male and immature female squirrelfish with 17β-estradiol (E2). E2 treatment triggered transient increases in plasma zinc and vitellogenin (VTG) levels, and both of these variables showed very similar time courses. These results suggest that E2 is responsible for the large hepatoovarian translocation of zinc observed in female squirrelfish and that VTG might be a vehicle for zinc. E2 did not directly alter the levels of zinc or MT mRNA in the liver. However, the hepatic MT protein concentration increased differentially in the nuclear fraction. Thus E2 is probably responsible for the association of MT with the nuclear fraction previously observed in untreated mature female squirrelfish.

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Bourjon, Philippe, und Ronald Fricke. „First record of the lattice soldierfish, Myripristis violacea (Actinopterygii: Holocentriformes: Holocentridae), from Reunion Island (south-western Indian Ocean)“. Acta Ichthyologica et Piscatoria 49, Nr. 4 (15.12.2019): 415–20. http://dx.doi.org/10.3750/aiep/02694.

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Fricke, Ronald. „Ostichthys spiniger, a new species of soldierfish from New Ireland, Papua New Guinea, western Pacific Ocean (Teleostei: Holocentridae)“. Ichthyological Research 65, Nr. 1 (17.10.2017): 127–33. http://dx.doi.org/10.1007/s10228-017-0600-9.

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Pranata, Bayu, Aradea Bujana Kusuma und Muhamad Ilham Azhar. „Reef Fish Species Diversity Using Environmental DNA Metabarcoding in Mansinam and Lemon Island Waters, Manokwari Regency“. Jurnal Perikanan Universitas Gadjah Mada 24, Nr. 2 (14.12.2022): 129. http://dx.doi.org/10.22146/jfs.73037.

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Biodiversity has an essential role in the stability of an ecosystem. A high level of biodiversity indicates a more stable and stable ecosystem. The decline in the quality of ecosystems such as coral reefs, seagrass beds, and mangrove forests due to anthropogenic factors and global warming threaten biodiversity. This study aims to determine the diversity of reef fish species using an environmental DNA (eDNA) approach in the waters of the Mansinam and Lemon, Manokwari Regency islands. The analysis results detected 158 individual fish comprising 26 species from 10 families (sequence identity 97-100%). The highest species abundance was found in the Pomacentridae Family. The Pomacentridae family is an ornamental fish species in coral reef ecosystems. In addition, several species from the families Serranidae, Caesionidae, Mullidae, Holocentridae, Balistidae, Scaridae, and Labridae were also detected; fish species from these families are catch targets for fishers with economic value. Assessment of fish species diversity using the Shannon-Wiener method. The diversity of fish species in the waters of the islands of Mansinam and Lemon is in the high category, namely 3.17. High diversity indicates a stable and stable ecosystem condition.

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Moravec, František, und Jean-Lou Justine. „New records of spirurid nematodes (Nematoda, Spirurida, Guyanemidae, Philometridae & Cystidicolidae) from marine fishes off New Caledonia, with redescriptions of two species and erection of Ichthyofilaroides n. gen.“ Parasite 27 (2020): 5. http://dx.doi.org/10.1051/parasite/2020003.

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Recent examinations of spirurid nematodes (Spirurida) from deep-sea or coral reef marine fishes off New Caledonia, collected in the years 2006–2009, revealed the presence of the following five species: Ichthyofilaroides novaecaledoniensis (Moravec et Justine, 2009) n. gen., n. comb. (transferred from Ichthyofilaria Yamaguti, 1935) (females) (Guyanemidae) from the deep-sea fish Hoplichthys citrinus (Hoplichthyidae, Scorpaeniformes), Philometra sp. (male fourth-stage larva and mature female) (Philometridae) from Epinephelus maculatus (Serranidae, Perciformes), Ascarophis (Dentiascarophis) adioryx Machida, 1981 (female) (Cystidicolidae) from Sargocentron spiniferum (Holocentridae, Beryciformes), Ascarophis (Ascarophis) nasonis Machida, 1981 (males and females) from Naso lituratus and N. unicornis (Acanthuridae, Perciformes), and Ascarophisnema tridentatum Moravec et Justine, 2010 (female) from Gymnocranius grandoculis (Lethrinidae, Perciformes). Two species, I. novaecaledoniensis and A. nasonis, are redescribed based on light microscopical (LM) and scanning electron microscopical (SEM) examinations, the latter used in these species for the first time. Morphological data on the specimen of A. tridentatum from the new host species are provided. Philometra sp. (from E. maculatus) most probably represents a new gonad-infecting species of this genus. The newly established genus Ichthyofilaroides n. gen. is characterized mainly by the presence of a small buccal capsule and by the number and distribution of cephalic papillae in the female; it is the sixth genus in the Guyanemidae.

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Wu, Ni, Qingliu Huan, Kemei Du, Rong Hu und Tian-jiu Jiang. „Ciguatera toxins in wild coral reef fish along the southern coast of China“. Marine and Freshwater Research 66, Nr. 12 (2015): 1168. http://dx.doi.org/10.1071/mf14215.

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Ciguatera toxins (CTXs) in wild coral reef fish collected from the southern coast of China were analysed. Cigua-Check kits were used for primary screening. Mouse bioassay was used to quantify toxins of the samples identified as positive by the Cigua-Check kit. High-performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) was used to further analyse P-CTX-1 of ciguatera toxins in the samples identified as positive by the mouse bioassay. The mouse bioassay showed that ciguatoxic fish existed in all six sampling sites, and 47.8% of the samples were confirmed to be contaminated with CTXs. The implicated species largely belonged to Chaetodontidae, Scaridae, Holocentridae, Lutjanidae and Serranidae. The toxicities varied from 0 to 169ng P-CTX-1kg–1 fish flesh according to mouse bioassay. There was no significant correlation between fish toxicity and fish weight, length and feeding habits. The accuracy rate of the Cigua-Check kit in judging toxicity or non-toxicity was up to 95.7% according to the mouse bioassay. However, the Cigua-Check kit and mouse bioassay differed significantly with respect to measures of toxicity. According to HPLC–MS/MS, no P-CTX-1 was identified in any of the samples that the mouse bioassay identified as positive.

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Dornburg, Alex, Jon Moore, Jeremy M. Beaulieu, Ron I. Eytan und Thomas J. Near. „The impact of shifts in marine biodiversity hotspots on patterns of range evolution: Evidence from the Holocentridae (squirrelfishes and soldierfishes)“. Evolution 69, Nr. 1 (19.12.2014): 146–61. http://dx.doi.org/10.1111/evo.12562.

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Matsunuma, Mizuki, Yoshino Fukui und Hiroyuki Motomura. „Review of the Ostichthys japonicus complex (Beryciformes: Holocentridae: Myripristinae) in the northwestern Pacific Ocean, with description of a new species“. Ichthyological Research 65, Nr. 3 (05.03.2018): 285–314. http://dx.doi.org/10.1007/s10228-018-0625-8.

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Matsunuma, Mizuki, Yoshino Fukui und Hiroyuki Motomura. „Correction to: Review of the Ostichthys japonicus complex (Beryciformes: Holocentridae: Myripristinae) in the northwestern Pacific Ocean, with description of a new species“. Ichthyological Research 65, Nr. 3 (28.03.2018): 315. http://dx.doi.org/10.1007/s10228-018-0630-y.

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Thompson, E. David, Gregory D. Mayer, Patrick J. Walsh und Christer Hogstrand. „Sexual maturation and reproductive zinc physiology in the female squirrelfish“. Journal of Experimental Biology 205, Nr. 21 (01.11.2002): 3367–76. http://dx.doi.org/10.1242/jeb.205.21.3367.

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SUMMARY Female squirrelfish (Holocentridae) accumulate higher concentrations of hepatic zinc than any other known organism. In the liver cells, up to 70% of zinc is bound to metallothionein (MT), which is expressed at extremely high levels. These attributes are related to reproduction in ways that have not been fully characterized. In the present study, we have demonstrated that female-specific zinc and MT accumulation and distribution are strongly correlated to the onset of sexual maturity in Holocentrus adsenscionis. Sexual maturation not only resulted in increased concentrations of zinc in the liver and plasma, but also increased levels of hepatic MT mRNA. Furthermore, mature female squirrelfish exhibited greater proportions of MT protein in the nuclear liver cell fractions. To characterize the physiology further, we have examined the influence of the female sex hormone 17 β-estradiol (E2). E2 was not sufficient to elicit an increase in hepatic zinc concentrations or MT mRNA levels. E2 administration did, however, result in increased levels of MT in the nuclear fraction as well as overall hepatic MT protein. E2 also increased concentrations of zinc in the plasma. The changes in zinc concentration in the bloodstream followed the same time course as vitellogenin(VTG) transport from the liver. However, the high ratio of molar concentrations of zinc to VTG in the bloodstream suggest that VTG may not be the primary vehicle for hepato-ovarian zinc transport in squirrelfish.

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Couto, João Victor, und Fabiano Paschoal. „Two new species of Colobomatus Hesse, 1873 (Crustacea: Philichthyidae) parasitic in the interorbital canals of Holocentrus spp. (Holocentriformes: Holocentridae) in the South Atlantic Ocean“. Systematic Parasitology 98, Nr. 5-6 (27.10.2021): 753–64. http://dx.doi.org/10.1007/s11230-021-10009-1.

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Coleman, Richard R., Joshua M. Copus, Daniel M. Coffey, Robert K. Whitton und Brian W. Bowen. „Shifting reef fish assemblages along a depth gradient in Pohnpei, Micronesia“. PeerJ 6 (24.04.2018): e4650. http://dx.doi.org/10.7717/peerj.4650.

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Mesophotic coral ecosystems (MCEs) continue to be understudied, especially in island locations spread across the Indo-Pacific Ocean. Pohnpei is the largest island in the Federated States of Micronesia, with a well-developed barrier reef, and steep slopes that descend to more than 1,000 m. Here we conducted visual surveys along a depth gradient of 0 to 60 m in addition to video surveys that extend to 130 m, with 72 belt transects and 12 roving surveys using closed-circuit rebreathers, to test for changes in reef fish composition from shallow to mesophotic depths. We observed 304 fish species across 47 families with the majority confined to shallow habitat. Taxonomic and trophic positions at 30 m showed similar compositions when compared against all other depths. However, assemblages were comprised of a distinct shallow (<30 m) and deep (>30 m) group, suggesting 30 m as a transition zone between these communities. Shallow specialists had a high probability of being herbivores and deep specialists had a higher probability of being planktivores. Acanthuridae (surgeonfishes), Holocentridae (soldierfishes), and Labridae (wrasses) were associated primarily with shallow habitat, while Pomacentridae (damselfishes) and Serranidae (groupers) were associated with deep habitat. Four species may indicate Central Pacific mesophotic habitat:Chromis circumaurea, Luzonichthys seaver, Odontanthias borbonius,and an undescribed slopefish (Symphysanodon sp.). This study supports the 30 m depth profile as a transition zone between shallow and mesophotic ecosystems (consistent with accepted definitions of MCEs), with evidence of multiple transition zones below 30 m. Disturbances restricted to either region are not likely to immediately impact the other and both ecosystems should be considered separately in management of reefs near human population centers.

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Hogstrand, C., N. J. Gassman, B. Popova, C. M. Wood und P. J. Walsh. „The physiology of massive zinc accumulation in the liver of female squirrelfish and its relationship to reproduction.“ Journal of Experimental Biology 199, Nr. 11 (01.11.1996): 2543–54. http://dx.doi.org/10.1242/jeb.199.11.2543.

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It is well known that zinc is an essential micronutrient and, as a rule, organisms keep relatively constant low levels of zinc to maintain cellular functions. The squirrelfish family (Holocentridae) is the only known exception from this rule. Squirrelfish accumulate very high concentrations of zinc in the liver. In the present study, we demonstrate that, while female squirrelfish store large amounts of zinc in the liver and ovaries, the males show zinc levels that are typical for vertebrates. The zinc content of the diet is the same in males and females, and zinc is not lost from the liver during starvation. Thus, the difference between genders in zinc storage is not dependent upon the diet. Rather, there are at least two processes that contribute to the accumulation in females. First, females possess high levels of two major zinc-binding proteins: metallothionein (MT) and a novel female-specific zinc-binding protein (FZnBP). In females, but not in males, almost all MT is present in the hepatocyte nucleus. FZnBP is exclusively found in the hepatocyte cytosol of females. Second, hepatocytes of female squirrelfish have a high capacity to transport zinc across the plasma membrane. In addition to the liver, only the gonads of females showed unusually high concentrations of zinc. Administration of exogenous oestrogen to females decreases the hepatic zinc concentration while there is a matching increase in the zinc content of the ovaries. Thus, oestrogen may trigger a redistribution of zinc from liver to ovaries. Together, our findings suggest that female squirrelfish may be uniquely adapted to detoxify zinc and to utilize it as a macronutrient for processes related to reproduction.

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Bray, Rodney A., und Jean-Lou Justine. „Helicometra boseli Nagaty, 1956 (Digenea: Opecoelidae) in Sargocentron spiniferum (Forsskål) (Beryciformes: Holocentridae) from New Caledonian waters with a review of the Helicometra spp. in holocentrids“. Systematic Parasitology 89, Nr. 2 (10.09.2014): 167–73. http://dx.doi.org/10.1007/s11230-014-9514-3.

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Caló, Camilla Fahning Ferreira, Alexandre Schiavetti und Mauricio Cetra. „Local ecological and taxonomic knowledge of snapper fish (Teleostei: Actinopterygii) held by fishermen in Ilhéus, Bahia, Brazil“. Neotropical Ichthyology 7, Nr. 3 (September 2009): 403–14. http://dx.doi.org/10.1590/s1679-62252009000300007.

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Local Ecological and Taxonomic Knowledge (LEK) of fish held by fishermen in the municipality of Ilhéus, Bahia, Brazil, known as the snapper ("vermelho") was examined from August 2005 to November 2006. Semi-structured interviews and tests were made with fishermen selected under the criteria of "specialists". The data analysis followed the union model of the different individual competences. Grouping analysis was performed on data referring to the localities of the occurrence of these fish, depth, coloration, and morphological characteristics of the species using the Pearson correlation coefficient (UPGMA). A total of 19 species were named within the snapper group, although three of them could not be scientifically identified. The Lutjanidae family presented the greatest numbers of species (n = 9). Other families mentioned were: the Serranidae (n = 3), Holocentridae (n = 2), Priacanthidae (n = 1), Mullidae (n = 1). The 1:1 correspondence between fishermen's local names and scientific species observed in this study indicates the richness of local fishermen knowledge. Analysis of the LEK related to the feeding habits of these fish and indicated that most were considered as being carnivorous, which agrees with the specialized literature consulted. In terms of their spatial distribution, two categories were detected: locality of occurrence (rivers/sea, coast, and offshore) and depth (surface, mid-depth, mid-depth/deep, deep). The fish were considered locally to be "winter fish", based on harvested yields. Most of the interviewees knew little about the reproductive aspects of these fish. The main criteria used to identify, name, and classify the species were based on color and morphological aspects. Much of the information gathered in this study agreed with the published literature, which strengthens the importance of including LEK in planning and decision-making processes.

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del Río, Laura, Zenaida María Navarro-Martínez, Dorka Cobián-Rojas, Pedro Pablo Chevalier-Monteagudo, Jorge A. Angulo-Valdes und Leandro Rodriguez-Viera. „Biology and ecology of the lionfish Pterois volitans/Pterois miles as invasive alien species: a review“. PeerJ 11 (25.07.2023): e15728. http://dx.doi.org/10.7717/peerj.15728.

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The lionfish is an exotic invasive fish native to the Indo-Pacific, which is established in the western Atlantic Ocean and the Caribbean Sea. Lionfish can affect native fishes and invertebrates through direct predation or competition for food. The present review aims to analyze the most relevant characteristics of the biology and ecology of lionfish as an invasive alien species, with an emphasis on Cuba. We provide a current view of the well-known lionfish as a successful invasive fish, and we put in this context the information regarding lionfish in Cuban waters, enriching the background knowledge, and giving novel and relevant information. The compilation of numerous publications on the subject has allowed for a more complete analysis of essential aspects of this invader in the Cuban archipelago. The consulted literature records that the first report of lionfish in Cuba occurred in 2007; subsequently, sightings of lionfish were reported in numerous localities. In 2010, the lionfish was considered an invasive alien species, which currently is established in various habitats, at depths up to 188 m, throughout the Cuban archipelago (e.g., coral reefs, mangroves, seagrass beds, submerged artificial structures). In addition, it has reached very high densities (12.42 ind./100 m2), which exceed those reported in the Indo-Pacific as well as in many locations in the Western Atlantic. It has been confirmed that the lionfish in Cuba also presents numerous characteristics that guarantee its success as an invader, among them: less quantity and diversity of parasites than other Atlantic fishes found in similar environments, a high number of gametes in the gonads, reproductive activity during all year and wide diet. The most important fish families for the lionfish diet in Cuba have been Pomacentridae, Gobiidae, Scaridae, Holocentridae, Mullidae, Labridae and Acanthuridae; and the most important crustacean orders are Decapoda, Mysida, Stomatopoda and Isopoda. In Cuba, as in the entire invaded region, numerous investigations have been directed to evaluate the impact of this invader on ecosystems, and although there is enough information, their results differ. Additional studies are required to assess the impact of lionfish as a predator after several years of invasion on a larger geographic scale in Cuba and other areas of the region. This knowledge will allow the development of more effective control strategies. Periodic lionfish culling have been carried out in Cuban MPAs as a control strategy, and some positive results have been observed, such as the average size reduction; however, further efforts are still required. Due to the importance of the study of lionfish as an invader, this review is a necessity as it provides, for the first time, a comprehensive analysis of lionfish information and results from Cuba, which is adequately contrasted with previous studies of other areas, particularly, from the Greater Caribbean.

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Fogg, Lily G., Fabio Cortesi, David Lecchini, Camille Gache, N. Justin Marshall und Fanny de Busserolles. „Development of dim-light vision in the nocturnal reef fish family Holocentridae I: retinal gene expression“. Journal of Experimental Biology, 05.08.2022. http://dx.doi.org/10.1242/jeb.244513.

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Developmental changes to the visual systems of animals are often associated with ecological shifts. Reef fishes experience a change in habitat between larval life in the shallow open ocean to juvenile and adult life on the reef. Some species also change their lifestyle over this period and become nocturnal. While these ecological transitions are well documented, little is known about the ontogeny of nocturnal reef fish vision. Here, we used transcriptomics to investigate visual development in 12 representative species from both subfamilies, Holocentrinae (squirrelfishes) and Myripristinae (soldierfishes), in the nocturnal coral reef fish family, Holocentridae. Results revealed that the visual systems of holocentrids are initially well-adapted to photopic conditions with pre-settlement larvae having high cone opsin gene expression and a broad cone opsin gene repertoire (8 genes). At reef settlement, holocentrids started to invest more in their scotopic visual system and compared to adults, showed upregulation of genes involved in cell differentiation/proliferation. By adulthood, they had well-developed scotopic vision with high rod opsin gene expression, reduced cone opsin gene expression and repertoire (1-4 genes) and upregulated phototransduction genes. Finally, although the two subfamilies shared similar ecologies across development, their visual systems diverged after settlement, with Myripristinae investing more in scotopic vision than Holocentrinae. Hence, both ecology and phylogeny likely determine the development of the holocentrid visual system.

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Fogg, Lily G., Fabio Cortesi, David Lecchini, Camille Gache, N. Justin Marshall und Fanny De Busserolles. „Development of dim-light vision in the nocturnal reef fish family Holocentridae II: retinal morphology“. Journal of Experimental Biology, 05.08.2022. http://dx.doi.org/10.1242/jeb.244740.

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Ontogenetic changes in the habitats and lifestyles of animals are often reflected in their visual systems. Coral reef fishes start life in the shallow open ocean but inhabit the reef as juveniles and adults. Alongside this change in habitat, some species also change lifestyles and become nocturnal. However, it is not fully understood how the visual systems of nocturnal reef fishes develop and adapt to these significant ecological shifts over their lives. Therefore, we used a histological approach to examine visual development in the nocturnal coral reef fish family, Holocentridae. We examined seven representative species spanning both subfamilies, Holocentrinae (squirrelfishes) and Myripristinae (soldierfishes). Pre-settlement larvae showed strong adaptation for photopic vision with high cone densities and had also started to develop a multibank retina (i.e., multiple rod layers), with up to two rod banks present. At reef settlement, holocentrids showed increased investment in their scotopic visual system, with higher rod densities and higher summation of rods onto the ganglion cell layer. By adulthood, they had well-developed scotopic vision with a highly rod-dominated multibank retina comprising 5-17 rod banks and enhanced summation of rods onto the ganglion cell layer. Lastly, the ecological demands of the two subfamilies were similar throughout their lives, yet their visual systems differed after settlement, with Myripristinae showing a more pronounced investment in scotopic vision than Holocentrinae. Thus, it is likely that both ecology and phylogeny contribute to the development of the holocentrid visual system.

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de Busserolles, Fanny, Fabio Cortesi, Lily Fogg, Sara M. Stieb, Martin Luehrmann und N. Justin Marshall. „The visual ecology of Holocentridae, a nocturnal coral reef fish family with a deep-sea-like multibank retina“. Journal of Experimental Biology, 24.11.2020, jeb.233098. http://dx.doi.org/10.1242/jeb.233098.

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The visual systems of teleost fishes usually match their habitats and lifestyles. Since coral reefs are bright and colourful environments, the visual systems of their diurnal inhabitants have been more extensively studied than those of nocturnal species. In order to fill this knowledge gap, we conducted a detailed investigation of the visual system of the nocturnal reef fish family Holocentridae. Results showed that the visual system of holocentrids is well adapted to their nocturnal lifestyle with a rod-dominated retina. Surprisingly, rods in all species were arranged into 6-17 well-defined banks, a feature most commonly found in deep-sea fishes, that may increase the light sensitivity of the eye and/or allow colour discrimination in dim-light. Holocentrids also have the potential for dichromatic colour vision during the day with the presence of at least two spectrally different cone types: single cones expressing the blue-sensitive SWS2A gene, and double cones expressing one or two green-sensitive RH2 genes. Some differences were observed between the two subfamilies, with Holocentrinae (squirrelfish) having a slightly more developed photopic visual system than Myripristinae (soldierfish). Moreover, retinal topography of both ganglion cells and cone photoreceptors showed specific patterns for each cell type, likely highlighting different visual demands at different times of the day, such as feeding. Overall, their well-developed scotopic visual systems and the ease of catching and maintaining holocentrids in aquaria, make them ideal models to investigate teleost dim-light vision and more particularly shed light on the function of the multibank retina and its potential for dim-light colour vision.

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