Journal articles on the topic 'Trematoda'
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1
Orlovskaya, O. M., and N. Е. Dokuchaev. "Трематоды (Trematoda, Plathelminthes) азиатского бурундука (Tamias sibiricus) Магаданской области." Bulletin of the North-East Science Center, no. 4 (December 29, 2021): 109–16. http://dx.doi.org/10.34078/1814-0998-2021-4-109-116.
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Data on trematodes (Trematoda) of the Siberian Cipmunk (Tamias sibiricus) in Magadan Oblast are presented. Four trematode species of the two families (Plagiorchiidae Lühe, 1901 (Plagiorchis vespertilionis (Müller, 1780); Pl. elegans (Rudolphi, 1802), Pl. eutamiatis (Schulz, 1932), and Brachylaimidae Goyeux et Folay, 1930 (Brachylaima recurva (Dujardin, 1845)) are identified. An illustrated description of all the four species of trematodes, first noted in the Chipmunk in the North-East of Russia, is given.
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Post, Jason M., Rachael J. Reasch, and Emily S. Bailey. "Detection of Trematodes from the Host Exotic Aquatic Snail Melanoides tuberculata in an Urban Stormwater System." Zoonotic Diseases 2, no. 4 (December 2, 2022): 258–66. http://dx.doi.org/10.3390/zoonoticdis2040021.
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The red-rimmed melania or Malaysian Trumpet Snail, Melanoides tuberculata, is a common exotic freshwater snail that has been invading an increasing number of water bodies in North America. As a well-known host for trematodes causing human and animal diseases, the pattern of invasion and parasitic infection for this species is of great concern. Snail specimens were collected from an urban stream in Los Angeles that drains into a fragile, protected wetland ecosystem. Molecular analysis identified four trematode species: Haplorchis pumilio, Fasciola jacksoni, Parorchis sp. TH-2019, and an unclassified trematode species, Trematoda distomecercaria WN-2016. H. pumilio is responsible for haplorchiasis infections, previously considered endemic to Asia. F. jacksoni infection is a significant cause of mortality in Asian elephants. This study represents the first occurrence of F. jacksoni in North America and a novel occurrence of that trematode in association with M. tuberculata. This study also represents new occurrences of Parorchis sp. TH-2019 and an unclassified trematode species, Trematoda distomecercaria WN-2016, within California and North America. Parorchis sp. TH-2019 has previously only been documented in a marine whelk. This identification of these trematodes in association with M. tuberculata further exemplifies the need for ongoing monitoring and detection, especially considering the significance of H. pumilio and haplorchiasis to public health.
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Jabal, Arif Rahman, Hairil Akbar, Fidela Amadea Dyna Setyaji, Nathasya Rizkyana Riyadi, Abi Bakring Balyas, Ivan Permana Putra, Agnes Immanuela Toemon, and Arini Ratnasari. "Freshwater Snail as Intermediate Host of Trematode in Water Channels of Palangka Raya City." Al-Kauniyah: Jurnal Biologi 15, no. 1 (June 21, 2022): 164–70. http://dx.doi.org/10.15408/kauniyah.v15i1.25957.
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AbstrakMost of the area of Palangka Raya City consists of peat swamp land that is flooded almost all year round and river flows area. Therefore, there are many species of snails that can be found in rivers and peat swamp water. The existence of snails in peat swamp ecosystems and river flows as an intermediary host for intestinal worms for mammals and humans is essential information for human-environmental health studies. Research on the capability of snails as hosts of Trematodes on peat swamp land and river flows in Palangka Raya City has never been done. Research methods include the collection and identification of snail’s and identification Trematode larvae. We collected 557 snails, and the identification showed the identity of our samples were Ampullariidae: Pila sp., Pomacea sp., Viviparidea: Bellamya sp., and Planorbidae: Indoplanorbis sp. Pila sp. was 35.90%, the most common snail found at the study site compared to Pomacea sp., Bellamya sp., and Indoplanorbis sp.. The results of this study, snail observations confirmed the presence of trematode larvae, namely cercariae and redia. This study is the first information regarding the presence of Trematodes in the snail body at the research area.AbstrakSebagian besar area di Kota Palangka Raya merupakan lahan rawa gambut yang tergenang sepanjang tahun dan daerah aliran sungai. Hal ini membuat potensi keragaman keong yang tinggi di kedua area tersebut. Selain itu, informasi mengenai keberadaan keong sebagai inang dari Trematoda di daerah lahan rawa gambut dan aliran sungai merupakan hal yang penting dalam studi kesehatan manusia dan lingkungan. Penelitian mengenai potensi keong sebagai inang dari Trematoda di lahan gambut dan aliran sungai Kota Palangka Raya belum pernah dilakukan sebelumnya. Metode penelitian meliputi koleksi dan identifikasi dari keong yang ditemukan, serta observasi fase hidup Trematoda dalam tubuh keong. Sebanyak 557 keong berhasil dikoleksi pada penelitian ini. Hasil identifikasi keong menunjukkan keberadaan dari Ampullariidae: Pila sp., Pomacea sp., Viviparidea; Bellamya sp., dan Planorbidae: Indoplanorbis sp. Pila sp. sebesar 35,90% merupakan keong yang paling banyak ditemukan di lokasi penelitian dibandingkan dengan Pomacea sp., Bellamya sp., dan Indoplanorbis sp. Hasil observasi keong mengkonfirmasi keberadaan larva Trematoda, yakni cercariae dan redia. Penelitian ini merupakan informasi pertama mengenai keberadaan Trematoda dalam tubuh keong di lokasi penelitian.
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Rzayev, F. H. "A systematic review of flukes (Trematoda) of domestic goose (Anser anser dom.)." Biosystems Diversity 29, no. 3 (August 4, 2021): 294–302. http://dx.doi.org/10.15421/012137.
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Trematodes are one of the most numerous and widespread groups of parasitic invertebrates among helminths, characterized by a complex life cycle. As the final host, digenetic flukes parasitize vertebrates, including domestic waterfowl. Infection of hosts with parasitic digenetic worms causes huge economic damage to poultry. But trematode fauna of domestic geese are presented mainly only for individual regions. Despite the fact that there is already a systematic review of tapeworms and acanthocephala of domestic birds – geese and ducks, there are, unfortunately, no review articles on the taxonomy of digenetic flukes for geese (Anser anser dom.). Taking into account the relevance of the topic, based on our own and extensive literature data, we set the task to determine the general species composition of digenetic flukes (Trematoda), parasitizing in domestic geese which have been recorded in the world until 2020. Each Trematoda species is provided with the following data: scientific name, authority and year, first, second intermediate, auxiliary and final hosts, site in the host body, collecting localities and geographic distribution, and literature sources. Currently it is established that there are 149 species of helminths parasitising domestic geese. The taxonomic composition of the class Trematoda registered in domestic geese consists of 2 classes, 14 families, 30 genera and 65 species. Of all the species of trematodes parasitizing in domestic geese, 44 species have been recorded in Europe, 26 species in Asia, 6 species in North America, 1 species in South America, 1 species in Africa and 2 species in Oceania. Three species are registered in domestic geese (Echinoparyphium recurvatum, Echinostoma revolutum, Prosthogonimus ovatus) are cosmopolitan parasites. The biggest species diversity is characterized by the families Echinostomatidae (17 species) and Notocotylidae (12 species). There are 11 species of digenetic flukes recorded in domestic geese Cyclocoelum mutabile, Echinostoma grande, E. paraulum, E. revolutum, E. robustum, Hypoderaeum conoideum, Paryphostomum novum, P. pentalobum, Catatropis verrucosa, Notocotylus attenuatus, N. parviovatus) on the territory of Azerbaijan. Four of them (Echinostoma revolutum, Hypoderaeum conoideum, Paryphostomum novum, Notocotylus attenuatus) were also noted in the course of our helminthological studies. The trematode Cyclocoelum mutabile was recorded in domestic ducks only in Azerbaijan. Most species of trematodes were found in the north-eastern part (total 9 species) and southern part (total 5 species) of Azerbaijan. This is due to the widespread distribution of molluscs – intermediate hosts of digenetic flukes, in these regions. Eighteen species of digenetic flukes parasitize both birds and mammals (Rodentia, Carnivora, Lagomorpha, Artiodactyla). And eleven species of trematodes are of medical importance, registered in humans.
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SCHOLZ, TOMÁš. "Keys to the Trematoda. Volume II (ed. Jones, A., Bray, R. A. and Gibson, D. I.), pp. 768. Commonwealth Agricultural Bureau International (CABI Publishing), UK and The Natural History Museum, London, UK, 2005. ISBN 0 85199 587 X. £150.00." Parasitology 132, no. 1 (January 2006): 153–54. http://dx.doi.org/10.1017/s0031182005229670.
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Trematodes (flukes or digeneans) are by far the most abundant group of parasitic flatworms (Neodermata), and their importance for human and animal health is indisputable. In addition, they exhibit a variety of unique adaptations to parasitism and, probably most remarkably, possess extraordinarily complicated life-cycles. Classification of trematodes represents a very difficult task due to the huge number of existing species and variety of morphological forms, sites of infection within invertebrate and vertebrate hosts and ability to infect a wide spectrum of animals. Therefore, identification of any trematode may represent a problem even for an experienced specialist. This is the reason why I appreciated so much the publication of the first volume of the Keys to the Trematoda in 2002.
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Kaniyazov and Dilmanova. "DYNAMICS OF HORSE INFECTION WITH THE TREMATODE SCHISTOSOMA TURKESTANICUM SKRJABIN, 1913 IN KARAKALPAKSTAN." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 22 (May 19, 2021): 229–33. http://dx.doi.org/10.31016/978-5-6046256-1-3.2021.22.229-233.
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The dynamics of infection of horses with the trematode Schistosoma turkestanicum Skrjabin, 1913 in Karakalpakstan was studied. We carried out scientific research in various regions of the Republic of Karakalpakstan in 2016–2020. When determining the infection of horses with trematodes in the districts of Karakalpakstan, we used methods of complete and incomplete helminthological dissection by K. I. Skriabin (1928). A total of 143 horses were examined by the complete dissection method. The article presents the results of studies carried out on the territory of the Republic of Karakalpakstan. Helminths were found in all 143 horses examined during the study. The trematode Schistosoma turkestanicum Skrjabin, 1913 was among the identified helminths, which is very common in this region. The parasitic worms Schistosoma turkestanicum were found to belong to the Plathelminthes type, the Trematoda class. The study results indicate that the simultaneous presence of mixed (associative) invasions by trematodes was observed in horses. It was established that trematodes found in horses parasitize on blood vessels of the bile ducts, gallbladder, liver and intestinal mesentery. The prevalence of the trematode Schistosoma turkestanicum in horses was 18.8%, and the intensity of invasion was 3876–12538 specimens. The trematode Schistosoma turkestanicum, depending on the development cycle, develops in the presence of an intermediate host. Freshwater mollusks Lymnaea auricularia, belonging to the family Lymnaeidae perform the function of an intermediate host.
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Evsyukov, A. P., and M. G. Tsygankova. "Helminth Fauna of Bats of the Rostov Region: Review. 2. Trematoda." Russian Journal of Veterinary Pathology 23, no. 1 (March 28, 2024): 7–20. http://dx.doi.org/10.23947/2949-4826-2024-23-1-7-20.
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Introduction. The class of Trematoda includes two subclasses — Aspidogastrea and Digenea. Representatives of the former do not parasitize in bats. The definitive hosts for digenetic trematodes (Digenea) are vertebrates, including bats, in which the sexual generation (maritae) parasitizes. Gastropods or bivalves are the intermediate hosts. Supplementary hosts for the trematodes of bats are larvae and imagos of flying insects. Since in most cases the development of parthenites and cercariae of trematodes is related to water environment, the supplementary hosts are the groups of insects whose larvae live in the water. The list of bat species living in the Rostov region has been compiled in the previous research. In the present article the authors investigate the trematode fauna parasitizing in bats of the region under study. The aim of this review is to analyse the current state of knowledge on the species composition of the helminth parasitizing in chiropterans of the Rostov region.Materials and Methods. The research materials have been obtained from the libraries and open access resources: PubMed (pubmed.ncbi.nlm.nih.gov), CyberLeninka (cyberleninka.ru), Google Scholar (scholar.google.com), BHL (www.biodiversitylibrary.org), JSTOR (www.jstor.org). Some data has been provided by the colleagues.Results. 42 trematode species from 10 genera, 5 families and 1 order can parasitize in 15 bat species living in the Rostov region. The Lecithodendriidae family (24 species) and the genus Paralecithodendrium (9 species) are represented by a large number of species. Of the listed trematodes, 33 species used to be recorded on the territory of Russia.Discussion and Conclusion. The results of the conducted systematic review have revealed that the largest number of trematode species parasitizes in two bat species living in the Rostov region: the common noctule (27 species) and the serotine bat (24 species). The smallest number of species (4 per each) is found in the giant noctule and the soprano pipistrelle bat. Two species (Plagiorchis elegans and Plagiorchis vespertilionis) have been found in the companion cats and dogs includingly, wheras a case of the latter parazitising in humans has also been recorded. The presence of bats in the urban environment enables the full life cycle of these trematodes. There exists possibility of the companion animals and people to get infected through incidental ingestion of the infested insects.
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Utami, Ida Ayu N. S., Amy A. A. Ciptojoyo, and Ngurah Nyoman Wiadnyana. "HISTOPATOLOGI INSANG IKAN PATIN SIAM (Pangasius hypophthalmus) YANG TERINFESTASI TREMATODA MONOGENEA." Media Akuakultur 12, no. 1 (August 15, 2017): 35. http://dx.doi.org/10.15578/ma.12.1.2017.35-43.
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Ikan patin siam (Pangasius hypophthalmus) yang terinfestasi parasit trematoda monogenea tidak mudah dikenali gejala klinisnya secara spesifik, mengingat parasit ini menyerang organ insang. Infeksi parasit ini dapat menyebabkan kematian ikan sehingga sangat merugikan budidaya ikan patin siam. Tujuan penelitian adalah memberikan informasi secara histopatologi tentang perubahan jaringan insang ikan patin siam yang terinfestasi parasit trematoda monogenea. Penelitian ini diawali dengan pemeriksaan natif insang patin siam yang terinfestasi parasit trematoda monogenea dan dilanjutkan dengan pemeriksaan histopatologi. Pengambilan sampel ikan patin siam dilakukan sebanyak dua kali pada Mei dan Oktober 2015 di beberapa kolam budidaya. Pengamatan sampel dilakukan secara mikroskopik di Laboratorium Balai Karantina Ikan, Pengendalian Mutu dan Keamanan Hasil Perikanan, Palembang. Hasil penelitian menunjukkan bahwa dari total 150 sampel yang diamati terdapat 35 sampel atau kasus insang ikan yang terinfestasi parasit trematoda monogenea yaitu: masing-masing sebanyak 10 sampel diperoleh pada Mei dan 25 sampel pada Oktober. Pemeriksaan patologi terhadap organ insang yang terinfestasi trematoda monogenea menunjukkan bahwa lamella insang mengalami pembengkakan dan berwarna merah pucat. Parasit trematoda monogenea pada insang atau yang lebih dikenal dengan cacing insang memiliki panjang tubuh berkisar antara 0,7-0,9 mm dengan lebar 0,05-0,10 mm. Pengamatan histopatologi menunjukkan bahwa jaringan insang yang terinfestasi parasit trematoda monogenea ditandai adanya perubahan yang konsisten, yaitu hiperplasia tulang rawan hyalin, proliferasi sel mukus, hiperplasia lamella sekunder, dan fusi lamella sekunder. Perubahan ini dapat mengakibatkan kematian pada ikan akibat kekurangan oksigen dan perubahan osmoregulasi ion dalam tubuh ikan.The gills of striped catfish (Pangasius hypophthalmus) infested with parasitic trematodes monogenea are not easy to observe specifically clinical symptoms, the parasite is very harmful to the striped catfish farming. The objective of the study was to provide histopathologic information about changes in gill tissue of infected pangasius fish infested with monogeneous trematoda parasites. This study begun with an examination of native gill of striped catfish and fish infested with parasitic trematodes monogenea and continued with histopathologic examination. Striped catfish samplings were performed twice in May and October 2015 in some aquaculture ponds. Sampel analysis was done microscopically in Laboratorium of Fish Quarantine, Quality Control and Fisheries Product Safety Palembang. The results showed that among of 150 samples there were 35 samples of fish infested with parasitic trematodes monogenea, which of 10 and 25 samples were collected in May and October, respectively. The results on clinical symptoms of infected gills trematodes monogenea showed that gills swelled in lamella gills and pale red. The parasitic trematodes monogenea found in the gills which are well known as the gill worm had a body length ranging from 0.7 to 0.9 mm with a width of 0.05 to 0.10 mm. On examination of the gills infested with parasitic trematodes monogenea the histopathological changes were consistent, namely hyalin cartilage hyperplasia, mucous cell proliferation, hyperplasia secondary lamella, and the fusion of the secondary lamella. These changes could be affected on fish mortality due to lack of oxygen and ion osmoregulation changes in the body of the fish.
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Elmajdoub, Layla Omran, Kholoud Abdullah Emshihee, Fatma Muftah Abushiba, Sara Emhmmed Elzwawy, Mabrooka Muosa Abusahal, and Rowida Salem Aagme. "Prevalence and Morphological Identification of Digenean Trematode Species Recovered from Infected Organs of Lizardfish (Saurida undosquamis)." European Journal of Zoology 2, no. 2 (November 6, 2023): 1–6. http://dx.doi.org/10.24018/ejzoo.2023.2.2.26.
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Helminthic parasites of the marine fish (Saurida undosquamis) are investigated. Out of 192 specimens of the Saurida undosquamis were collected from the local market of Misurata city in Libya. The prevalence rate of Trematoda helminths in examined fish Saurida undosquamis, was high. Based on the morphological and morphometric characterization represented different species of Trematoda (Lecithochirium sp., Lecithochirium grandiporum, Aponurus laguncula, Neotorticaecum sp, Allocreadium sp, and Gonocerca sp.) was isolated of the total examined fish (185%, 96.4%) were infected with different species of Trematoda. The density of Trematoda was around 9390, and they were collected from the gills, stomach, and anterior and posterior parts of the intestine in all seasons, but Trematode infection was observed in the liver and muscles, the high-density rate in winter (4199), followed by autumn (3291), with non-significant differences between density rates in all seasons (P > 0.05). This study found a high infection rate with Lecithochirium sp. in the examined Saurida undosquamis.
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Chandra, Satish, and A. M. Saxena. "New digenetic trematode parasite Masenia lucknowensis sp. nov. (Trematoda: Maseniidae) from fresh water fishes of Uttar Pradesh (India)." Brazilian Journal of Biological Sciences 3, no. 5 (2016): 241. http://dx.doi.org/10.21472/bjbs.030523.
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Genus Masenia Chatterji, 1933 (Trematoda: Maseniidae Yamaguti, 1954) is one of the most important digenean trematode parasite with wide geographic distribution in the world. The purpose of the present study was to describe morphological and morphometrical characteristics of digenetic trematodes. The present study was carried out in fresh water fish fauna of River Gomti, Daliganj at Lucknow (26o 51' 30" N, 80o 56' 14" E). We have found that fresh water fishes heavily infected with various helminthes parasites. We have recovered large number of digenean parasites which belong to genus viz. Masenia Chatterji, 1933. During the survey (2012, Daliganj Lucknow) of fresh water digenetic trematode parasites, collected three different species of the genus Masenia, out of these one is new species, another are redescribed to show certain variation, the new parasite was obtain from the intestine of fish Mystus vittatus (Bloch, 1794) (Actinopterygii: Bagridae).
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Toledo, Rafael, and Bernard Fried. "Trematoda (flukes)." Emerging Topics in Life Sciences 1, no. 6 (December 22, 2017): 651–57. http://dx.doi.org/10.1042/etls20170111.
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The class Trematoda is the largest group of Platyhelminths and includes two subclasses: Aspidogastrea and Digenea. Trematodes, and particularly Digeneans, is a large group of organisms with significant medical and veterinary interest. Over 100 species of digenetic trematodes have been reported infecting humans. Although the significant mortality and morbidity that some of these infections cause, they are among the most neglected tropical diseases. Apart from their impact in public and animal health, the Digenea constitutes an intriguing group of organisms that has a vast interest in experimental biology. Systematics and taxonomy of this group constitute a challenge for biologists in relation to the difficulty entailed in the establishment of phylogenetic relationships between trematodes and the determination of valid diagnostic features. Moreover, their complex life cycles, using at least two hosts and alternating free-living and parasitic stages or sexual and asexual multiplication, constitute a paradigm of how organisms can evolve to become adapted to different biotic and abiotic environments to enhance survival. In this review, we briefly summarize the major features of trematodes in relation to both biological and medical areas.
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Serbina, E. "Larval trematodes in bithyniid snails (Gastropoda: Bithyniidae) in the lake-rivers systems from the steppe zone (The West Siberian Plain, Russia)." Helminthologia 51, no. 4 (December 1, 2014): 293–300. http://dx.doi.org/10.2478/s11687-014-0244-5.
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AbstractA survey of cercariae and metacercariae (Trematoda, Digenea) from bithyniid snails (Gastropoda: Bithyniidae) in lake-river systems in Northern Kulunda (of the steppe zone of the West Siberia Plain) is presented. The role of Bithynia tentaculata (Linne, 1758) and Bithynia troscheli (Paasch, 1842) as the first intermediate hosts and as the second intermediate hosts of trematodes in the study area was accomplished for the first time. Twelve species of cercariae (8 families) and 12 species of metacercariae (6 families) were found in bithyniid snails. Altogether, bithyniid snails were infected with 23 trematode species including 16 genera in 11 families. New Cercariae Holostephanus sp. and five original species of trematode metacercariae, were discovered in bithyniid snails of the steppe zone of the West Siberia Plain. The dominant cercariae were those of the families Prosthogonimidae and Lecithodendriidae. The most prevalent metacercariae were Echinoparyphium aconiatum Dietz, 1909 and E. recurvatum Linstow, 1873 (both family Echinostomatidae) and Cyathocotyle bithyniae Sudarikov, 1974 (Cyathocotylidae). B. troscheli infected by trematode parthenitae of Holostephanus sp. was detected in the Russia for the first time.
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Kudlai, O. "The Discovery of the Intermediate Host for the Trematode Moliniella anceps (Trematoda, Echinostomatidae) in Ukraine." Vestnik Zoologii 43, no. 4 (January 1, 2009): e-11-e-13. http://dx.doi.org/10.2478/v10058-009-0014-x.
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The Discovery of the Intermediate Host for the Trematode Moliniella anceps (Trematoda, Echinostomatidae) in Ukraine The freshwater molluscs Lymnaea stagnalis (Linnaeus, 1758) are first reported as intermediate hosts of the trematode Moliniella anceps (Molin, 1859) Hübner, 1939, the parasite of meadow birds (Rallidae), in Ukraine (Dneprodzerzhynsk Reservoir, Poltavska oblast). Description and figure of metacercariae are provided.
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Zhytova, O. "Cercaria of the Trematode Plagiorchis Mutationis (Trematoda, Plagiorchiidae) from the Pond Snails, Lymnaea Stagnalis, in Ukraine." Vestnik Zoologii 44, no. 4 (January 1, 2010): e-29-e-32. http://dx.doi.org/10.2478/v10058-010-0022-x.
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Cercaria of the Trematode Plagiorchis Mutationis (Trematoda, Plagiorchiidae) from the Pond Snails, Lymnaea Stagnalis, in Ukraine Morphological characteristics and measurements of Plagiorchis mutationis Panova, 1927 cercaria found for the first time in the intermediate host, pond snail Lymnaea stagnalis in Ukraine are given.
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Belousova, Yu V. "Early morphogenesis of metacercariae of trematodes Paratimonia sp. Prevot and Bartoli, 1967 in gastropods Hydrobia acuta (Draparnaud, 1805) in the Black Sea environment." Russian Journal of Parasitology 15, no. 1 (March 11, 2021): 11–15. http://dx.doi.org/10.31016/1998-8435-2021-15-1-11-15.
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The purpose of the research is studying the morphology of larvae of Trematoda Monorchiidae of the genus Paratimonia and establishing possible causes of their accelerated morphogenesis.Materials and methods. The material for this study was trematode larvae (metacercariae) from 283 specimens of gastropods Hydrobia acuta that we collected in March 2012 at the estuary of the River Chernaya (Sevastopol, the Black Sea, 44°27′49″ N 33°51′37″ E). The gastropods were studied for helminths using the compression method. Some of specimens of the found trematodes were studied alive and others were fixed in 70% ethyl alcohol and then stained with acetocarmine according to the standard method. The morphological features of metacercaria were studied on live larvae.Results and discussion. During helminthological research of gastropods Hydrobia, we recorded metacercariae of the family Monorchiidae. Non-encysted metacercariae were located freely in the host’s body cavity.
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Akhmetov, K. K., D. G. Maralbaeva, and A. V. Matsyura. "Distribution of trematodes in waterfowl of Pavlodar Oblast (Kazakhstan)." Ukrainian Journal of Ecology 10, no. 4 (August 10, 2020): 279–81. http://dx.doi.org/10.15421/2020_1983.
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The article presents the parasitological studies of Trematoda, collected by complete helminthological dissections of birds in the Pavlodar region of the Republic of Kazakhstan. In Pavlodar region, we have currently diagnosed among the Trematoda, the presence of 16 species belonging to four subgenera and seven families. We supposed that there is a local pest-spot of Prosthogonimidae and Echinistomatidae in the north-east of Kazakhstan, because we have found marites in young migratory birds. We noted that the pest-spot of Echinostomatidae and Echinistomatidae (in years with their registration) in the territory of Pavlodar region was broad enough, because the trematode marites of these families were registered from the birds, sampled at the geographically remote waterbodies. We revealed that the hotspots of Prosthogonimidae localization varied, which was most likely determined by the annual climatic conditions.
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Katokhin, A. V., and Yu M. Kornyychuk. "Genotyping of Black Sea trematodes of the family Opecoelidae by mitochondrial markers." Marine Biological Journal 5, no. 4 (December 30, 2020): 15–27. http://dx.doi.org/10.21072/mbj.2020.05.4.02.
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Opecoelidae Ozaki, 1925 (Trematoda: Opecoeloidea) is the biggest trematode family in the Black Sea in terms of species and genera number. Maritae of the most common Black Sea Opecoelidae trematodes are well described morphologically; nevertheless, information on their genomes structure is sketchy, and data on mitochondrial genomes are absent. The aim was to study the structure of mitochondrial genome fragments of Black Sea trematode species: Cainocreadium flesi Korniychuk & Gaevskaya, 2000, Gaevskajatrema perezi (Mathias, 1926) Gibson & Bray, 1982, and Helicometra fasciata (Rudolphi, 1819) Odhner, 1902. Sequences were made for CO1 (the cytochrome c oxidase subunit I) and 16S mitochondrial genes. To amplify CO1 gene fragment of Cainocreadium and Helicometra trematodes, primers were developed. Phylogenetic relationships within the analyzed part of the Opecoelidae family were reconstructed on the basis of our data and the corresponding GenBank data by the Maximum Likelihood estimation and the MEGA X programme. To root the phylogenetic trees, the corresponding sequences of the closely related trematode Brachycladium goliath (Brachycladioidea: Brachycladiidae) were used. For the first time, nucleotide sequences of CO1 and 16S mitochondrial genes fragments of Black Sea trematodes C. flesi, G. perezi, and H. fasciata from different definitive fish hosts were determined and deposited in the GenBank. In case of C. flesi, no host-specific lines were found in the structure of CO1 mitochondrial gene fragment, but high CO1 nucleotide diversity was noted. Black Sea H. fasciata, parasitizing peacock wrasse, Symphodus tinca, were revealed to be a host-specific CO1 haplogroup; its taxonomical status requires further clarification, and ecological and genetic studies of the putative H. fasciata species complex from different water areas are needed. No host-specific genetic lines were found when analyzing the sequences of H. fasciata 16S rRNA mitochondrial gene fragment. No significant differences in 16S fragment were registered between G. perezi trematodes from different Black Sea definitive hosts; however, the intraspecific 16S nucleotide diversity was rather high.
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Chikhlyaev, I. V., and A. I. Faizulin. "MATERIALS FOR THE HELMINTH FAUNA OF FIRE-BELLIED TOAD BOMBINA BOMBINA(LINNAEUS, 1761) (AMPHIBIA: ANURA)IN THE SARATOV REGION." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 24, no. 5 (2022): 21–27. http://dx.doi.org/10.37313/1990-5378-2022-24-5-21-27.
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For the fi rst time information on helminths of the Fire-bellied toad Bombina bombina (Linnaeus, 1761)from natural biocoenoses of in Saratov region is given. In 2012, 24 specimens of amphibians from the Medveditsa River fl oodplain in the vicinity of the Atkarsk city were examined by full helminthological autopsy. A total of 6 helminth species from two classes were registered: Trematoda (5) and Chromadorea (1). All helminth species for the given host are registered for the fi rst time in the studied region. A parasite specifi c to Bombina, the trematode Pneumonoeces variegatus abbreviatus (Rudolphi, 1819) [=Haematoloechus abbreviatus (Bychowsky, 1932)], was found. The helminth community structure is complex: biohelminthes (trematodes) dominate; nematodes are represented by a single species from the geohelminth group. High host infestation with metacercariae Tylodelphys excavata (Rudolphi, 1803) and Paralepoderma cloacicola (Luhe, 1909) is characteristic. Peculiarities of composition, structure and infestation of helminths are explained by peculiarities of biology, ecology and probably physiology of the host.
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Wolagole, Kristian, Kholik Kholik, Supriadi Supriadi, and Dina Oktaviana. "Distribusi Cacing Trematoda Saluran Pencernaan Katak Dari Berbabgai Lokasi Persawahan Di Kabupaten Lombok Timur." Mandalika Veterinary Journal 1, no. 1 (April 8, 2021): 7. http://dx.doi.org/10.33394/mvj.v1i1.3615.
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Trematode worms have been found in various types of frogs which cause disease in frogs or toads can be a reservoir for these worms. Lombok Island has many rice fields which are habitat for frogs. Frogs that live in this environment allow direct contact with various types of Trematodes. The purpose of this study was to determine the type and distribution of Trematoda worms found in the digestive tract of frogs in the rice fields of East Lombok Regency. A cross-sectional survey study using purposive sampling methods on frogs in three rice fields in East Lombok Regency was carried out in February 2020. Worms were collected from the digestive tract of frogs and fixed with 70% warm alcohol, cleaned with alcohol, and examined under a microscope. A total of 64 frog samples were taken in three rice fields, East Lombok Regency. A sample examination was carried out at the Equin Clinical Center Skill laboratory Faculty of Veterinary Medicine of Mandalika University of Education. The results showed that Mesocoelium spp was distributed among frogs in three rice fields in East Lombok Regency, with a prevalence of 45% in Pringgabaya Village, 50% in Suele Village, and 53.57% in Tanjung Teros Village.
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Saukhan, Ghiandra Naufal Syazily, Fadjar Satrija, Sri Murtini, Agik Suprayogi, Riki Siswandi, and R. Harry Soehartono. "Koinfeksi Fasciola dan Paramphistomum pada Kerbau Lumpur (Bubalus bubalis) di Kabupaten Sumba Timur." Acta VETERINARIA Indonesiana 11, no. 1 (March 30, 2023): 17–25. http://dx.doi.org/10.29244/avi.11.1.17-25.
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Kerbau lumpur (Bubalus bubalis) merupakan ternak yang memegang peranan dalam kehidupan ekonomi dan sosial masyarakat Kabupaten Sumba Timur. Salah satu penyakit yang hingga kini masih menjadi masalah kesehatan pada ternak, termasuk kerbau, adalah infeksi Trematoda. Penelitian ini bertujuan mengidentifikasi jenis cacing Trematoda yang menginfeksi serta mengukur prevalensi dan intensitas infeksinya. Metode filtrasi bertingkat digunakan untuk mendeteksi keberadaan Trematoda pada penelitian ini. Hasil pemeriksaan 105 sampel tinja kerbau asal Kabupaten Sumba Timur menunjukkan sebanyak 17/105 (16,19%) kerbau mengalami Trematodosis yang disebabkan oleh infeksi tunggal Fasciola gigantica (0,95%; rataan telur tiap gram tinja [TTGT] 1,00) dan Paramphistomum sp. (14,29%; rataan TTGT 2,26), serta infeksi campuran (koinfeksi) kedua Trematoda tersebut (0,95%; rataan TTGT 2,45). Prevalensi infeksi Trematoda kerbau betina (17,33%) ditemukan jauh lebih tinggi dibandingkan dengan kerbau jantan (13,33%). Umur dan jenis kelamin diketahui tidak berasosiasi nyata (p > 0,05) dengan kejadian dalam penelitian ini. Intensitas infeksi Trematoda pada penelitian ini dikategorikan ringan, dengan rataan geometrik 2,18 TTGT. Temuan ini menunjukkan bahwa kerbau lumpur di Kabupaten Sumba Timur terinfeksi oleh cacing Trematoda, sehingga diperlukan upaya pengendalian untuk mencegah kerugian akibat infeksi tersebut.
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Chikhlyaev, Igor V., and Alexander B. Ruchin. "An Overview of the Helminths of Moor Frog Rana arvalis Nilsson, 1842 (Amphibia: Anura) in the Volga Basin." Diversity 13, no. 2 (February 4, 2021): 61. http://dx.doi.org/10.3390/d13020061.
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This is the first review of the helminth fauna of the moor frog Rana arvalis Nilsson, 1842 from the Volga river basin (Russia). The article summarizes the authors’ and literature data on the helminthic fauna of this species. The method of complete helminthological dissection was used. Thirthy-eight helminth species were recorded from three classes: Cestoda (1), Trematoda (28), and Chromadorea (9). Nine helminth species are new to the moor frog in Russia: trematodes Gorgodera varsoviensis Sinitzin, 1905, Strigea falconis Szidat, 1928, larvae, Neodiplostomum spathoides Dubois, 1937, larvae, Tylodelphys excavata (Rudolphi, 1803), larvae, Pharyngostomum cordatum (Diesing, 1850), larvae, Astiotrema monticelli Stossich, 1904, larvae and Encyclometra colubrimurorum (Rudolphi, 1819), larvae, nematodes Strongyloides spiralis Grabda-Kazubska, 1978 and Icosiella neglecta (Diesing, 1851). The cestode Spirometra erinacei (Rudolphi, 1918), larvae were observed of this amphibian species in the Volga basin for the first time. The nematodes Rhabdias bufonis, Oswaldocruzia filiformis, Cosmocerca ornata and the trematode Haplometra cylindracea form the core of the helminth fauna of the moor frog. Information on species of helminths includes systematic position, localization, areas of detection, type and scheme of life cycle, geographical distribution, and degree of specificity to host amphibians.
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Wu, Yuan-An, Jin-Wei Gao, Xiao-Fei Cheng, Min Xie, Xi-Ping Yuan, Dong Liu, and Rui Song. "Characterization and comparative analysis of the complete mitochondrial genome of Azygia hwangtsiyui Tsin, 1933 (Digenea), the first for a member of the family Azygiidae." ZooKeys 945 (July 2, 2020): 1–16. http://dx.doi.org/10.3897/zookeys.945.49681.
Full textAbstract:
Azygia hwangtsiyui (Trematoda, Azygiidae), a neglected parasite of predatory fishes, is little-known in terms of its molecular epidemiology, population ecology and phylogenetic study. In the present study, the complete mitochondrial genome of A. hwangtsiyui was sequenced and characterized: it is a 13,973 bp circular DNA molecule and encodes 36 genes (12 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes) as well as two non-coding regions. The A+T content of the A. hwangtsiyui mitogenome is 59.6% and displays a remarkable bias in nucleotide composition with a negative AT skew (–0.437) and a positive GC skew (0.408). Phylogenetic analysis based on concatenated amino acid sequences of twelve protein-coding genes reveals that A. hwangtsiyui is placed in a separate clade, suggesting that it has no close relationship with any other trematode family. This is the first characterization of the A. hwangtsiyui mitogenome, and the first reported mitogenome of the family Azygiidae. These novel datasets of the A. hwangtsiyui mt genome represent a meaningful resource for the development of mitochondrial markers for the identification, diagnostics, taxonomy, homology and phylogenetic relationships of trematodes.
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Ensuncho Hoyos, Carlos Federico, Yonairo Manuel Herrera Benavides, and Óscar David Vergara Garay. "Primer registro de Typhlocoelum cucumerinum (Trematoda: Typhlocoelidae) en Cairina moschata domestica (aves: Anatidae) en Colombia." Revista de Medicina Veterinaria, no. 33 (November 30, 2016): 35–41. http://dx.doi.org/10.19052/mv.4049.
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En el presente estudio se registra por primera vez para Colombia el trematodo Typhlocoelum cucumerinum (Rudolphi, 1809) en el pato criollo doméstico (Cairina moschata domestica). Se colectaron un total de 210 trematodos en 42 individuos adultos, 26 machos y 16 hembras. Se encontró una frecuencia parasitaria del 57,14 % y una intensidad parasitaria promedio de 8,75 parásitos por animal. Los resultados obtenidos demuestran la presencia del trematodo en ecosistemas acuáticos del departamento de Córdoba, Colombia.
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Spellman, Susan J., and Allen D. Johnson. "In vitro excystment of the black spot trematode Uvulifer ambloplitis (Trematoda : Diplostomatidae)." International Journal for Parasitology 17, no. 4 (April 1987): 897–902. http://dx.doi.org/10.1016/0020-7519(87)90005-1.
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Shakarbaev, Akramova, and Azimov. "The Taxonomic Survey of the Cercarial Fauna (Platyhelminthes, Trematoda) in the Molluscs of Uzbekistan." Zoodiversity 54, no. 6 (2020): 505–22. http://dx.doi.org/10.15407/zoo2020.06.505.
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The article provides a list of trematodes cercariae found in the molluscs of Uzbekistan based on the analysis and generalisation of well-known data published in the period between 1934 and 2019. Currently, the list comprises 50 trematode species belonging to 38 genera, 22 families of trematodes, the adult forms of which parasitise vertebrates (fish, amphibians, birds and mammals), including the human being. The cercariae were discovered in 38 mollusc species belonging to Gastropoda and Bivalvia. The discovered larvae comprised 12 morphotype groups of cercariae.
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Akramova, F., U. Shakarbaev, and D. Azimov. "Melanoides kainarensis — new intermediate host of trematodes Philophthalmus lucipetus (Trematoda, Philophthalmidae)." Russian Journal of Parasitology 3, no. 2 (January 27, 2017): 183–91. http://dx.doi.org/10.12737/20061.
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Akramova, F. D., U. A. Shakarbaev, A. U. Mirzaeva, S. O. Saidova, Z. M. Yorkulov, J. K. Ubbiniyazova, D. A. Paluaniyazova, et al. "Larvae of helminths of molluscs and insects in Karakalpakstan." Biosystems Diversity 32, no. 1 (January 18, 2024): 83–98. http://dx.doi.org/10.15421/012408.
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The work discusses some issues related to the species diversity of helminth larvae developing in the body of freshwater molluscs and insects distributed in the territory of Karakalpakstan, a vast region in Uzbekistan. A total of 42 species of parasites in larval form were identified in the region; 27 species were recorded in aquatic molluscs and 15 species in insects. 29 species were recorded for the first time in Karakalpakstan. We established that the class Gastropoda in the water bodies of Karakalpakstan is represented by 17 species; 9 of them belong to the family Lymnaeidae, 6 species to Planorbidae and 2 to Physidae. 3,477 mollusс individuals of 11 species were infected with larval stages of trematodes. The prevalence of infection in Lymnaeidae (Radix and Lymnaea) ranged from 1.7% to 25.5%. A similar prevalence was recorded in Planorbidae (1.6–25.4%). Physa fontinalis showed a prevalence of infection of 1.3%. 27 species of parasites in cercarial forms were identified in molluscs. The largest number of cercariae of trematode species was found in molluscs from the family Lymnaeidae (14 species). They were followed by representatives of Planorbidae (12 species). The fauna of cercariae identified in molluscs from water bodies in Karakalpakstan was from 12 families of trematodes. The most common were the cercariae of those species of trematodes that complete their life cycle in wetland birds (20 species). Cercariae of 6 species of trematodes turned out to be parasites of mammals, mainly ungulates. 1 species of trematodes in a larval stage was recorded in each of the fish and amphibian groups. The richest species composition in the studied region was shown by trematode cercariae representing Schistosomatidae (6 species), which were followed by Echinostomatidae (4 species). Cercariae of other trematode families were represented by one, two and three species. It was established that the studied molluscs do not play an equal role as intermediate hosts of trematodes. The richest species composition was shown by populations of Radix auricularia (14 species), Planorbis planorbis (12 species), Anisus spirorbis (9 species), and Lymnaea stagnalis (5 species). Populations of L. bactriana, Pl. tangitarensis were infected by only one species. The prevalence recorded in the studied insects infected with helminth larvae ranged widely from 1.1% to 14.4%. The identified larvae turned out to be representatives of Cestoda (3 species), Trematoda (1 species) and Nematoda (11 species). The largest number of species (4) of helminth larvae were found in beetles from the family Scarabaeidae – Gongylonema pulchrum, Spirura rytipleurites, Choanataenia infundibulum and Echinolepis carioca, and mosquitoes – Dirofilaria immitis, D. repens, Dipetalonema ewansi and Setaria labiatopapillosa. 2 species were recorded in flies – Stephamofilaria stilesi and Parabronema skrjabini. The recorded species belong to the classes Nematoda and Cestoda. The intensity of infection ranged from single to 11–17 individuals. The work provides original data on the morphology and biology of the larvae of the studied mollusсs infected with cercariae of trematodes and insects with metacercariae of trematodes, cysticercoids of cestodes and larvae of nematodes, and presents the structure of communities of larval forms of parasitic worms.
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Boyko, A. A. "Helmintofauna of sheep and goats in Dnipropetrovsk region." Visnyk of Dnipropetrovsk University. Biology, medicine 6, no. 2 (August 25, 2015): 87–92. http://dx.doi.org/10.15421/021516.
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Wormsof classes Nematoda Rudolphi, 1808, Trematoda Rudolphi, 1808 and Cestoda Rudolphi, 1808 were registered in small ruminants (sheep and goats) in Dnipropetrovsk region. Identified nematodes belongto Strongylata Railliet et Henry, 1913, Rhabditata Chitwood, 1933 and Trichurata Skrjabin, 1915. Among the trematodes, representatives of Fasciolata (Skrjabin et Schulz, 1935) were identified. Cestodes were represented by Anoplocephalata (Skrjabin, 1933). Among the specific types of nematodes,representatives of the Strongylata suborder were found: Muellerius sp., Protostrongylus sp., Haemonchus contortus Rundolphi, 1802, Nematodirus sp. Among the helminths Rhabditata we identified Strongyloides papillosus Wedl, 1856, Trichurata –Trichuris sp., Fasciolata –Fasciola hepatica Linnaeus, 1758 andDicrocelium lanceatum Stiles et Hassall, 1896, Anoplocephalata –Moniezia expansa (Rudolphi, 1810) andM. benedeni (Moniez, 1879). The dominant species among worms in ungulates was defined as nematode H. contortus. The smallest share in the group was taken by trematode species F. hepatica and nematodesTrichuris sp. The highest biodiversity indices are recorded in samples of material selected from ungulates consuming pasture herbage from May to September (ten species of worms belonging to three classes:Muellerius sp., Protostrongylus sp., H. contortus, Nematodirus sp., S. papillosus, Trichuris sp., F. hepatica, D. lanceatum, M. expansa, M. benedeni were registered). In animals not pastured throughout the year three types of worms of the class Nematoda: S. papillosus, H. contortus and Nematodirus sp. were defined.
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Nwadike, C. C., P. C. O. Ilozumba, E. C. Amaechi, O. A. Okeke, I. O. Nnatuanya,, J. J. Okeke, P. I. Afoemezie, and N. P. Udeh,. "Prevalence of helminth parasites in some commercially important fish species of River Anambra, Nigeria." Zoologist (The) 22, no. 1 (March 11, 2024): 46–52. http://dx.doi.org/10.4314/tzool.v22i1.7.
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The demand for fish as a source of protein is on the increase. However, sustainable productivity by fish farmers is constrained by parasitic infections. Thus, an investigation was conducted on the prevalence of helminth parasites in some commercially important fish species of River Anambra, Nigeria. A total of 521 fishes belonging to 6 families (Claroteidae, Synodontidae, Mormyridae, Osteoglossidae, Bagridae, and Clariidae) and 20 species caught with hooks, nets, and local traps were examined using standard parasitological techniques. The overall prevalence was 23.80%. Fish samples belonging to 6 families had the following prevalence of infection: Bagridae (0.00%), Clariidae (2.11 %), Claroteidae (1.53%), Mormyridae (0.0%), Osteoglossidae (14.97%) and Synodontidae (5.18%). Helminth parasites recovered were: Weyonia species (4.65%), Weyonia youdeowii (15.97%), Weyonia synodontis (3.33%), Sandonella sandoni (37.41%), Polyonchobothrium clarias (17.98 %), Plerocercoid larva (13.33%) and unidentified cestode (35.47%) (Cestoda); Emoleptalea species (4.65%) (Trematoda); Procamallanus laeviconchus (2.72%), Dujardinascaris species (1.36%), Spirocamallanus species (3.99%) (Nematoda); Neoechinorhynchus species (24.61%), Tenuisentis niloticus (34.62%) and unidentified acanthocephalan (6.25%) (Acanthocephala). Weyonia species, Weyonia youdeoweii, and W. synodontis were recovered from synodontids only. Acanthocephalan, cestodes, nematodes and trematodes were found in decreasing order of abundance. The presence of trematode Emoleptalea sp in Clarias gariepinus is a new host record of the parasite for the geographical area.
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Izrailskaia, Anna V., Vladimir V. Besprozvannykh, and Michael Yu Shchelkanov. "Diplostomum cf. vanelli Yamaguti, 1935 (Trematoda: Diplostomidae Poirier, 1886): Morpho-Molecular Data and Life Cycle." Diversity 16, no. 5 (May 10, 2024): 286. http://dx.doi.org/10.3390/d16050286.
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Furcocercariae, of the trematodes from the family Diplostomidae, were found in freshwater snails—Radix auricularia, which were collected in a reservoir located on Popov Island (Peter the Great Bay, Sea of Japan). The life cycle was experimentally reproduced for the first time, while morphometric data for the development stages were studied and described for the newly discovered trematode. Moreover, molecular data for nuclear and mitochondrial markers were also obtained. It was determined that the morphometric characteristics of the trematode coincided with the species Diplostomum cf. vanelli, the molecular data analysis validates the species independence. Furthermore, the study highlights the issue of species identification in the Diplostomum genus.
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Chikhlyaev, I. V., and A. B. Ruchin. "An overview of helminths of the European fire-bellied toad Bombina bombina (Amphi-bia, Anura) in the Volga River Basin." Biosystems Diversity 29, no. 4 (November 25, 2021): 407–14. http://dx.doi.org/10.15421/012152.
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The helminthofauna of Bombina bombina (Linnaeus, 1761) has been studied to an unequal degree in different parts of the habitat. Thus, it has been studied in more detail in the west of its range (in the countries of central and eastern Europe) and in less detail in the center (in Belarus and Ukraine). There were few data on helminths of this host in the east of its range (in Russia). For the first time, an inventory of the helminthofauna in B. bombina was carried out for populations in the Volga River Basin. The results of our own research are presented and supplemented with information from other authors. We summarized scattered data on helminths from 390 specimens of amphibians collected over more than 40 years in the territory of five regions: Kaluga and Samara regions, the Republics of Mordovia, Tatarstan and Bashkortostan. The helminthofauna includes 21 species from three classes: Trematoda (15), Chromadorea (5) and Clitellata (1). For each species, we give the systematic position, localization, places of detection, geographical distribution and characteristics of the life cycle. The leech Helobdella stagnalis (Linnaeus, 1758) was first recorded in the European fire-bellied toad in Europe. Four species of trematodes are new to this amphibian species in Russia: Haematoloechus abbreviatus (Bychowsky, 1932), Paralepoderma cloacicola (Luhe, 1909), larvae, Tylodelphys excavata (Rudolphi, 1803), larvae and Astiotrema monticelli (Stossich, 1904), larvae. Another species of trematode – Strigea strigis (Schrank, 1788), larvae – was first recorded in this host within the boundaries of the Volga Basin. A specific parasite is the trematode Haematoloechus abbreviatus (Bychowsky, 1932). The number and composition of the species of helminths of the European fire-bellied toad vary in different regions; the structure of the helminth fauna is generally stable and includes three groups of species: adult and larval stages of trematodes, adult nematodes-geohelminths. The results of the study create a database for further population studies and contribute to the development of ideas about the distribution and formation of the amphibian helminth fauna in Europe, Russia and the Volga Basin.
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Chikhlyaev, I. V., and A. B. Ruchin. "An overview of helminths of the European fire-bellied toad Bombina bombina (Amphi-bia, Anura) in the Volga River Basin." Biosystems Diversity 29, no. 4 (November 25, 2021): 407–14. http://dx.doi.org/10.15421/10.15421/012152.
Full textAbstract:
The helminthofauna of Bombina bombina (Linnaeus, 1761) has been studied to an unequal degree in different parts of the habitat. Thus, it has been studied in more detail in the west of its range (in the countries of central and eastern Europe) and in less detail in the center (in Belarus and Ukraine). There were few data on helminths of this host in the east of its range (in Russia). For the first time, an inventory of the helminthofauna in B. bombina was carried out for populations in the Volga River Basin. The results of our own research are presented and supplemented with information from other authors. We summarized scattered data on helminths from 390 specimens of amphibians collected over more than 40 years in the territory of five regions: Kaluga and Samara regions, the Republics of Mordovia, Tatarstan and Bashkortostan. The helminthofauna includes 21 species from three classes: Trematoda (15), Chromadorea (5) and Clitellata (1). For each species, we give the systematic position, localization, places of detection, geographical distribution and characteristics of the life cycle. The leech Helobdella stagnalis (Linnaeus, 1758) was first recorded in the European fire-bellied toad in Europe. Four species of trematodes are new to this amphibian species in Russia: Haematoloechus abbreviatus (Bychowsky, 1932), Paralepoderma cloacicola (Luhe, 1909), larvae, Tylodelphys excavata (Rudolphi, 1803), larvae and Astiotrema monticelli (Stossich, 1904), larvae. Another species of trematode – Strigea strigis (Schrank, 1788), larvae – was first recorded in this host within the boundaries of the Volga Basin. A specific parasite is the trematode Haematoloechus abbreviatus (Bychowsky, 1932). The number and composition of the species of helminths of the European fire-bellied toad vary in different regions; the structure of the helminth fauna is generally stable and includes three groups of species: adult and larval stages of trematodes, adult nematodes-geohelminths. The results of the study create a database for further population studies and contribute to the development of ideas about the distribution and formation of the amphibian helminth fauna in Europe, Russia and the Volga Basin.
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Belousova, Yu V. "Life Cycle of the Trematode Gynaecotyla adunca (Trematoda: Microphallidae) in the Black Sea." Biology Bulletin 48, no. 5 (September 2021): 561–68. http://dx.doi.org/10.1134/s1062359021050058.
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Belousova, Y. V. "Life Cycle of the Trematode Maritrema misenense (Trematoda: Microphallidae) in the Black Sea." Biology Bulletin 49, no. 5 (October 2022): 485–90. http://dx.doi.org/10.1134/s1062359022050041.
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Шакарбаев, U. Shakarbaev, Гаипова, M. Gaipova, Акрамова, F. Akramova, Сапаров, K. Saparov, Азимов, and D. Azimov. "Fauna and ecology of helminths in cattle (Bos taurus Dom.)." Russian Journal of Parasitology 3, no. 4 (December 25, 2016): 447–53. http://dx.doi.org/10.12737/23068.
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Objective of research: The purpose of research is to study the fauna and ecology of helminths in cattle from Central Uzbekistan. Material and methods. The cattle was investigated by the method of complete and incomplete helminthological autopsies. Cestodes, trematodes and nematodes were examined using the common methods. Larvae of trematodes and nematodes from dominant parasite species found in intermediate hosts (molluscs, insects, ants and dipterous) are also described in this paper. Results and discussion: 32 helminth species were identified in cattle from the central region of Uzbekistan: 5 species belong to the class Cestoda, 6 species — to the class Trematoda and 21 species — to the class Nematoda. Based on the nature of helminth localization in the host body, three groups of parasite communities were detected.
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Muller, Ralph. "Keys to the trematoda." Transactions of the Royal Society of Tropical Medicine and Hygiene 97, no. 1 (January 2003): 124. http://dx.doi.org/10.1016/s0035-9203(03)90052-6.
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Munawaroh, Alisa Qudrotun, Endry Nugroho Prasetyo, and Maharani Pertiwi Koentjoro. "A literature review: The comparison of the sedimentation and flotation technique for Fasciola hepatica detection in livestok." Jurnal Litbang Edusaintech 2, no. 2 (December 31, 2021): 79–85. http://dx.doi.org/10.51402/jle.v2i2.21.
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Fascioliasis is an infection of the trematodes of Fasciola hepatica and Fasciola gigantica which causes disease worldwide. This trematode infection commonly attacks ruminants, especially in cattle, buffalo, sheep, goats, pigs and humans, as well. This disease can cause significant economic losses in the livestock industry, mainly through death, liver damage, reduced production of meat, milk and wool, and expenses for deworming. Parasitological examination for identification of fasciola infection was carried out by visually observing fecal samples for adult worms and then examined by simple flotation (using saturated NaCl solution) and formalin-ethyl acetate sedimentation techniques. Here, we were systematically reviewed existing knowledge about sensitive and efficient fasciola observation methods for the identification of fasciola species. Four databases of articles that met the inclusion requirements were compiled for the literature review. This article was published between 2015-2020 and reports on the identification of fasciola species using one or a combination of sedimentation and flotation methods. As a result, the combined method of sedimentation and flotation has the best sensitivity and egg recovery rate (Ef) values for fasciola identification. Abstrak Fascioliasis merupakan infeksi trematoda spesies Fasciola hepatica dan Fasciola gigantica yang menimbulkan penyakit di seluruh dunia. Infeksi trematoda ini umum menyerang ruminansia, terutama pada sapi, kerbau, domba, kambing, babi dan bisa terjadi pada manusia. Penyakit ini dapat menimbulkan kerugian ekonomi yang cukup besar dalam industri ternak, terutama melalui kematian, kerusakan hati, berkurangnya produksi daging, susu, dan wol, dan pengeluaran biaya untuk obat cacing. Pemeriksaan parasitologi untuk identifikasi infeksi fasciola dilakukan dengan mengamati sampel feses secara visual untuk cacing dewasa dan kemudian diperiksa dengan cara flotasi sederhana (menggunakan larutan NaCl jenuh) dan teknik sedimentasi formalin-etil asetat. Disini, kami meninjau secara sistematis pengetahuan yang ada tentang metode pengamatan fasciola yang sensitif dan efisien dalam identifikasi spesies fascioal. Empat data base artikel yang telah memenuhi syarat inklusi disusun untuk tinjauan literature review. Artikel ini terbit antara tahun 2015-2020 dan melaporkan identifikasi spesies fasciola menggunakan salah satu atau gabungan metode sedimentasi dan flotasi. Hasilnya, metode gabungan antara sedimentasi dan flotasi memiliki nilai sensitivitas dan nilai tingkat pemulihan telur (egg recovery rate, Ef) paling baik untuk identifikasi fasciola.
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Abalihin, Krjuchkova, and Sokolov. "THE CURRENT SITUATION ANALYSIS AT THE PARASITE FAUNA OF SEMI-AQUATIC CARNIVORES OF THE WEASEL FAMILY IN THE CENTRAL REGION OF THE RUSSIAN FEDERATION." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 20 (May 14, 2019): 31–35. http://dx.doi.org/10.31016/978-5-9902340-8-6.2019.20.31-35.
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Most members of the Mustelidae family living in the Central Non-Black Earth Region of Russia are the objects of sport and commercial hunting. Some of them are bred in fur farms (mink, polecat) and kept at home as decorative animals. The close contact of a person with various members of the family of mustelids, which increase with the development of urbanization processes, makes significant role of mustelids as sources of dangerous invasions for humans and animals (trichinosis, echinococcosis, etc.). We examined 48 ferrets, 107 American minks, 25 European minks, and 11 otters in order to determine the species composition of animal parasites, in the period 2000–2018. They were examined according to methods commonly used in parasitology about muscle tissue, internal organs, and thoracic and abdominal cavity. Animals for research were obtained from hunters from the Central region of the Russian Federation. Studies have shown that ferrets are invased with 8 species of parasites belonging to two classes: Trematoda (3 species) and Nematoda (5 species). The parasitic fauna of the minks was represented by 15 species of worms: Trematoda (2 species), Cestoda (1 species), Nematoda (12 species). The American mink is infested with 14 helminth species and the European mink with 11 species. Otters were infested with 2 classes of parasites: Trematoda (1 species) and Nematoda (1 species). We explain the high contamination of ferrets and minks of E. perfoliatus by the constant presence of animals at the reservoirs where the intermediate owners of helminths (fish) live. Also, a significant proportion in the diet of many species of weasels are tailless amphibians (frogs), which explains the infection of semi-aquatic animals with an unusual species of trematodes Alaria alata (larvae).
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PINTO, HUDSON ALVES, and ALAN LANE DE MELO. "A checklist of trematodes (Platyhelminthes) transmitted by Melanoides tuberculata (Mollusca: Thiaridae)." Zootaxa 2799, no. 1 (March 24, 2011): 15. http://dx.doi.org/10.11646/zootaxa.2799.1.2.
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A list of species of Trematoda (flukes) transmitted by Melanoides tuberculata (Müller, 1774) is presented based on 136 articles published between 1896 and 2010. This snail species has been reported as an intermediate host for flukes belonging to 17 families, 25 genera and 37 species, including 11 trematodes reported as adults from man. The greatest proportion of the associations between M. tuberculata and flukes has been recorded in Asia and Africa; three species are considered to be invasive in the Americas. In addition, another 81 larval trematodes found in M. tuberculata have been described under generic collective group Cercaria Müller, 1773, but have not yet been associated with the respective adult parasites. Studies in which the larvae found in M. tuberculata have only been grouped into eight cercarian groups are also listed.
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Chikhlyaev, I. V., and A. I. Faizulin. "HELMINTH FAUNA OF TAILLESS AMPHIBIANS (AMPHIBIA: ANURA) OF THE USA RIVER BASIN." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 25, no. 5 (2023): 88–98. http://dx.doi.org/10.37313/1990-5378-2023-25-5-88-98.
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For the fi rst time data on the composition and structure of helminth fauna and the degree of helminth infection of amphibians of the Usa River basin, Samara region, are summarised. In the period from 1999 to 2023, 100 specimens of 4 species of tailless amphibians were examined by the method of complete helminthological autopsy: Pelophylax ridibundus, Rana arvalis, R. temporaria and Pelobates vespertinus. Twenty-one species of helminths of two classes, Trematoda (17) and Chromadorea (4), were recorded. The helminthofauna of Pelophylax ridibundus is the richest (20 species), the “core” of which consists of fi ve trematode species: Skrjabinoeces similis, Opisthioglyphe ranae, Pleurogenes claviger, Pleurogenoides medians and Prosotocus confusus. The helminthofauna of Pelobates vespertinus (5 species), Rana arvalis and R. temporaria (1 each) is impoverished. The structure of the helminthofauna and peculiarities of infection by certain trematode species are of “river” character and are similar to those in the fl oodplain of the Sok River. On the coast of the Usinsky Bay, Pelobates vespertinus has a pathogenic trematode species Alaria alata (Goeze, 1782), which is the causative agent of alariasis, a dangerous helminthiasis of domestic and wild carnivores.
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Lía I., Lunaschi. "Redescripción y reubicación sistemática del trematodo Topsiturvitrema verticalia (Trematoda: Digenea) en una familia nueva." Revista de Biología Tropical 54, no. 3 (March 19, 2014): 1041. http://dx.doi.org/10.15517/rbt.v54i3.13966.
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Ualiyeva, Rimma Meyramovna, Kanat Kombarovich Akhmetov, Indira Bulatovna Altayeva, and Alexey Vasilyevich Surov. "Peculiarities of the Structure of Male Reproductive System in Trematode Parastrigea Robusta (Trematoda: Strigeidae)." OnLine Journal of Biological Sciences 17, no. 2 (February 1, 2017): 88–94. http://dx.doi.org/10.3844/ojbsci.2017.88.94.
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Jensen, K. Thomas, Nora Fernández Castro, and Guy Bachelet. "Infectivity of Himasthla spp. (Trematoda) in cockle (Cerastoderma edule) spat." Journal of the Marine Biological Association of the United Kingdom 79, no. 2 (April 1999): 265–71. http://dx.doi.org/10.1017/s0025315498000290.
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The common cockle Cerastoderma edule is intermediate host to several species of digenean trematodes. However, little is known about the factors influencing the settlement of trematode larvae in cockles as well as their effects on the host. Aspects of the transmission ecology, behaviour and effects on juvenile host specimens of trematode larvae belonging to the genus Himasthla and utilizing mudsnails Hydrobia ulvae as their first intermediate host and various waterbirds as their definitive host have been studied. Cercariae of Himasthla spp. (more than 90% of the metacercariae were identified as H. continua post-experimentally) exhibited a host size-dependent selection within the host size range from 2 to 6 mm. Infection efficiency was reduced by the presence of substratum allowing cockles to burrow, suggesting that the foot and visceral region may be attacked by cercariae. No increased mortality due to parasite infections could be demonstrated within 5 d after infestation. The metacercariae within experimentally infected cockles were primarily located in the connective tissue within the foot and visceral region. Although some cockles were completely filled with metacercariae only small functional effects were detected, such as a slightly prolonged burrowing time of infected specimens.
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Satyawardana, Wirokartiko, Yusuf Ridwan, and Fadjar Satrija. "Trematodosis pada Sapi Potong di Wilayah Sentra Peternakan Rakyat (SPR) Kecamatan Kasiman, Kabupaten Bojonegoro." Acta VETERINARIA Indonesiana 6, no. 2 (December 31, 2018): 1–7. http://dx.doi.org/10.29244/avi.6.2.1-7.
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Trematodosis pada sapi adalah penyakit penting yang disebabkan oleh trematoda yang mengakibatkan kerugian ekonomi yang tinggi pada peternakan sapi potong dan sapi perah. Studi cross sectional dilakukan untuk menentukan prevalensi dan faktor risiko trematodosis pada sapi potong yang dilaksanakan dari bulan Agustus 2014 sampai bulan Maret 2015 di Kecamatan Kasiman Kabupaten Bojonegoro. Sebanyak 533 sampel tinja secara acak diambil dari peternakan sapi potong tradisional. Sampel diperiksa untuk keberadaan telur trematoda dengan metode modifikasi filtrasi dan sedimentasi. Prevalensi trematodosis dihubungkan dengan kategori musim, umur, jenis kelamin, pola pemeliharaan dan padang penggembalaan yang dianalisis statistik dengan uji Chi-square. Hasil menunjukkan bahwa ditemukan telur trematoda pada 12 (2.25%) sampel. Spesies trematoda yang menginfeksi dengan prevalensi tertinggi adalah Paramphistome (1.31%) dan rataan ukuran telur terbesar adalah Fasciola sp. Berdasarkan pada kategori di atas, prevalensi tertinggi ditemukan pada musim hujan, sapi betina dengan umur lebih dari 2 tahun, digembalakan di padang penggembalaan sebelah Timur dengan nilai masing-masing 2.59%; 3.1%; 2.68%; 2.71% dan 5.49%. Perbedaan signifikan (P<0.05) hanya ditemukan pada tingkat prevalensi kategori lokasi padang penggembalaan
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Sokolov, S. G., and I. I. Gordeev. "New data on trematodes (Plathelminthes, Trematoda) of fishes in the Ross Sea (Antarctic)." Invertebrate Zoology 10, no. 1 (December 2013): 255–67. http://dx.doi.org/10.15298/invertzool.10.2.04.
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Goncharov, S., and N. Soroka. "Exprerimental infection of laboratory rats with metacercaria of trematodes Paracoenogonimus ovatus (Trematoda, Cyathocotylidae)." Animal Biology 18, no. 1 (March 2016): 17–21. http://dx.doi.org/10.15407/animbiol18.01.017.
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Binoti, E., M. C. Gomes, A. De Calais Junior, M. R. Werneck, I. V. F. Martins, and J. N. Boeloni. "Helminth fauna of Chelonia mydas (Linnaeus, 1758) in the south of Espírito Santo State in Brasil." Helminthologia 53, no. 2 (June 1, 2016): 195–99. http://dx.doi.org/10.1515/helmin-2016-0012.
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SummaryDue to an inadequate knowledge about threats to the sea turtle, we aimed to evaluate the helminth fauna of Chelonia mydas which had died on the southern coast of Espirito Santo, Brasil and described the associated tissue pathological lesions. Retrospective and prospective studies on turtle parasites were conducted and tissues samples were collected. 106 of 212 of sea turtles (50 %) were parasitized, and 47 of 106 of infected animals 43.0 % (47/106) were in poor health condition. Seven trematoda families covering 19 different helminths species were identified. Turtles were inhabited with one or more species of parasites, and there was no significant association between parasitism and weakness of the animals. Trematode eggs, with or without giant cells in tissues of various organs were observed.
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Kabata, Z., G. A. McFarlane, and D. J. Whitaker. "Trematoda of sablefish, Anoplopoma fimbria (Pallas, 1811), as possible biological tags for stock identification." Canadian Journal of Zoology 66, no. 1 (January 1, 1988): 195–200. http://dx.doi.org/10.1139/z88-027.
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A total of 419 sablefish (Anoplopoma fimbria) was collected from 13 locations off Canada's west coast. Eleven of the stations were located on or near the continental slope, and two were located on seamounts. The fish were examined for prevalence and intensity of trematodes to determine the suitability of using these parasites as biological tags. The trematode fauna from the seamount sablefish was significantly different from that of slope sablefish, indicating that the seamount fish are distinct and separate stocks. Development of localized fisheries on these stocks could provide a significant yield to Canadian fishermen.
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Pavluchenko, O. V., and T. V. Yermoshyna. "Parasites of unionid molluscs (Bivalvia, Unionidae) and their effect on the body of molluscs." Regulatory Mechanisms in Biosystems 8, no. 4 (October 25, 2017): 482–88. http://dx.doi.org/10.15421/021774.
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Among the molluscs of the family Unionidae extensivity of infestation by the helminth Aspidogaster conchicola (Trematoda, Aspidogastridae) is the highest in Unio tumidus and Anodonta anatina, and the lowest – in U. pictorum. The mites of the genus Unionicola (Arachnida, Unionicolidae) occur more often in species of the genus Anodonta and Pseudanodonta complanata than in species of Unio. The larvae of trematodes Bucephalus polymorphus (Trematoda, Bucephalidae) are more often identified in species of the genus Anodonta. The intensity of invasion of molluscs by the helminth A. conchicola was 1.0–5.6 ind./ind. (Unio – 1.0–3.3, Pseudanodonta – 3.0–5.6, Anodonta – 1.3–4.0 ind.), by the water mites Unionicola – 1–69 ind./ind. (Unio, Pseudanodonta – 1–11, Anodonta – 1–69). Due to the influence of aspidogastreans, the cytoplasmic vacuolization and hypertrophy of the cells of the pericardial epithelium and the layer of connective tissue was observed, which leads to a shrinkage of the upper side of the pericardium. Often, there was a nuclear pyknosis and, with deeper violations, their karyorrhexis and karyolysis. In the layer of connective tissue of pericardium of A. anatina encapsulated larvae of aspidogastereans were found. An increase in the cardiac index was observed in molluscs infested by aspidogastreans: the change in the index was the smallest in U. crassus (at 11.5%) and the largest in U. tumidus (at 54.1–61.0%). Smaller cardiac indexes are typical for molluscs with a lower intensity of infestation by aspidogastreans. Moderate intensity of infestation by this helminth (6–10 ind./ind.) caused an increase in the heart rate in molluscs (18.6–29.6%), high intensity (>10 ind./ind.) caused the decreasing of this indicator (14.5–24.0%). At low intensity of the mite (up to 20 individuals) and invasion of the trematode B. polymorphus (minor infections; part of the reproductive glands, populated by parasites, is less than 50%) the acceleration of ciliary beating and increasing of the duration of ciliary beating of the ciliated epithelium (1.4–2.6 times) were observed in species Anodonta and U. pictorum, at high intensity of invasion the inhibition of beating and reduction of the duration of ciliary beating of the ciliated epithelium in these species (45.9–57.4%) was observed. In the case of the general pathological process in the body of molluscs , the influence of parasites can cause the elimination of individuals with high intensity of infestation , which affects the absolute number and population density of molluscs.
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EL-BAHY, MOHAMED, MARWA KHALIFA, and MARWA ATWA. "CONTRIBUTIONS ON TREMATODA-SNAIL INTERACTIONS." Journal of the Egyptian Society of Parasitology 47, no. 3 (December 1, 2017): 643–52. http://dx.doi.org/10.21608/jesp.2017.77723.
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