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Cárdenas MQ, Silva ML, Viana DC, Cohen SC, Ottoni FP. Nematofauna of Bryconops cf. affinis (Characiformes, Iguanodectidae) and Saxatilia brasiliensis (Cichliformes, Cichlidae) from the Munim River basin, Northeastern Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2024; 33:e011224. [PMID: 39292069 PMCID: PMC11452063 DOI: 10.1590/s1984-29612024051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/17/2024] [Indexed: 09/19/2024]
Abstract
Populations of freshwater species have been declining rapidly and species are becoming extinct. Thus, understanding freshwater species distribution, trends and patterns is required. The Munim River basin is situated in a region with a phytogeographic interface between the Amazon and Cerrado biomes. Although the Munim basin ichthyofauna is currently relatively well-known, data on its helminth fauna is scarce. The present study aimed to characterize the nematofauna of Bryconops cf. affinis (Günther) and Saxatilia brasiliensis (Bloch) from two different localities in the middle section of the Munim River, and thus to contribute to the knowledge of biodiversity in this region. Specimens of Bryconops cf. affinis were parasitized with the nematodes Procamallanus (Spirocamallanus) krameri (Petter, 1974) and "Porrocaecum-like" species (larvae) in both localities. Saxatilia brasiliensis presented the nematodes P. (S.) krameri, Pseudoproleptus sp. (larvae), Cucullanus sp. and Procamallanus sp. (larvae). Procamallanus (S.) krameri was found parasitizing S. brasiliensis only from the Feio stream. Morphometric data and parasitological parameters are given. The present study provides the first record of nematodes for B. cf. affinis and for S. brasiliensis contributing to the knowledge of the helminth fauna of freshwater fishes from locations that have not yet been studied, such as the Munim River basin.
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Affiliation(s)
- Melissa Querido Cárdenas
- Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz – FIOCRUZ, Rio de Janeiro, RJ, Brasil
| | - Marciara Lopes Silva
- Programa de Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão – UEMA, São Luís, MA, Brasil
| | - Diego Carvalho Viana
- Programa de Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão – UEMA, São Luís, MA, Brasil
- Núcleo de Estudos Morfofisiológicos Avançados, Universidade Estadual da Região Tocantina do Maranhão – UEMASUL, Imperatriz, MA, Brasil
| | - Simone Chinicz Cohen
- Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz – FIOCRUZ, Rio de Janeiro, RJ, Brasil
| | - Felipe Polivanov Ottoni
- Laboratório de Sistemática e Ecologia de Organismos Aquáticos, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão – UFMA, Campus de Chapadinha, Chapadinha, MA, Brasil
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Pinheiro RHS, Ruffeil LAAS, Giese EG. Cucullanus lithodorasi n. sp. (Nematoda: Cucullanidae), a parasite of Lithodoras dorsalis (Siluriformes: Doradidae) on the north coast of Brazil. AN ACAD BRAS CIENC 2024; 96:e20230339. [PMID: 38896740 DOI: 10.1590/0001-3765202420230339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/16/2023] [Indexed: 06/21/2024] Open
Abstract
Cucullanus lithodorasi n. sp. (Nematoda: Cucullanidae), collected from the intestine of Lithodoras dorsalis (Siluriformes) and waters of the north coast of Brazil is described based on light and scanning electron microscopic observations. The new species differs from its congeners in the number and arrangement of cloacal papillae: five precloacal pairs and five postcloacal pairs and presence of unpaired ventral papillae located slightly anterior to the cloaca. This is the third nominal species of the genus infecting fishes from brackish water from Brazil.
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Affiliation(s)
- Raul Henrique S Pinheiro
- Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Laboratório de Histologia e Embriologia Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
- Programa de Pós-Graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
| | - Luís Augusto A S Ruffeil
- Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Laboratório de Histologia e Embriologia Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
- Programa de Pós-Graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
| | - Elane G Giese
- Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Laboratório de Histologia e Embriologia Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
- Programa de Pós-Graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia/UFRA, Instituto da Saúde e Produção Animal, Avenida Presidente Tancredo Neves, 2501, Terra Firme, 66077-830 Belém, PA, Brazil
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Ghanei-Motlagh R, Fast MD, Groman D, Kumar G, Soliman H, El-Matbouli M, Saleh M. Description, molecular identification and pathological lesions of Huffmanela persica sp. nov. (Nematoda: Trichosomoididae: Huffmanelinae) from the daggertooth pike conger Muraenesox cinereus. Parasit Vectors 2023; 16:182. [PMID: 37277780 DOI: 10.1186/s13071-023-05772-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/09/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND The genus Huffmanela Moravec, 1987 (Nematoda, Trichosomoididae, Huffmanelinae), represents a group of nematodes that infect both marine and freshwater fish, and the main gross feature of infection with different species of the genus is the presence of noticeable dark spots or tracks within the parasitized tissues. The purpose of this study was to describe morphologically and morphometrically the eggs of a new marine species of Huffmanela (Huffmanela persica sp. nov.), which was found in the form of black spots in the ovary and the tunica serosa of the stomach of the daggertooth pike conger (Muraenesox cinereus). The new species differs from Huffmanela hamo, another species reported from musculature of this host in Japan, in egg metrics, eggshell features and targeted organ. Molecular identification and pathological examination of the lesions caused by the new species are also reported. METHODS Nematode eggs with varying degrees of development were separated from the infected tissues (ovary and tunica serosa of stomach) and investigated using light and scanning electron microscopy. Different species-specific markers (small subunit ribosomal DNA, 18S; large subunit ribosomal DNA, 28S; internal transcribed spacer, ITS) were used for molecular identification and phylogenetic study of the new species. Infected tissues were fixed in buffered formalin for pathological investigations. RESULTS The fully developed eggs of H. persica sp. nov. are distinguished from those previously described from this host on the basis of their measurements (size, 54-68 × 31-43 µm; polar plugs, 6.4-9.7 × 8.4-12 µm; shell thickness, 3.5-6.1 µm) and a delicate but ornate uterine layer (UL) covering the entire eggshell including the polar plugs. Histopathological examination revealed a fibro-granulomatous inflammation in the ovary and the serosal layer of the stomach of infected fish. Maximum-likelihood (ML) phylogenetic analysis recovered a sister relationship between the new species of marine origin and Huffmanela species previously collected from freshwater hosts. CONCLUSIONS The present study is the first to report the molecular characterization and phylogenetic position of a teleost-associated marine species of the genus Huffmanela. A comprehensive list of nominal and innominate populations of Huffmanela is also provided.
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Affiliation(s)
- Reza Ghanei-Motlagh
- Division of Fish Health, University of Veterinary Medicine, 1210, Vienna, Austria.
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada.
| | - Mark D Fast
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
| | - David Groman
- Aquatic Diagnostic Services, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada
| | - Gokhlesh Kumar
- Division of Fish Health, University of Veterinary Medicine, 1210, Vienna, Austria
| | - Hatem Soliman
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Assiut University, Assiut, 71515, Egypt
| | - Mansour El-Matbouli
- Division of Fish Health, University of Veterinary Medicine, 1210, Vienna, Austria
| | - Mona Saleh
- Division of Fish Health, University of Veterinary Medicine, 1210, Vienna, Austria.
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Ailán-Choke LG, Davies D, Malta LS, Couto JV, Tavares LER, Luque JL, Pereira FB. Cucullanus pinnai pinnai and C. pinnai pterodorasi (Nematoda Cucullanidae): what does the integrative taxonomy tell us about these species and subspecies classification? Parasitol Res 2023; 122:557-569. [PMID: 36526926 DOI: 10.1007/s00436-022-07758-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
Cucullanus pinnai has been divided in two subspecies (C. pinnai pinnai and C. pinnai pterodorasi) based on the morphology of oesophastome. While C. pinnai pinnai apparently shows low host specificity and broad geographic occurrence, with certain morphological variations, C. pinnai pterodorasi was reported once, parasitizing Pterodoras granulosus. We used an integrative taxonomic approach to evaluate whether or not populations of C. pinnai pinnai from Trychomycterus spegazzinii (Escoipe River, Argentina) and Pimelodus fur (Miranda River, Brazil), and of C. pinnai pterodorasi from Pterodoras granulosus (Miranda River, Brazil) are conspecific. Parasites were observed using light microscopy and genetically characterized based on partial sequences of the 18S and 28S rDNA, ITS1-5.8S-ITS2, and COI mtDNA. Phylogenies were reconstructed and the Generalized Mixed Yule Coalescent (GMYC), Poisson Tree Process (bPTP), and Automatic Barcode Gap Discovery (ABGD) were used for species delimitation purposes. The present samples formed well-supported monophyletic assemblages, corroborating in part the results of morphological analyses; however, they grouped according to geographic origin. Species delimitation suggested conspecificity of C. pinnai pinnai with C. pinnai pterodorasi from Brazil; consequently, the morphology of oesophastome may be an intraspecific variation. Results also indicated that C. pinnai may represent a species complex as samples from Argentina were suggestive of an independent specific entity. However, definitive affirmations are premature, since there is no autapomorphy for separating C. pinnai from Brazil and Argentina and sampling was limited to three host species from two river basins. The phylogenetic reconstructions also confirmed the artificiality of some genera within Cucullanidae.
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Affiliation(s)
- Lorena G Ailán-Choke
- Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto Para El Estudio de La Biodiversidad de Invertebrados, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, 4400, Salta, Argentina
| | - Dora Davies
- Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto Para El Estudio de La Biodiversidad de Invertebrados, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, 4400, Salta, Argentina
| | - Lennon S Malta
- Programa de Pós-Graduação Em Biologia Animal, Instituto de Biociências, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva S/N°, Campo Grande, MS, CEP 79070-900, Brazil
| | - João Victor Couto
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, CEP 31270-901, Brazil
| | - Luiz Eduardo R Tavares
- Programa de Pós-Graduação Em Biologia Animal, Instituto de Biociências, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva S/N°, Campo Grande, MS, CEP 79070-900, Brazil
| | - José L Luque
- Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural Do Rio de Janeiro, BR 465, Km 47, Seropédica, RJ, CEP 23851-970, Brazil
| | - Felipe B Pereira
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, CEP 31270-901, Brazil.
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Pereira FB, González-Solís D. Review of the parasitic nematodes of marine fishes from off the American continent. Parasitology 2022; 149:1928-1941. [PMID: 36076284 PMCID: PMC11010509 DOI: 10.1017/s0031182022001287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 12/29/2022]
Abstract
The ichthyofauna of the Atlantic and Pacific coasts off the American continent is very rich. Consequently, a high biodiversity of nematodes parasitizing these vertebrates is also expected. Currently, data on nematode parasites of marine fish off the Americas are fragmented. A review of all adult nematode species reported parasitizing marine fish from off the American continent is herein presented, as well as comments on their patterns of diversity, life cycles and advances in the taxonomic and phylogenetic knowledge. A total of 209 valid species, 19 species inquirendae and 6 dubious records have been recorded, the majority from the fish taxa Eupercaria and Perciformes. The families Sciaenidae, Serranidae and Lutjanidae, as well as the tropical and temperate Atlantic waters, exhibited the highest records of parasitic nematodes. The Cucullanidae, Philometridae and Cystidicolidae were the most speciose families of nematodes, which may be related to technological advances and relatively recent efforts of taxonomists, resulting in description of new taxa and the resolution of taxonomic problems. Numerous taxonomic questions still need resolution and, even though genetic data have been important for this process, the database is very scarce. This is the first review on all currently known nematode species parasitizing marine fish off the Americas and may serve as an important basis of reference for future approaches on these organisms.
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Affiliation(s)
- Felipe B. Pereira
- Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antonio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
| | - David González-Solís
- El Colegio de la Frontera Sur, Unidad Chetumal, Av. Centenario km 5.5, C.P. 77014, Chetumal, Quintana Roo, Mexico
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Checklist of nematodes parasitizing fish in the Brazilian Amazon. J Helminthol 2021; 95:e75. [PMID: 34964710 DOI: 10.1017/s0022149x21000729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This study presents a list of parasitic fish nematodes from the Brazilian Amazon based on the previous Brazilian list including scientific assessments carried out between 2010 and 2021. A total of 16 families, 48 species and 28 undetermined species of nematodes associated with fish are included in the checklist, in addition to 93 host species and 15 geographical records.
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Cucullanus carettae Baylis, 1923, in a loggerhead sea turtle (Caretta caretta) from the Adriatic sea: first detection and molecular characterization. Parasitol Res 2020; 120:341-345. [PMID: 33118608 PMCID: PMC7846504 DOI: 10.1007/s00436-020-06936-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/18/2020] [Indexed: 11/29/2022]
Abstract
Cucullanus carettae Baylis, 1923 (Nematoda: Cucullanidae) is found worldwide in loggerhead turtles (Caretta caretta). Regarding the Mediterranean, C. carettae has been identified in the Tyrrhenian and the Ionian Sea and a unique description of a Cucullanus sp. specimen in loggerheads from the Adriatic Sea has been reported in the literature so far. In the framework of a bio-monitoring project of the Abruzzo and Molise coasts, a parasitological survey was performed on stranded and by-caught sea turtles, at the Istituto Zooprofilattico of Abruzzo and Molise “G. Caporale.” During necropsy, the gastrointestinal system of 72 stranded loggerhead turtles was analyzed for the presence of endoparasites and fecal samples were collected for coprological examination. Adult C. carettae (n = 123) was found in the upper intestine of one loggerhead turtle, associated with chronic lymphoplasmocytic enteritis. Additionally, five stool samples (6.9%) were positive for Cucullanus sp. eggs. Molecular characterization of adult nematodes was carried out to study phylogenetic relationships among the Cucullanus species. To our knowledge, this is the first morphological and molecular identification of C. carettae in loggerhead turtles from the Adriatic Sea. Additional studies on the distribution of this parasite in the Mediterranean are encouraged.
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McElwain A, Warren MB, Pereira FB, Ksepka SP, Bullard SA. Pathobiology and first report of larval nematodes (Ascaridomorpha sp.) infecting freshwater mussels ( Villosa nebulosa, Unionidae), including an inventory of nematode infections in freshwater and marine bivalves. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2019; 10:41-58. [PMID: 31372335 PMCID: PMC6658933 DOI: 10.1016/j.ijppaw.2019.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 11/17/2022]
Abstract
Little information is available on host-parasite relationships between bivalves and larval nematodes. Herein, we describe nematode larvae (likely stage 2) in the infraorder Ascaridomorpha infecting the foot, intestine, and mantle of a freshwater mussel (Alabama rainbow, Villosa nebulosa [Conrad, 1834]) and detail histopathological changes to infected tissues. A total of 43 live mussels from the South Fork of Terrapin Creek, Alabama, were collected between 2010 and 2014, with 14 sectioned for histopathology and 29 dissected. Of the 14 sectioned mussels, 5 appeared to be uninfected, and 7, 1, and 1 had histozoic infections observed in the foot and intestine, intestine only, and mantle edge and foot, respectively. Twenty-three of 29 (79%) of the mussels dissected were infected by live nematodes, and mean nematode abundance was 8.3 (CL = 5.23–13), with 2 mussels infected with >100 nematodes each. Thus, with a total of 32 of the 43 collected mussels observed with nematodes, overall infection prevalence was 74.4% (CL = 0.594–0.855). The 18S rDNA of this nematode was 99% similar to that of several ascaridids (species of Kathlaniidae Lane, 1914 and Quimperiidae Baylis, 1930) that mature in aquatic/semi-aquatic vertebrates; the recovered 18S phylogenetic tree indicated this nematode from V. nebulosa shares a recent common ancestor with Ichthyobronema hamulatum (Ascaridomorpha: Quimperiidae; GenBank Accession Number KY476351). Pathological changes to tissue associated with these infections comprised focal tissue damage, but a cellular response was not evident. The Alabama rainbow possibly represents an intermediate or paratenic host. Given these results, the nematode is likely not pathogenic under normal stream conditions; however, high intensity infections in the foot could inhibit pedal extension and retraction; which would have demonstrable health consequences to a freshwater mussel. Based on our review of the bivalve mollusc parasite literature, a collective biodiversity of 61 nematodes reportedly exhibit some degree of symbiosis (from commensal to parasitic) with 21 bivalves (28 nematode spp. from 17 marine bivalve spp.; 33 nematode spp. from 4 freshwater bivalve spp.); only four records exist of putatively parasitic nematodes from Unionida. The present study represents the first description of a nematode species that invades the tissues of a Unionidae species. Pathological changes comprised focal tissue damage but a cellular response to the parasites was not evident. Nematodes from infected tissues appear to be second stage larvae of Ascaridomorpha. The small subunit rDNA sequence of this nematode was 99% similar to species of Kathlaniidae and Quimperiidae. The nematode is likely not pathogenic under normal stream conditions.
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Affiliation(s)
- Andrew McElwain
- Department of Biological Sciences, College of Liberal Arts and Sciences, State University of New York (SUNY) at Oswego, 30 Centennial Drive, Oswego, NY 13126, USA
| | - Micah B Warren
- Aquatic Parasitology Laboratory, School of Fisheries Aquaculture and Aquatic Sciences, College of Agriculture, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Felipe B Pereira
- Programa de Pós-Graduação em Biologia Animal, Instituto de Biociências, Universidade Federal de Mato Grossodo Sul, Av. Costa e Silva s/n°, CEP 79070-900, Campo Grande, MS, Brazil
| | - Steven P Ksepka
- Aquatic Parasitology Laboratory, School of Fisheries Aquaculture and Aquatic Sciences, College of Agriculture, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Stephen A Bullard
- Aquatic Parasitology Laboratory, School of Fisheries Aquaculture and Aquatic Sciences, College of Agriculture, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
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Pinheiro RHDS, Santana RLS, Monks S, Santos JND, Giese EG. Cucullanus marajoara n. sp. (Nematoda: Cucullanidae), a parasite of Colomesus psittacus (Osteichthyes: Tetraodontiformes) in the Marajó, Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA 2018; 27:521-530. [DOI: 10.1590/s1984-296120180072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/22/2018] [Indexed: 11/22/2022]
Abstract
Abstract Cucullanus marajoara n. sp. (Cucullanidae) is reported to parasitize Colomesus psittacus (Tetraodontiformes), which is a fish species from the Marajó Archipelago, state of Pará, estuarine region of the Brazilian Amazon. The new species differs from similar species by the presence of a protruding upper lip on the cloacal opening, the distribution of the cloacal papillae: five pre-cloacal papillae pairs and 5 are ventral and located posteriorly to the pre-cloacal sucker and an unpaired papilla is located on the upper cloacal lip and five post-cloacal pairs, and a pair of lateral phasmids located between papillae pairs. Additionally, Cucullanus marajoara n. sp. is compared to other species of this genus described in Brazil, particularly Cucullanus ageneiosus and Cucullanus oswaldocruzi, which both occur in the same zoogeographic region of this study but parasitize fish of a different order (Siluriformes). Cucullanus dodsworthi and Cucullanus brevicaudatus are the only described species parasitizing fish of the order Tetradontiformes in Brazil, and the new species differs from these species by the distribution of the cloacal papillae and the host habitat. The description of Cucullanus marajoara n. sp. adds data to the biodiversity of described parasites that parasitize Tetradontiformes of the estuarine ichthyofauna in the Brazilian Amazon.
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Affiliation(s)
| | | | - Scott Monks
- Universidad Autónoma del Estado de Hidalgo Pachuca, México
| | | | - Elane Guerreiro Giese
- Universidade Federal do Pará, Brasil; Universidade Federal Rural da Amazônia, Brasil
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Redescription and first genetic characterisation of Procamallanus (Spirocamallanus) macaensis Vicente & Santos, 1972 (Nematoda: Camallanidae), including re-evaluation of the species of Procamallanus (Spirocamallanus) from marine fishes off Brazil. Syst Parasitol 2017; 94:657-668. [DOI: 10.1007/s11230-017-9728-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/17/2017] [Indexed: 10/19/2022]
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