Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/18080 |
Resumo: | Some pouting caught off the Atlantic coast of Portugal are discarded as unmarketable due to a dark discolouration of the skin and muscle. This study investigates the cause of this condition, describes the new parasite species responsible, and highlights the importance of educating those in charge of premarket inspection of food fish in order to reduce likelihood that consumers will eat infected fish. Macroscopically, infected fish showed considerable heterogeneity in darkening of the skin and hypaxial and epaxial muscles. Microscopical observation revealed bipolar nematode eggs in varying stages of development arranged in a linear pattern along muscle fibers. Histopathology confirmed the presence of eggs of a nematode of the genus Huffmanela Moravec, 1987 as the cause of muscle darkening and established a relationship between infection intensity and consequent darkened appearance of the tissues. The eggs are oval or barrel-shaped, with a smooth surface and polar plugs at opposite ends. The thin outer vitelline membrane is smooth and lacks ornamentation. Under light microscopy, the main eggshell of older eggs exhibits the outermost delicate and smooth vitelline membrane, and a thicker layer, correspondent to chitinous and chondroitin proteoglycan layers. Scanning electron microscopy of eggs confirmed light microscopic studies, namely the presence of a smooth vitelline membrane surrounding the egg. Microscopic and ultrastructural characteristics of eggs, and a new host family in a new geographic area, all suggest that a new species, herein named Huffmanela lusitana sp. n. is involved |
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spelling |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of PortugalTrisopterus luscusdark muscleHuffmanela lusitananematodeportuguese coastmarketed infected food-fishSome pouting caught off the Atlantic coast of Portugal are discarded as unmarketable due to a dark discolouration of the skin and muscle. This study investigates the cause of this condition, describes the new parasite species responsible, and highlights the importance of educating those in charge of premarket inspection of food fish in order to reduce likelihood that consumers will eat infected fish. Macroscopically, infected fish showed considerable heterogeneity in darkening of the skin and hypaxial and epaxial muscles. Microscopical observation revealed bipolar nematode eggs in varying stages of development arranged in a linear pattern along muscle fibers. Histopathology confirmed the presence of eggs of a nematode of the genus Huffmanela Moravec, 1987 as the cause of muscle darkening and established a relationship between infection intensity and consequent darkened appearance of the tissues. The eggs are oval or barrel-shaped, with a smooth surface and polar plugs at opposite ends. The thin outer vitelline membrane is smooth and lacks ornamentation. Under light microscopy, the main eggshell of older eggs exhibits the outermost delicate and smooth vitelline membrane, and a thicker layer, correspondent to chitinous and chondroitin proteoglycan layers. Scanning electron microscopy of eggs confirmed light microscopic studies, namely the presence of a smooth vitelline membrane surrounding the egg. Microscopic and ultrastructural characteristics of eggs, and a new host family in a new geographic area, all suggest that a new species, herein named Huffmanela lusitana sp. n. is involvedElsevierRepositório da Universidade de LisboaRamos, PaulaCarvalho, RaquelRosa, FernandaPires, Graça AlexandreSeixas, FernandaEsteves, AlexandraHuffman, David2019-06-28T10:14:20Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/18080engIJP: Parasites and Wildlife 9 (2019) 266–273https://doi.org/10.1016/j.ijppaw.2019.05.010info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-10T01:34:04Zoai:www.repository.utl.pt:10400.5/18080Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:03:11.750357Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
title |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
spellingShingle |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal Ramos, Paula Trisopterus luscus dark muscle Huffmanela lusitana nematode portuguese coast marketed infected food-fish |
title_short |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
title_full |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
title_fullStr |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
title_full_unstemmed |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
title_sort |
Huffmanela lusitana sp. n. (Nematoda: Trichosomoididae) infecting pouting, Trisopterus luscus (Teleostei: Gadidae) off Atlantic coast of Portugal |
author |
Ramos, Paula |
author_facet |
Ramos, Paula Carvalho, Raquel Rosa, Fernanda Pires, Graça Alexandre Seixas, Fernanda Esteves, Alexandra Huffman, David |
author_role |
author |
author2 |
Carvalho, Raquel Rosa, Fernanda Pires, Graça Alexandre Seixas, Fernanda Esteves, Alexandra Huffman, David |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Ramos, Paula Carvalho, Raquel Rosa, Fernanda Pires, Graça Alexandre Seixas, Fernanda Esteves, Alexandra Huffman, David |
dc.subject.por.fl_str_mv |
Trisopterus luscus dark muscle Huffmanela lusitana nematode portuguese coast marketed infected food-fish |
topic |
Trisopterus luscus dark muscle Huffmanela lusitana nematode portuguese coast marketed infected food-fish |
description |
Some pouting caught off the Atlantic coast of Portugal are discarded as unmarketable due to a dark discolouration of the skin and muscle. This study investigates the cause of this condition, describes the new parasite species responsible, and highlights the importance of educating those in charge of premarket inspection of food fish in order to reduce likelihood that consumers will eat infected fish. Macroscopically, infected fish showed considerable heterogeneity in darkening of the skin and hypaxial and epaxial muscles. Microscopical observation revealed bipolar nematode eggs in varying stages of development arranged in a linear pattern along muscle fibers. Histopathology confirmed the presence of eggs of a nematode of the genus Huffmanela Moravec, 1987 as the cause of muscle darkening and established a relationship between infection intensity and consequent darkened appearance of the tissues. The eggs are oval or barrel-shaped, with a smooth surface and polar plugs at opposite ends. The thin outer vitelline membrane is smooth and lacks ornamentation. Under light microscopy, the main eggshell of older eggs exhibits the outermost delicate and smooth vitelline membrane, and a thicker layer, correspondent to chitinous and chondroitin proteoglycan layers. Scanning electron microscopy of eggs confirmed light microscopic studies, namely the presence of a smooth vitelline membrane surrounding the egg. Microscopic and ultrastructural characteristics of eggs, and a new host family in a new geographic area, all suggest that a new species, herein named Huffmanela lusitana sp. n. is involved |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-28T10:14:20Z 2019 2019-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.5/18080 |
url |
http://hdl.handle.net/10400.5/18080 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
IJP: Parasites and Wildlife 9 (2019) 266–273 https://doi.org/10.1016/j.ijppaw.2019.05.010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1817554077101326336 |