Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/25710 |
Resumo: | This is the first host record of Gymnophallus choledochus metacercariae infecting the polychaete Diopatra neapolitana in the Aveiro estuary (Portugal). The metacercariae were round unencysted, and their morphology is similar to that presented by metacercariae harbored by Nereis diversicolor and Cerastoderma edule, although they are larger in size. In D. neapolitana, the prevalence and mean intensity of the infection was very high, at 100% and 202 +/- 139 metacercariae per host, respectively, Suggesting that this polychaete is the most Suitable host for G choledochus in the Aveiro estuary. In terms of distribution within the host, the metacercariae were found almost exclusively in the branchial segments (97.4%). This, in conjunction with the close relationship between the mean intensity and branchial surface area, Suggests that the branchiae may be the site of entry into the polychaete. Within the branchial segments, the sites selected by the metacercariae are the parapodia (68.9%), where they are mostly located inside the setal sac. and the longitudinal Muscles (22.3%). causing hypertrophy and rupture of the Muscle bundles, respectively. These histological changes suggest a reduction in polychaete mobility. which should lid the easy predation of infected hosts by birds and thus facilitate the continuity of the G. choledochus life cycle. |
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Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and HistopathologyCiências da saúdeHealth sciencesThis is the first host record of Gymnophallus choledochus metacercariae infecting the polychaete Diopatra neapolitana in the Aveiro estuary (Portugal). The metacercariae were round unencysted, and their morphology is similar to that presented by metacercariae harbored by Nereis diversicolor and Cerastoderma edule, although they are larger in size. In D. neapolitana, the prevalence and mean intensity of the infection was very high, at 100% and 202 +/- 139 metacercariae per host, respectively, Suggesting that this polychaete is the most Suitable host for G choledochus in the Aveiro estuary. In terms of distribution within the host, the metacercariae were found almost exclusively in the branchial segments (97.4%). This, in conjunction with the close relationship between the mean intensity and branchial surface area, Suggests that the branchiae may be the site of entry into the polychaete. Within the branchial segments, the sites selected by the metacercariae are the parapodia (68.9%), where they are mostly located inside the setal sac. and the longitudinal Muscles (22.3%). causing hypertrophy and rupture of the Muscle bundles, respectively. These histological changes suggest a reduction in polychaete mobility. which should lid the easy predation of infected hosts by birds and thus facilitate the continuity of the G. choledochus life cycle.20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/25710eng0022-339510.1645/ge-2015.1Rangel, LFSantos, MJinfo: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:RCAAP2023-11-29T14:41:31Zoai:repositorio-aberto.up.pt:10216/25710Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:06:54.108474Repositório 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 |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
title |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
spellingShingle |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology Rangel, LF Ciências da saúde Health sciences |
title_short |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
title_full |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
title_fullStr |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
title_full_unstemmed |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
title_sort |
Diopatra neapolitana (Polychaeta: Onuphidae) as a Second Intermediate Host of Gymnophallus choledochus (Digenea: Gymnophallidae) in the Aveiro Estuary (Portugal): Distribution Within the Host and Histopathology |
author |
Rangel, LF |
author_facet |
Rangel, LF Santos, MJ |
author_role |
author |
author2 |
Santos, MJ |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Rangel, LF Santos, MJ |
dc.subject.por.fl_str_mv |
Ciências da saúde Health sciences |
topic |
Ciências da saúde Health sciences |
description |
This is the first host record of Gymnophallus choledochus metacercariae infecting the polychaete Diopatra neapolitana in the Aveiro estuary (Portugal). The metacercariae were round unencysted, and their morphology is similar to that presented by metacercariae harbored by Nereis diversicolor and Cerastoderma edule, although they are larger in size. In D. neapolitana, the prevalence and mean intensity of the infection was very high, at 100% and 202 +/- 139 metacercariae per host, respectively, Suggesting that this polychaete is the most Suitable host for G choledochus in the Aveiro estuary. In terms of distribution within the host, the metacercariae were found almost exclusively in the branchial segments (97.4%). This, in conjunction with the close relationship between the mean intensity and branchial surface area, Suggests that the branchiae may be the site of entry into the polychaete. Within the branchial segments, the sites selected by the metacercariae are the parapodia (68.9%), where they are mostly located inside the setal sac. and the longitudinal Muscles (22.3%). causing hypertrophy and rupture of the Muscle bundles, respectively. These histological changes suggest a reduction in polychaete mobility. which should lid the easy predation of infected hosts by birds and thus facilitate the continuity of the G. choledochus life cycle. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z |
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 |
https://hdl.handle.net/10216/25710 |
url |
https://hdl.handle.net/10216/25710 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0022-3395 10.1645/ge-2015.1 |
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.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 |
instname_str |
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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