Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/10198/8634 |
Resumo: | This study assessed the feeding ecology of the ruivaco Achondrostoma oligolepis, a Portuguese endemic resident cyprinid fish whose dietary habits are virtually unknown. Samples were taken seasonally in three medium-sized rivers representing a gradient of temporality. The stomach contents of 97 individuals (42-126 mm total length, TL) were analysed. Although there was no significant overall variation in diet composition between rivers, differences were found among seasons. A broad range of food categories was identified, although a smaller subset of primarily detritus (77.6 %) and plant material (18.4 %) constituted the base diet. Of the animal prey, Coleoptera and Diptera were the most prevalent, occurring in 13.2 % and 9.8 % of the fish, respectively, and were consumed mainly in the spring. Based on the observed diet composition and feeding strategy, the ruivaco could be considered a generalist, foraging on the most abundant and available prey. |
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Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fishFeeding strategiesNative speciesDiet compositionSeasonal variabilityPortugalThis study assessed the feeding ecology of the ruivaco Achondrostoma oligolepis, a Portuguese endemic resident cyprinid fish whose dietary habits are virtually unknown. Samples were taken seasonally in three medium-sized rivers representing a gradient of temporality. The stomach contents of 97 individuals (42-126 mm total length, TL) were analysed. Although there was no significant overall variation in diet composition between rivers, differences were found among seasons. A broad range of food categories was identified, although a smaller subset of primarily detritus (77.6 %) and plant material (18.4 %) constituted the base diet. Of the animal prey, Coleoptera and Diptera were the most prevalent, occurring in 13.2 % and 9.8 % of the fish, respectively, and were consumed mainly in the spring. Based on the observed diet composition and feeding strategy, the ruivaco could be considered a generalist, foraging on the most abundant and available prey.Este estudio evaluó la ecología alimentaria del ruivaco (Achondrostoma oligolepis), un ciprínido endémico de Portugal cuyos hábitos alimenticios son prácticamente desconocidos. Las muestras fueron recogidas estacionalmente, en tres ríos medianos representando un gradiente de temporalidad. Los contenidos estomacales de 97 individuos (42-126 mm de longitud total, LT) fueron analizados. Aunque en general no hubo variación significativa en la composición de la dieta entre ríos, sí se encontraron diferencias entre las estaciones. Se identificó una amplia gama de categorías de alimentos, aunque un subconjunto más pequeño conformó la base de la dieta, encontrándose principalmente dominada por detritus (77.6 %) y material vegetal (18.4 %). Los coleópteros y dípteros fueron los grupos más frecuentes entre las presas animales, siendo encontrados en el 13.2 % y el 9.8 % de los peces respectivamente, y consumidos principalmente en primavera. Con base en la composición de la dieta y en la representación de la estrategia trófica, el ruivaco puede ser considerado como generalista, alimentándose de las presas más abundantes y disponibles.Asociación Ibérica de LimnologíaBiblioteca Digital do IPBSantos, José M.Encina, LourdesOliveira, João ManuelTeixeira, Amílcar2013-09-05T14:31:08Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/8634engSantos, José; Encina, Lourdes; Oliveira, João; Teixeira, Amílcar (2013). Feeding ecology of the Ruivaco Achondrostoma oligolepis, a Portuguese endemic cyprinid fish. Limnetica. ISSN 0213-8409. 32:1, p. 27-38info: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:RCAAP2023-11-21T10:21:16Zoai:bibliotecadigital.ipb.pt:10198/8634Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:00:08.966807Repositório 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 |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
title |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
spellingShingle |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish Santos, José M. Feeding strategies Native species Diet composition Seasonal variability Portugal |
title_short |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
title_full |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
title_fullStr |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
title_full_unstemmed |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
title_sort |
Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish |
author |
Santos, José M. |
author_facet |
Santos, José M. Encina, Lourdes Oliveira, João Manuel Teixeira, Amílcar |
author_role |
author |
author2 |
Encina, Lourdes Oliveira, João Manuel Teixeira, Amílcar |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Santos, José M. Encina, Lourdes Oliveira, João Manuel Teixeira, Amílcar |
dc.subject.por.fl_str_mv |
Feeding strategies Native species Diet composition Seasonal variability Portugal |
topic |
Feeding strategies Native species Diet composition Seasonal variability Portugal |
description |
This study assessed the feeding ecology of the ruivaco Achondrostoma oligolepis, a Portuguese endemic resident cyprinid fish whose dietary habits are virtually unknown. Samples were taken seasonally in three medium-sized rivers representing a gradient of temporality. The stomach contents of 97 individuals (42-126 mm total length, TL) were analysed. Although there was no significant overall variation in diet composition between rivers, differences were found among seasons. A broad range of food categories was identified, although a smaller subset of primarily detritus (77.6 %) and plant material (18.4 %) constituted the base diet. Of the animal prey, Coleoptera and Diptera were the most prevalent, occurring in 13.2 % and 9.8 % of the fish, respectively, and were consumed mainly in the spring. Based on the observed diet composition and feeding strategy, the ruivaco could be considered a generalist, foraging on the most abundant and available prey. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-05T14:31:08Z 2013 2013-01-01T00:00:00Z |
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/10198/8634 |
url |
http://hdl.handle.net/10198/8634 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Santos, José; Encina, Lourdes; Oliveira, João; Teixeira, Amílcar (2013). Feeding ecology of the Ruivaco Achondrostoma oligolepis, a Portuguese endemic cyprinid fish. Limnetica. ISSN 0213-8409. 32:1, p. 27-38 |
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 |
Asociación Ibérica de Limnología |
publisher.none.fl_str_mv |
Asociación Ibérica de Limnología |
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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1799135227569766400 |