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Feeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fish

2013Journal article Open access
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dc.contributor.authorSantos, José M.
dc.contributor.authorEncina, Lourdes
dc.contributor.authorOliveira, João Manuel
dc.contributor.authorTeixeira, Amílcar
dc.date.accessioned2013-09-05T14:31:08Z
dc.date.available2013-09-05T14:31:08Z
dc.date.issued2013
dc.description.abstractThis 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.por
dc.description.abstractEste 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.por
dc.identifier.citationSantos, 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. 27-38por
dc.identifier.urihttp://hdl.handle.net/10198/8634
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAsociación Ibérica de Limnologíapor
dc.relationINFLUENCES OF HABITAT CHANGES BY RIPARIAN FOREST DISTURBANCE ON FISH ASSEMBLAGES IN MEDITERRANEAN STREAMS
dc.subjectFeeding strategiespor
dc.subjectNative speciespor
dc.subjectDiet compositionpor
dc.subjectSeasonal variabilitypor
dc.subjectPortugalpor
dc.titleFeeding ecology of the Ruivaco Achondrostoma oligolepis, a portuguese endemic cyprinid fishpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleINFLUENCES OF HABITAT CHANGES BY RIPARIAN FOREST DISTURBANCE ON FISH ASSEMBLAGES IN MEDITERRANEAN STREAMS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F26417%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F44624%2F2008/PT
oaire.citation.endPage38por
oaire.citation.startPage27por
oaire.citation.titleLimneticapor
oaire.citation.volume32por
oaire.fundingStreamSFRH
person.familyNameTeixeira
person.givenNameAmilcar
person.identifier2153193
person.identifier.ciencia-id9510-3CF3-0393
person.identifier.orcid0000-0001-5336-1174
person.identifier.scopus-author-id7202385393
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscovery4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
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