Feeding ecology of curvina Plagioscion squamosissimus (Hechel, 1840) (Osteichthyes, Perciformes) in the Itaipu Reservoir and Porto Rico floodplain

Ecologia alimentar da curvina Plagioscion squamosissimus (Hechel, 1840) (Osteichthyes, Perciformes) no reservatório de Itaipu e planície de inundação de Porto Rico

dc.contributor
dc.creatorHAHN, N.S.; AGOSTINHO, A.A.; GOITEIN, R.
dc.date2018-10-31T19:37:05Z
dc.date2018-10-31T19:37:05Z
dc.date.accessioned2023-10-16T12:27:52Z
dc.date.available2023-10-16T12:27:52Z
dc.identifierhttp://repositorio.uem.br:8080/jspui/handle/1/5206
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9211017
dc.descriptionHAHN, Norma Segatti; AGOSTINHO, Angelo Antonio; GOITEIN, R. Feeding ecology of curvina Plagioscion squamosissimus (Hechel, 1840) (Osteichthyes, Perciformes) in the Itaipu Reservoir and Porto Rico floodplain. Acta Limnologica Brasiliensia, São Paulo, v.9, p.11-22, 1997. Disponível em:http://www.sblimno.org.br/acta/my_web_sites/acta_limnologica_contents9E_files/Art.02%20Vol%20IX.pdf
dc.descriptionFish samplings were carried out from November 1983 to September 1988, at different sites of the Paraná River basin, comprising the section between the Paranapanema and Iguaçu Rivers, with the purpose of analysing the diet diversity of curvina, Plagioscion squamosissimus, according to the spatial distribution and size of the individuals. The curvina was considered piscivorous, due to the predominance of fish in its diet, although insects (dominant in some ocasions) and crustaceans have been registered. The most frequently items were Hypophthalmus edentatus, Roeboides paranensis and Loncariichthys platymetopon. Spacial changes in the diet seem associated with the availability of prey in the environment. Piscivory increased with the curvina length, as well as the average size of the ingested prey.
dc.descriptionCapturas realizadas durante o período de novembro de 1983 a setembro de 1988, em diversos pontos da bacia do rio Paraná, no trecho compreendido entre os rios Paranapanema e Iguaçu, permitiram avaliar a dieta da curvina, Plagioscion squamosissimus e suas variações de acordo com o tamanho dos indivíduos e locais de coleta. Neste estudo a curvina foi considerada essencialmente piscívora, em função do notável predomínio de peixes em sua dieta, embora insetos (por vezes dominantes) e crustáceos tenham sido registrados. Os itens freqüentemente encontrados, caracterizados como preferenciais na dieta global foram, Hypophthalmus edentatus, Roeboides paranensis Loricariichthys platymetopon. Variações espaciais na dieta pareciam estar associadas à disponibilidade de presas no ambiente. O incremento em comprimento foi acompanhado por um aumento na piscivoria, bem como no tamanho médio da presa ingerida. Abstract: Fish samplings were carried out from November 1983 to September 1988, at different sites of the Paraná River basin, comprising the section between the Paranapanema and Iguaçu Rivers, with the purpose of analysing the diet diversity of curvina, Plagioscion squamosissimus, according to the spatial distribution and size of the individuals. The curvina was considered piscivorous, due to the predominance of fish in its diet, although insects (dominant in some ocasions) and crustaceans have been registered. The most frequently items were Hypophthalmus edentatus, Roeboides paranensis and Loncariichthys platymetopon. Spacial changes in the diet seem associated with the availability of prey in the environment. Piscivory increased with the curvina length, as well as the average size of the ingested prey.
dc.publisherBrasil
dc.publisherUEM
dc.rightsopenAccess
dc.subjectAlimentação de peixe
dc.subjectPiscivoria
dc.subjectPlagioscion squamosissimus
dc.subjectPlanície de inundação
dc.subjectParaná, Rio
dc.subjectReservatório de Itaipu
dc.subjectPorto Rico
dc.subjectBrasil.
dc.subjectFish feeding
dc.subjectPiscivory
dc.subjectPlagioscion squamosissimus
dc.subjectFloodplain
dc.subjectParaná River
dc.subjectItaipu Reservoir
dc.subjectPorto Rico
dc.subjectBrazil.
dc.subjectCiências Biológicas
dc.subjectEcologia
dc.titleFeeding ecology of curvina Plagioscion squamosissimus (Hechel, 1840) (Osteichthyes, Perciformes) in the Itaipu Reservoir and Porto Rico floodplain
dc.titleEcologia alimentar da curvina Plagioscion squamosissimus (Hechel, 1840) (Osteichthyes, Perciformes) no reservatório de Itaipu e planície de inundação de Porto Rico
dc.typearticle


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