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Aguiaro,Talita; Castelo Branco,Christina Wyss; Verani,José Roberto; Caramaschi,Érica Pellegrini. |
Platanichthys platana is considered a constant species in both Cabiúnas and Imboassica lagoons that are characterised by different marine and freshwater inputs, and anthropogenic influences. The stomach content analysis of P. platana captured between July 1991 and July 1993 revealed filamentous algae, detritus, eggs of benthic invertebrates, larvae of chironomids and bivalves as the main food sources in Imboassica lagoon. Small-sized cladocerans, copepods and shrimp larvae were the prevailing items in Cabiúnas lagoon. Seasonal food variations were noted for the fishes of Imboassica lagoon. Diet differences were highlighted within specimens lesser than 40 mm standard length in Imboassica lagoon, and were related to the increase of marine influence due to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Coastal lagoons; Food items; Platanichthys platana. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200013 |
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Pacheco,Andreza Cecília Gomes; Bartolette,Renata; Caluca,José Filipe; Castro,André Luís Moraes de; Albrecht,Míriam Pilz; Caramaschi,Érica Pellegrini. |
A dieta e atividade alimentar de Rhaphiodon vulpinus foram estudadas antes e após o represamento do alto Rio Tocantins pela UHE Serra da Mesa, GO, em duas grandes áreas: reservatório e jusante. O conteúdo estomacal de 214 exemplares foi analisado, sendo 46 da fase rio (dez./95 a out./96), 100 da fase enchimento (dez./96 a abr./98) e 68 da fase operação (jun./98 a fev./00). A espécie confirmou-se como piscívora, com consumo eventual de insetos e material vegetal. Na área a jusante, dentre os peixes-presa identificados, nenhum foi comum às três fases. As presas mais importantes foram Geophagus cf. surinamensis, Hemiodus ternetzi e Pimelodus blochii nas fases rio, enchimento e operação, respectivamente. Anchoviella sp. foi exclusiva da fase operação. Já no... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piscivoria; Cynodontidae; Reservatório; Alimentação; Bacia Tocantins-Araguaia. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300006 |
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Aranha,José Marcelo Rocha; Caramaschi,Érica Pellegrini. |
The population structure, reproductive aspects and feeding of Phalloceros caudimaculatus (Hensel, 1868), Poecilia vivipara Bloch & Schneider (1801), Phalloptychus januarius (Hensel, 1868) e Jenynsia lineata (Jenyns, 1842) were studied in five sampling stations in the Ubatiba stream, municipality of Maricá (State of Rio de Janeiro, Brazil). In relation to the population structure, P. caudimaculatus was more representative upstream; P. vivipara mid-stream and downstream; P. januarius and J. lineata downstream. The species presented preponderance of females, except in the intermediate length classes. The occurence of imatures and females with young pointed out a long reproductive period and favoured areas for reproduction of the four species. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyprinodontiformes; Population structure; Feeding; Reproduction; Coastal stream. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300005 |
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