Data/hora: 02/06/2024 03:58:29

Provedor de dados: | 57
País: | Brazil
Título: | Diel changes in food and feeding activity of sciaenid fishes from the South-western Atlantic, Brazil
Autores: | SOARES,L. S. H.; VAZZOLER,A. E. A. de M.
Data: | 2001-05-01
Ano: | 2001
Palavras-chave: | Diel feeding; Food habits; Teleostei; Sciaenidae; South-western Atlantic.
Resumo: | Food habits and daily feeding activity of fish populations are important ecological variables for understanding their role in the ecosystem. Diel changes in feeding activity and dietary composition of juvenile whitemouth croaker Micropogonias furnieri, shortfin corvina Isopisthus parvipinnis, shorthead drum Larimus breviceps and of juvenile and adult banded croaker Paralonchurus brasiliensis were investigated from samples taken over a 24 hours period from 4 to 5 September 1987 on the continental shelf off South-eastern Brazil. Whitemouth croaker and banded croaker had a benthic diet based on polychaetes and some caridean shrimps and showed no diel feeding pattern. Shortfin corvina and shorthead drum fed on crustaceans and teleostean fish, the former species primarily on pelagic sergestid shrimps and benthic caridean shrimps, and the latter mainly on pelagic sergestid shrimps, mysidacean and benthic caridean shrimps. Shortfin corvina is primarily a diurnal feeder, but preyed on some items only at night. Shorthead drum is a night feeder, with minimum stomach fullness values between dawn and daytime, and maximum values between dusk and night time.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200004
Editor: | Instituto Internacional de Ecologia
Relação: | 10.1590/S0034-71082001000200004
Formato: | text/html
Fonte: | Revista Brasileira de Biologia  v.61 n.2 2001
Fonte: | info:eu-repo/semantics/openAccess