Data/hora: 11/06/2024 09:37:44

Provedor de dados: | 36
País: | Brazil
Título: | Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River
Autores: | Lima,Jô de Farias; Garcia,Jamile da Silva; Silva,Thibério Carvalho da.
Data: | 2014-06-01
Ano: | 2014
Palavras-chave: | Food; Stomach morphology; Pitu; Sand ingestion; Palaemonid.
Resumo: | Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species. The aim of this study was the identification of the diet items of M. carcinus based on the analysis of the stomach contents. Specimens were collected in the Amazon River estuary between January 2009 and January 2010. The stomach analysis was carried out by using the frequency of occurrence (FO), methods of points (MP) and feeding index (FI). It was observed that prawns fed on detritus, animals and plant fragments as the most important food items. Sediment accounted for the main stomach content, accounting for 43.2% by the MP, 44.9% by FI and 100% by the FO. Sexual differences in feeding preferences were not found in this study, and seasonal differences in the frequency of items ingested by M. carcinus were not observed. The results indicated that M. carcinus can be considered omnivorous species, but with an important carnivorous component, similar to that found in other Macrobrachium species.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200009
Editor: | Instituto Nacional de Pesquisas da Amazônia
Relação: | 10.1590/S0044-59672014000200009
Formato: | text/html
Fonte: | Acta Amazonica  v.44 n.2 2014
Fonte: | info:eu-repo/semantics/openAccess