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Research center of Embrapa/Collection: Embrapa Amapá - Artigo em periódico indexado (ALICE)
Date Issued: 2014
Type of Material: Artigo em periódico indexado (ALICE)
Authors: LIMA, J. de F.
GARCIA, J. da S.
SILVA, T. C. da
Additional Information: JO DE FARIAS LIMA, CPAF-AP.
Title: Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River.
Publisher: Acta Amazonica, Manaus, v. 44, n. 2, p. 235-244, 2014.
Language: en
Keywords: Food
Sand ingestion
Ingestão de areia
Stomach morphology
Morfologia do estomago.
Description: 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.
Thesagro: Crustáceo
Camarão pitu
NAL Thesaurus: shrimp.
Data Created: 2014-04-22
Appears in Collections:Artigo em periódico indexado (CPAF-AP)

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