Document Detail


Feeding pattern of Salminus maxillosus (Pisces, Characidae) at Cachoeira das Emas, Mogi-Guaçu River (São Paulo State, Southeast Brazil).
MedLine Citation:
PMID:  11514894     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Diet of 364 specimens of the dourado (Salminus maxillosus) was studied monthly at Cachoeira das Emas from November/1996 to May/1998, considered the breeding ground of this and other migrant fishes of Mogi-Guaçu River. Only adults were found at this site, and diet consisted exclusively of fish, with predominance of Leporinus sp. Seasonal variation in feeding activity was highest during some months of the rainy and hot season (September-December), when fish composition and number of prey species consumed also changed. These modifications were primarily attributed to an increase in food availability at the site of study during the rainy season, once most of the migrant species, including small Characidae concentrate there at this time of year. Apparently diet shifts, prey availability and rainfall are intimately related, representing a combination of factors that may account for the observed patterns of resource exploitation.
Authors:
K E Esteves; A V Lôbo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian journal of biology = Revista brasleira de biologia     Volume:  61     ISSN:  1519-6984     ISO Abbreviation:  Braz J Biol     Publication Date:  2001 May 
Date Detail:
Created Date:  2001-08-21     Completed Date:  2001-10-18     Revised Date:  2007-09-06    
Medline Journal Info:
Nlm Unique ID:  101129542     Medline TA:  Braz J Biol     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  267-76     Citation Subset:  IM    
Affiliation:
Instituto de Pesca, Secretaria da Agricultura e Abastecimento do Estado de São Paulo, São Paulo, Brazil. kesteves@uol.com.br
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MeSH Terms
Descriptor/Qualifier:
Animals
Behavior, Animal*
Brazil
Diet*
Fishes / physiology*
Food Habits / classification
Seasons

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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