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Provedor de dados:  BABT
País:  Brazil
Título:  Caloric density of Loricariichthys platymetopon (Osteichthyes, Loricariidae) in the Upper Paraná River floodplain, Brazil
Autores:  Garcia,Daniela Aparecida
Benedito,Evanilde
Takeda,Alice Michiyo
Data:  2010-10-01
Ano:  2010
Palavras-chave:  Energy
Detritivorous fish
Direct calorimetry
Muscle
Floodplain
Resumo:  This study analyzed the muscle energy content (caloric density) of L. platymetopon captured at different sites of the Upper Paraná River floodplain, and potential relationships between the content and various environmental variables (water temperature, oxygen dissolved in water, food availability, relative numeric abundance) and biological variables (body size and reproductive cycle). Quarterly samplings from September 2006 to June 2007 in the lakes and rivers resulted in a sample of 739 specimens, whose muscle caloric density was determined using a calorimeter. Differences between the caloric averages of the males and females and among the different stages of gonadal development were not significant. Caloric density varied over time and space, with two seasonal variation trends. The intensity of the correlation between the caloric density and each environmental variable, as well as the type of correlation, varied according to the sampled site. Body size and reproductive cycle were not correlated with caloric density.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500015
Editor:  Instituto de Tecnologia do Paraná - Tecpar
Relação:  10.1590/S1516-89132010000500015
Formato:  text/html
Fonte:  Brazilian Archives of Biology and Technology v.53 n.5 2010
Direitos:  info:eu-repo/semantics/openAccess
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