Abstract
To contribute to mass balanced trophic model parametrization, estimates of annual food consumption/biomass ratio (Q/B) were compiled for 37 selected fish species of the Curuçá Estuary in Northern Brazil using an empirical model. Samples were taken bimonthly between July 2003 and July 2004 in the main channel and intertidal creeks using an otter trawl and a fyke net, respectively.
Highlights
One of the most important aspects of ecological studies lies in understanding the ecosystems through their trophic fluxes with regard to energy assimilation, transfer and dissipation (BAIRD; ULANOWICZ, 1993)
Consumption is the intake of food by a species over a time period, expressed on an annual basis (CHRISTENSEN; PAULY, 1993)
Estimates of Q/B ratio are lacking for most tropical fish species
Summary
One of the most important aspects of ecological studies lies in understanding the ecosystems through their trophic fluxes with regard to energy assimilation, transfer and dissipation (BAIRD; ULANOWICZ, 1993). O aspect ratio da nadadeira caudal variou entre 0,8 para Poecilia vivipara e 4,6 para Sciades herzbergii e o Q/B variou de 2,3 para Epinephelus itajara para 67,3 para Cetengraulis edentulus.
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