Energy density of freshwater Patagonian organisms

CIANCIO, J.E; PASCUAL, M.A.

ECOLOGÍA AUSTRAL

ASOCIACIÓN ARGENTINA DE ECOLOGÝA

Año: 2006 vol. 16 p. 91 - 94

0327-5477

Using a bomb calorimeter we assessed the energy density of the main species of Patagonian freshwater ecosystems, including fish, crustaceans, gastropods, oligochaetes, and insects. Fish (5048-5789 Cal/g) were the most energy density group followed by insects (5062-5232), crustaceans (3364-3994), oligochaetes (3471), and gastropods (1143). These data consist on the first direct energy density estimations of freshwater species and are intended as baseline information for modelling the energy fluxes in Patagonian freshwater ecosystems.