The objective of this study was to assess the effect of a carbohydrate-rich and a high-protein diets on metabolism of Aegla platensis, a freshwater anomuram crab. The animals were collected in Mineiro Creek, Taquara city, Rio Grande do Sul, at august/2002 and january/2003, and were feed during 15 days with crude bovine meat and white rice, in an aerated aquarium. The photoperiod was controlled: 12 hours day - 12 hours night. Glucose, proteins, lipids and triglycerides were dosed in haemolymph; glycogen and lipids were dosed in hepatopancreas, gills and muscle tissues. In Aegla platensis, maintained in laboratory conditions, in all studied tissues can be seen that the regular food intake, as well as the kind of administered diet determinated a differential profile of metabolic response between sexes and the period of the experiments performance (winter and summer).
Heamolymph; metabolism; tissues
