article
Alimentação, evacuação gástrica e cronologia da digestão de jovens de pintado Pseudoplatystoma corruscans (Siluriformes, Pimelodidae) e suas relações com a temperatura ambiente
Feeding, gastric evacuation and digestion cronology of young pintado Pseudoplatystoma corruscans (Siluriformes, Pimelodidae) and their relation with the environmental temperature
Autor
MARQUES, E.E.; AGOSTINHO, A.A.; SAMPAIO, A.A.; AGOSTINHO, C.S.
Institución
Resumen
MARQUES, Elineide Eugênio; AGOSTINHO, Angelo Antonio; SAMPAIO, Adelbar Antônio; AGOSTINHO, Carlos Sérgio. Alimentação, evacuação gástrica e cronologia da digestão de jovens de pintado Pseudoplatystoma corruscans (Siluriformes, Pimelodidae) e suas relações com a temperatura ambiente. Revista Unimar, Maringá, v.14, supl., p.207-221, 1992. The rate of gastric evacuation and the food intake frequency in "pintado" Pseudoplatystoma corruscans were studied at different temperatures (20,2, 25,1, 30,1 and 34,9°C). The rate of gastric evacuation at different temperature and the rate of instantaneous evacuation (b) in relation to the temperature were described by a negative and positive linear function, respectively. The food ingestion was higher at 30,1ºC. Four degrees of digestion were established based on macroscopical description of the gastric contents.