Relaciones trólicas de los juveniles de cinco especies de pargo (Pisces: Lutjanidae) en Cuba

Abstract

The trophic relationships among juveniles of lane snapper. Lutjanus synagris, gray snapper. Lutjanus griseus, mutton snapper. Lutjanus analis. schoolmaster. Lutjanus apodus and yellowtail snapper. Ocyurus chrysurus in the inlet of Punta Arenas. SW shelf of Cuba, were analized. Analyses were made of 1393 stomachs of the yellowtail snapper, 367 of the lane snapper, 110 of the muttom snapper, 80 of the gray snapper and 24 of the schoolmaster in order to obtain their feedings spectrum. The main food was benthic crustaceans (shrimps and crabs) and postlarval fishes and juveniles. The juveniles of O. chrysurus L. synagris y griseus)were similar in their diets. They feed mainly on postlarval fishes and juveniles as well as small shrimps. Some changes of feeding spectra were observed during growth in the five species. On reaching the first year of life, the juveniles attain the feeding habits of lhe adults.