4 resultados para patron alimentaire

em Aquatic Commons


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The food of Dentex angolensis, studied from 386 stomachs, consists essentially of small epibenthic crustaceans and, with less importance, of fishes. A systematic list with abundance and occurrence is given here. It is noted that the composition of the stomach content can differ with depth and season.

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Stomach contents from 21 species of demersal fish caught on Grand Bassam (Côte d'Ivoire) fishing grounds at 20 and 35 m depth are analyzed. The results are compared with those of Longhurst (1957, 1960). The great importance of Crustacea in the food of those species appears clearly. A representative scheme of the diet is suggested.

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Elops lacerta is a juvenil's predator of all the fish species living in the same biotope. its preys follow three systematic orders: 1 - Fishes: they are the most important in the stomachal contents of Elops lacerta, and are dominated by clupeidae, mainly by Ethmalosa fimbriata; 2 - Shrimps: mainly the Peneidae, are not very important; 3 - Molluscs: they are the less important preys and are represented by only one Pelecypoda family: the Corbulidae. This earlier predator feeds rather at night than during the day. It has neither preferential prey nor apparent seasonal variations in its food habits.