Etude du régime alimentaire chez quelques espèces d'Holothuries aspidochirates inféodées aux herbiers du Posidonic de la cote de Mostaganem (Salamandre)

Abstract

A study of the diet of some of the coastal area of Mostaganem (Salamandre) was performed species. Sources studied trophic Sea cucumbers are mainly composed of Posidonia leaves, diatoms, foraminifera, Cyanophyceae macrophytes and algae. The contribution of these sources may change depending on the month and the species studied. This is the foraminifera that constitute the staple food in all of Sea Cucumbers in order to have an overview of the contribution of different trophic sources of the se benthic animals eaten cucumber studied, followed by macrophytes algae; diatoms are not very studied by the Sea cucumbers, while Posidonia constitutes a food of choice for H. tubulosa and H. forskali. These two species might be the most interesting in terms of organic matter produced by transfer of Posidonia Oceanica, the time they select the leaves of this throughout the four I study.