Variation de l’accumulation du lindane chez les alevins de Liza ramada

Abstract

During the recruitment season, Liza ramada fry were captured from “Khélij” Wadi outlet. The samples divided into three different size groups (class I :19,4  1,3 mm ; class II : 45,5  5,3 mm and class III : 63,2  6,3mm) were analysed for organochlorines pesticides residues. Results point out a significant reduction of lindane ( HCH) residues levels : Their concentration pass from 57,42 to 12,67 ng/g fat weight with the increase of the fry size. This reduction is probably due to an improvement with the age of the metabolic capacities of species towards the contaminant. Of another side Liza ramada seems to impoverish its fat reserves to acquire energy necessary to its growth