Variations annuelles de la teneur en matières grasses de trois clupéides du Sénégal (Ethmalosa fimbriata BOWDICH, sardinella EBA C.V., sardinella aurita C. V.)

In accordance with our original goal, this first study enabled us to find, for lack of previous data, the main aspects of the annual variations of the fat rate in the three most economically important herrings in Senegal. This exploration work forms an essential basis to set our future research protocols. It enabled us to specify the number of samples needed and their time distribution, in order to determine more precisely the annual biochemical variations of the studied fishes. The study of the biochemical transformations according to the environment also enabled us to foresee the existence of some correlations we aim to clarify in the future.