Les activités de production - conchyliculture

These studies of halieutic ecology produced at the request of Electricité de France by the French Institute of Research for Exploitation of the Sea in the Normand Breton Gulf must constitute one of the elements making it possible to come to a conclusion or not on the feasibility of the tidal power plant construction project; these studies have three parts: The first part discusses halieutic zooplankton. In the first place, the main species that constitute the exploitable living resources are considered, observed from the first stages of their life, in the egg or at different larval stages preceding the juvenile state. Also of interest are certain holoplanktonic groups. The whole of these observations establishes the status of zooplanktonic populations previous to the possible construction of a tidal power plant. The second part is devoted on the one hand to reports and the analysis of professional fishing activities, and on the other hand to a study of movements and distribution, indispensable items for determining the dynamics of the whelk population. Finally, the third part discusses shellfish farming, which is almost exclusively dedicated to oyster and mussel breeding.