Feeding and growth coupling during different development larvae phases of the Mediterranean mussel Mytilus galloprovincialis L. from Amsa Bay

Spat supply for mussel farming in Morocco is essentially based on seed capture and collection from natural beds. However, irregularity recruitment exploited areas encountered difficulties during spat operations have led to develop improve reproduction techniques under controlled conditions hatcheries. The present study focused the larvae phase aiming at assessing growth rate varies between different development stages. Trocophore larva stage had a size of 63.25 μm reached pedivilegere with 272.56 18 culture days. Length was more significant than width both H-batch T-batch. For instance, grew terms length quickly T-batch (11.10± 1.30 9.67 ± 1.17 day -1 ), same pattern observed larvae. Inversely, total biomass consumed higher rearing ones. In contrast, effect feeding significantly (t=7.55, df=23, p<0.001) ones (t=4.13, p<0.001). specific revealed I. galbana batches rather C. calcitrans T. suecica . reduction linked beginning tissue synthesis.