Growth Weight and Reproductive Cycle in the Mussel (Mytilus Galloprovincialis) from Cala Iris Sea of Al Hoceima (Northern Morocco)

EasyChair Preprint 2857

Abstract

This work aims to evaluate a link between weight variations of the mediterranean mussel Mytilus galloprovincialis, condition index and the environmental parameters. In order to determine the growth parameters (shell length, total weight, fresh and dry shell and mass tissue weight) of the bivalve. Sampling Mytilus galloprovincialis were collected from the mussel farm located along the coastline of Al Hoceima (Moroccan mediterranean sea), during the period 2016. The environmental parameters were recorded at the same sampling site. The results show that, the physicochemical parameters affect the growth parameters, condition index and the reproductive cycle of M. galloprovincialis. The condition index variation is a function of weight, which is itself a function of the sexual cycle as well as the availability of food. The period of the maximum of gain weight was observed in spring and summer periods, which correspond to the high value of the condition index, and was associated with the gonadal maturation. The lowest values of CI observed in February (8.71) and May (8.63) coincided with the spawning periods. The knowledge of the gonad cycle and physicochemical factors that could affect them may constitute a basic data, necessary to choose mussel farming sites, and for a commercial exploitation of the bivalves in this part of the mediterranean sea.

Keyphrases: Al Hoceima coastline, Environmental Parameters, Mytilus galloprovincialis, growth, reproductive cycle

@booklet{EasyChair:2857,
  author    = {Ghizlane Azizi and Mostafa Layachi and Mustapha Akodad and Mourad Baghour and Ali Skalli and Abdelmajid Moumen},
  title     = {Growth Weight and Reproductive Cycle in the Mussel (Mytilus Galloprovincialis) from Cala Iris Sea of Al Hoceima (Northern Morocco)},
  howpublished = {EasyChair Preprint 2857},
  year      = {EasyChair, 2020}}