Reproductive cycle of the sea cucumber Holothuria (Platyperona) sanctori (Holothuroidea: Echinodermata) in the southwestern Mediterranean Sea: interpopulation variability

摘要: This study is a first contribution on the reproductive biology of Holothuria (Platyperona) sanctori from Algerian coastline in southwestern Mediterranean. Sampling was conducted at two sites central Algeria, one (Ain Taggourait, w. Tipasa) where there little anthropogenic influence and another (Tamentefoust, Alger) are major sources pollution Oued el Harrach Hamiz effluents which contain particulate organic matter. Significant differences sea cucumber reproduction were observed between sites. could be due to difference matter noted sediment However, temporal similarities gonad index (GI) sexual maturity stages suggest that cycle H. (P.) annual with main spawning event taking place June October. Spawning high intensity Bay Bou Ismail Taggourait) spread out over time Algiers (Tamentefoust), reflect...