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

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dc.contributor.author MEZALI, Karim
dc.contributor.author SOUALILI, Dina Lila
dc.contributor.author NEGHLI, Larbi
dc.contributor.author CONAND, Chantal
dc.date.accessioned 2018-10-17T20:14:32Z
dc.date.available 2018-10-17T20:14:32Z
dc.date.issued 2014
dc.identifier.other http://dx.doi.org/10.1080/07924259.2014.883337
dc.identifier.uri http://hdl.handle.net/123456789/785
dc.description.abstract This study is a first contribution on the reproductive biology of Holothuria (Platyperona) sanctori from the Algerian coastline in the southwestern Mediterranean. Sampling was conducted at two sites in central Algeria, one (Ain Taggourait, w. Tipasa) where there is little anthropogenic influence and another (Tamentefoust, w. Alger) where there are two major sources of pollution from Oued el Harrach and Oued el Hamiz effluents which contain particulate organic matter. Significant differences in sea cucumber reproduction were observed between the two sites. This could be due to the difference in organic matter noted in the sediment of the two study sites. However, temporal similarities of the gonad index (GI) and the sexual maturity stages suggest that the reproductive cycle of H. (P.) sanctori is annual with the main spawning event taking place from June to October. Spawning is of high intensity in the Bay of Bou Ismail (Ain Taggourait) and spread out over time in the Bay of Algiers (Tamentefoust), reflecting an environment sufficiently rich in food to insure reproduction. We also show that gonad maturation of males and females was synchronized. Temperature is the most likely factor influencing the reproductive cycle and spawning. At the study sites, H. (P.) sanctori had a winter sexual resting phase, followed by maturation during spring, before spawning in summer. However, there was a slight lag to the start of spawning at the two study sites. en_US
dc.language.iso en en_US
dc.publisher Invertebrate reproduction and development en_US
dc.subject holothurians en_US
dc.subject Aspidochirotida en_US
dc.subject reproduction en_US
dc.subject spawning en_US
dc.subject environmental factors en_US
dc.subject Algerian basin en_US
dc.title Reproductive cycle of the sea cucumber Holothuria (Platyperona) sanctori (Holothuroidea: Echinodermata) in the southwestern Mediterranean Sea: interpopulation variability en_US
dc.type Article en_US


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