DSpace Repository

Contribution à la biologie de la reproduction de trois espèces de "concombres de mer" (Holothuria tubulosa, H. poli et H. sanctori) de la côte ouest algérienne (Ain Franine).

Show simple item record

dc.contributor.author HEDDAR, Assia
dc.contributor.author AGBOUBI, Djamila
dc.date.accessioned 2018-11-29T10:22:21Z
dc.date.available 2018-11-29T10:22:21Z
dc.date.issued 2017
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/3639
dc.description.abstract Our work is a contribution to the study of the reproductive biology of three aspidochirotid holothurians [Holothuria (Holothuria) tubulosa, Holothuria (Roweothuria) poli et Holothuria (Platyperona) sanctori] that belong to the group of Echinoderms and which have great commercial value. Our survey is based on an annual provided sample and compiled monthly (from July 2016 to May 2017) in the site of Ain-Franin (Oran). The macroscopic and morphometric characteristics of the gonads, the maturity stages as well as the monthly survey of the mean values of Gonadosomatic index (mGSI) have been established. The obtained results on the evolution of the mGSI and the morphometric characteristics of the gonads of the three species show three major phases in the gonadal development: the Gonad maturation phase which begins in December and ends in August; followed by the spawning which coincides with the increase of the sea water temperature (July and August). Sexual resting occurs immediately after the decreases of the sea water temperature in October. Through this study we concluded that the sexual reproduction cycle of the three studied gonochorics species, generally follows identical patterns to that already described for the majority of the aspidochirotid sea cucumbers inhabiting the temperate areas. en_US
dc.language.iso fr en_US
dc.subject Aspidochirotid holothurians en_US
dc.subject Reproduction en_US
dc.subject macroscopic characteristics en_US
dc.subject morphometry en_US
dc.subject gonadic tubules en_US
dc.subject gonado-somatic index en_US
dc.subject Ain Franin en_US
dc.subject Oran en_US
dc.subject Holothuries aspidochirotes en_US
dc.subject Reproduction en_US
dc.subject Caractéristiques macroscopique en_US
dc.subject Morphométrie en_US
dc.subject Tubules gonadiques en_US
dc.subject Indice gonado-somatique en_US
dc.title Contribution à la biologie de la reproduction de trois espèces de "concombres de mer" (Holothuria tubulosa, H. poli et H. sanctori) de la côte ouest algérienne (Ain Franine). en_US
dc.type Other en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account