REPRODUCTION CYCLES OF VEINED RAPA WHELK (Rapana Venosa, VALENCIENNES 1846) IN THE MIDDLE BLACK SEA (YAKAKENT, SAMSUN)

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dc.contributor.authorYildiz, Harun
dc.contributor.authorGunduz, Fettah
dc.date.accessioned2025-01-27T20:16:34Z
dc.date.available2025-01-27T20:16:34Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe veined Rapa whelk, Rapana venosa (Valenciennes, 1846), have a significant commercial value in Turkey. This study was carried out between December 2013 and November 2014 in the Black Sea. R. venosa was collected to determine the reproductive cycle, the gonadosomatic index, gonad index. Monthly variation in gonad development stages revealed that R. venosa has an annual reproductive cycle and long gonadal activity period. Spawning occurred mainly between May and July and peaked in July and in September. The gonad development stages of males and females differed significantly (P<0.05) between months. In November, 1 out of 30 samples were found as a hermaphrodite, containing both sperm and eggs in the same area. Male individuals were dominant during the study period (1.0:2.4 female: male).
dc.description.sponsorshipCanakkale Onsekiz Mart University The Scientific Research Coordination Unit [COMUBAP-FYL-2014-275]
dc.description.sponsorshipThis. manuscript is a part of the MSc thesis of Fettah GUNDUZ titled Determine the reproduction characteristic of rapa whelk (Rapana venosa, Valenciennes, 1846) in Middle Black Sea region (Yakakent-Samsun), Special thanks to canakkale Onsekiz Mart University The Scientific Research Coordination Unit that financially supported the study with project number COMUBAP-FYL-2014-275. Lab experiments were carried out in the laboratory of Biochemistry and Histology, Faculty of Marine Sciences and Technology, canakkale Onsekiz Mart University, canakkale, Turkey,
dc.identifier.endpage6829
dc.identifier.issn1018-4619
dc.identifier.issn1610-2304
dc.identifier.issue7
dc.identifier.startpage6819
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21300
dc.identifier.volume31
dc.identifier.wosWOS:000823048300004
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherParlar Scientific Publications (P S P)
dc.relation.ispartofFresenius Environmental Bulletin
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectVeined rapa whelk
dc.subjectRapana venosa
dc.subjectreproduction
dc.subjectsex ratio
dc.subjecthermaphrodite
dc.subjectBlack Sea
dc.titleREPRODUCTION CYCLES OF VEINED RAPA WHELK (Rapana Venosa, VALENCIENNES 1846) IN THE MIDDLE BLACK SEA (YAKAKENT, SAMSUN)
dc.typeArticle

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