Population dynamics and ecology of the invasive veined rapa whelk, Rapana venosa in the southern Black Sea

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dc.authoridKIDEYS, AHMET ERKAN/0000-0002-1113-2434
dc.authoridSahin, Fatih/0000-0003-0605-2672
dc.authoridKarayucel, Sedat/0000-0002-3874-1010
dc.authoridBat, Levent/0000-0002-2289-6691
dc.contributor.authorMutlu, Erhan
dc.contributor.authorKideys, Ahmet E.
dc.contributor.authorSahin, Fatih
dc.contributor.authorErik, Gokhan
dc.contributor.authorAksu, Hakan
dc.contributor.authorErdem, Ercan
dc.contributor.authorKarayucel, Sedat
dc.date.accessioned2025-03-23T19:41:45Z
dc.date.available2025-03-23T19:41:45Z
dc.date.issued2022
dc.departmentSinop Üniversitesi
dc.description.abstractSpatial and temporal changes in some ecological characteristics (i.e. biomass, abundance, morphometrics, sex composition, growth parameters and population dynamics) of the invasive veined rapa whelk (Rapana venosa) were studied off Sinop Bay, in the southern Black Sea. The whelk specimens were sampled from three depths (15 m, 25 m and 35 m) at monthly intervals between November 2005 and October 2007. Custom-made pots were deployed for the capture of R. venosa individuals. Monthly distributions in whelk biomass and abundance peaked in summer (June/July) and mid-autumn (October) and displayed no differences between 2006 and 2007. With the exception of gut weight, all morphometric variables produced three peak periods (January, June and September, respectively) over one year. Densities, morphometrics and sex composition were dictated significantly by bottom depth and monthly variation. Two stages were defined in the ovary and testis index maxima denoting longer spawning and recruitments periods starting as early as in March which is a different finding compared to previous studies from the Black Sea. For the estimation of population growth parameters, of the five morphometric variables analysed, siphon width was the best variable to produce clear size cohorts. Whelk growth in terms of shell length and width oscillated seasonally and ceased during February-March. Maximum age of the veined rapa whelk in the southern Black Sea was determined as 3.5 years corresponding to 7 cohorts. Among the environmental parameters, dissolved oxygen, temperature and salinity appeared to affect whelk densities. Results obtained here are important for better management of the whelk fishery in the Black Sea.
dc.description.sponsorshipState Planning Organization of Turkey [BAP-07-01-DPT.2003K120540-18]
dc.description.sponsorshipAcknowledgment The present study was funded by the State Planning Organization of Turkey, grant no: BAP-07-01-DPT.2003K120540-18, initially coordi-nated by Ahmet Erkan Kideys and subsequently Erhan Mutlu. We thank Alison M. Kideys for correcting English of the text, and two anonymous reviewers for their constructive comments.
dc.identifier.doi10.1016/j.ecss.2022.107807
dc.identifier.issn0272-7714
dc.identifier.issn1096-0015
dc.identifier.scopus2-s2.0-85125664948
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.ecss.2022.107807
dc.identifier.urihttps://hdl.handle.net/11486/6637
dc.identifier.volume268
dc.identifier.wosWOS:000793274800002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAcademic Press Ltd- Elsevier Science Ltd
dc.relation.ispartofEstuarine Coastal and Shelf Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectRapa whelk
dc.subjectBlack sea
dc.subjectDistribution
dc.subjectPopulation dynamics
dc.subjectGrowth
dc.subjectEcology
dc.titlePopulation dynamics and ecology of the invasive veined rapa whelk, Rapana venosa in the southern Black Sea
dc.typeArticle

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