Life history of spiny dogfish, Squalus acanthias (L. 1758), in the southern Black Sea

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dc.contributor.authorDemirhan, Sefa Ayhan
dc.contributor.authorSeyhan, Kadir
dc.date.accessioned2024-09-18T19:52:29Z
dc.date.available2024-09-18T19:52:29Z
dc.date.issued2007
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractAge, growth parameters and food of Squalus acanthias L., spiny dogfish sampled from the SE Black Sea were studied. First and second dorsal spines were used for ageing. Spiny dogfish from age classes I to 38 were identified with an age distribution of 2-38 years for females and 1-27 for males. The length-weight relationship was W = 0.0000004 x L-3.5 and W = 0.0000008 x L-3.32 for females and males, respectively. The estimated von Bertalanffy growth parameters were; L-infinity = 137.73 (+/-1.22) cm, K = 0.1263 (+/-0.0073) (year(-1)), t(0) = 1.67 (+/-0.25) (year) (r(2) = 0.93) for females, L-infinity = 123.78 (+/-4.85) cm, K = 0.168 (+/-0.024) (year(-1)), t(0) = 2.62 (year) (r(2) = 0.96) for males and L-infinity = 136.76 (+/-1.42) cm, K = 0.133 (+/-0.006) (year(-1)), t(0) = 2.15 (+/-0.178) (year) (r(2) = 0.95) for sexes combined. They feed mainly on fish (IRI% = 97.63) and crustaceans (IRI% = 2.23). Whiting was the main prey item in all seasons (IRI% = 87.81) except for winter where they feed mainly on anchovy (IRI% = 96.46). The stomach fullness and dietary component were affected by the gear used as well as seasons. It was concluded that the abundance and availability of the prey are main factors for the spiny dogfish feeding strategy in the Black Sea. (C) 2007 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.fishres.2007.02.009
dc.identifier.endpage216en_US
dc.identifier.issn0165-7836
dc.identifier.issn1872-6763
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-34147131657en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage210en_US
dc.identifier.urihttps://doi.org/10.1016/j.fishres.2007.02.009
dc.identifier.urihttps://hdl.handle.net/20.500.12483/7456
dc.identifier.volume85en_US
dc.identifier.wosWOS:000246414200024en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofFisheries Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectageen_US
dc.subjectgrowthen_US
dc.subjectfooden_US
dc.subjectSqualus acanthiasen_US
dc.subjectSoutheastern Black Seaen_US
dc.titleLife history of spiny dogfish, Squalus acanthias (L. 1758), in the southern Black Seaen_US
dc.typeArticleen_US

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