The determination of sexual size dimorphism in long-snouted seahorse (Hippocampus guttulatus Cuvier, 1829) from the coast of Aegean sea

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dc.contributor.authorGurkan, Sule
dc.date.accessioned2020-12-01T12:02:07Z
dc.date.available2020-12-01T12:02:07Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractThe study investigates the sexual dimorphism in 205 samples (female:98; male:107) consisting of newly deceased fishes seen in the fishnets of the commercial fishers and long-snouted seahorses (Hippocampus guttulatus Cuvier, 1829) obtained in two research projects, in the coasts of Aegean Sea. All samples were divided by their standard-length groups (I: 60-89 mm; II: 90-120 mm; III: > 121 mm) of morphometric measurements. the sexes of the species differed in terms of tail length (TaL), dorsal fin base length (DL), trunk depth (TD9-10), and trunk length (TrL) (P < 0.05). Accordingly, it was determined that the positively allometric growth TD9-10, DL, and TaL values in male seahorses were higher than those of the female seahorses. the females were longer than the males in terms of TrL. However, sexual differences according to the length groups in male seahorses were significant starting from the length group II. Sexual dimorphism seen in the body parts is more likely effective in the development of eggs that the males took from the females related with the sexual selection pressure, while the longer tails and dorsal fins suggested that male seahorses were more advantageous in balancing their body weight during mating behaviors (tail grabbing and courtship etc.). in this research, as H. guttulatus distributed in the coasts of the Aegean Sea showed differentiation starting from length group II, it is understood that, there was a sexual dimorphism in terms of TrL and TaL which determine the body size in mate selection.en_US
dc.description.sponsorship[2001 SUF 003]; [2006 SUF 017]en_US
dc.description.sponsorshipI would like to thank the contributors of the research projects No. 2001 SUF 003 and No. 2006 SUF 017 because of their support in supplying some of the fish samples used in the study. I am also very grateful to the fellow scientist and my professor, Prof. Dr. Ertan Taskavak, whose knowledge and experience had guided me during the preparation of the study.en_US
dc.identifier.endpage397en_US
dc.identifier.issn0379-5136
dc.identifier.issn0975-1033
dc.identifier.issn0379-5136en_US
dc.identifier.issn0975-1033en_US
dc.identifier.issue3en_US
dc.identifier.startpage390en_US
dc.identifier.urihttps://hdl.handle.net/11454/62595
dc.identifier.volume49en_US
dc.identifier.wosWOS:000536815100007en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherNatl Inst Science Communication-Niscairen_US
dc.relation.ispartofIndian Journal of Geo-Marine Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBody proportionen_US
dc.subjectMorphometryen_US
dc.subjectSex differencesen_US
dc.subjectSexual differenceen_US
dc.titleThe determination of sexual size dimorphism in long-snouted seahorse (Hippocampus guttulatus Cuvier, 1829) from the coast of Aegean seaen_US
dc.typeArticleen_US

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