External Morphology and Weight - Length Relationships (WLRs) of Harbour Porpoise, Phocoena phocoena (Cetacea: Phocoenidae) in the Black Sea

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dc.authoridKose, Ozay/0000-0002-3565-160X
dc.authoridBilgin, Sabri/0000-0003-0155-8981
dc.authorid, sabri/0000-0003-2321-547X
dc.authoridYESILCICEK, TUNCAY/0000-0002-3236-8227
dc.contributor.authorBilgin, Sabri
dc.contributor.authorKose, Ozay
dc.contributor.authorYesilcicek, Tuncay
dc.date.accessioned2025-03-23T19:25:59Z
dc.date.available2025-03-23T19:25:59Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractThe present study summarized information on the morphometric characteristics and weight-length relationships (WLRs) of pregnant females, non-pregnant females and males of harbour porpoise, Phocoena phocoena (Linnaeus, 1758) along the Rize coast in the Black Sea, Turkey. A total of 68 harbour porpoises (31 males, 22 non-pregnant females and 15 pregnant females) were obtained as bycatch in the turbot gill net fisheries from April 2010 to July 2011. A total of 16 external morphological characteristics of the harbour porpoises were examined by Principal Component Analysis (PCA). The PCA results clearly showed that there is sexual dimorphism mainly in the general size between non-pregnant females and males and also pregnant females and males. The greatest body length in the sample was 142.0 cm for females and 128.0 cm for males. Weight-length relationships (WLRs) of harbour porpoise showed negative allometric growth characteristics (Pauly' t test, P<0.05). The slopes of the regression lines for males, non-pregnant females and pregnant females were significantly different from the isometric growth curve slope of 3 (Pauly' t test, P<0.001). Correlation coefficient (r) was significant for both sexes (P<0.05). These results will enable researchers, fishermen and fisheries management authorities to enhance the knowledge of harbour porpoises life history and ecology.
dc.description.sponsorshipRecep Tayyip Erdogan University [BAP 2010.103.03.2]
dc.description.sponsorshipThe authors thank fishermen Sami Akmermer, Kazim Akmermer Ugur Akmermer and Ahmet Kalkavan for their help during the field studies. This study was supported by the Recep Tayyip Erdogan University, Scientific Research Project (BAP 2010.103.03.2).
dc.identifier.doi10.4194/1303-2712-v20_3_06
dc.identifier.endpage228
dc.identifier.issn1303-2712
dc.identifier.issn2149-181X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85073411013
dc.identifier.scopusqualityQ2
dc.identifier.startpage221
dc.identifier.urihttps://doi.org/10.4194/1303-2712-v20_3_06
dc.identifier.urihttps://hdl.handle.net/11486/4587
dc.identifier.volume20
dc.identifier.wosWOS:000486924400006
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherCentral Fisheries Research Inst
dc.relation.ispartofTurkish Journal of Fisheries and Aquatic Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectHarbour Porpoise
dc.subjectPhocoena phocoena
dc.subjectCetacea
dc.subjectMorphometric
dc.subjectBlack Sea
dc.titleExternal Morphology and Weight - Length Relationships (WLRs) of Harbour Porpoise, Phocoena phocoena (Cetacea: Phocoenidae) in the Black Sea
dc.typeArticle

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