Ertan DAĞLI, Güley ŞAHİN KURT, Murat Sezgin, Zeynep CENGİZ

First Record of Ophelia bicornisSavigny in Lamarck, 1818 (Polychaeta: Opheliidae) from the Turkish Coast of the Black Sea (Sinop Peninsula) with EcologicalFeatures

Bu makale Sinop Yarımadası'nda (Karadeniz, Türkiye) Ağustos 2009 ve Temmuz 2010 tarihleri arasında 4 istasyondan aylık olarak toplanan Ophelia bicornis Savigny in Lamarck, 1818'in ekolojik ve morfometrik özellikleri hakkındadır. Bu çalışmanın amacı O. bicornis'i Karadeniz'in Türkiye kıyılarından ilk kez rapor etmek ve Sinop Yarımadası kıyılarındaki populasyon yoğunluğunu tespit etmektir. Çalışma bölgesinde toplam 699 adet O. bicornis bireyi toplanmıştır. En yüksek ve en düşük yoğunluk A istasyonunda sonbaharda (sırasıyla Ekim, Kasım) saptanmıştır. O. bicornis'in dişi bireyleri Mayıs ve Ekim ayları arasında kaydedilmiştir. Boy (mm)-Ağırlık (g) ilişkisi için hesaplanan regresyon formülü W=0,0002×TL2,11 olarak hesaplanmıştır ve bu sonuç O. bicornis'in allometrik olarak büyüdüğünü göstermektedir. O. bicornis biyokütlesi ve birey sayısı ile kaba kum tane boyu yüzdesi arasında istatistiksel olarak anlamlı ilişki olduğu tespit edilmiştir

Ophelia bicornisSavigny in Lamarck, 1818 (Polychaeta: Opheliidae)'in Karadeniz (Sinop Yarımadası)'in Türkiye Kıyılarından İlk Kaydıve Ekolojik Özellikleri

The present paper deals with ecological and morphometric features of Ophelia bicornis Savigny in Lamarck, 1818 collected monthly from the Sinop Peninsula (Black Sea, Turkey) between August 2009 and July 2010 from 4 stations. This study aimed to report the polychaete for the first time from the Turkish coast of the Black Sea and to determine the population density of O. bicornis on the coasts of the Sinop Peninsula. A total of 699 individuals of O. bicornis were collected. The maximum and minimum density was counted at station A in autumn (October, November, respectively). The female individuals of O. bicornis were recorded between May and October. The regression formula for the length (mm)-weight (g) relationship was found to be W=0.0002×TL2.11, indicating that the growth for O. bicornis is allometric. The statistically significant correlation between percentages of coarse sand and number of individuals and biomass of O. bicornis were estimated

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