The Seasonally Determination of Disc Diameter-Weight Relationship of Moon Jellyfish Aurelia aurita in the Black Sea Coasts of Turkey

Abstract

In this study, seasonal disc diameter-weight relationship of moon jellyfish (Aurelia aurita) were determined in the Black Sea coasts of Turkey. The samples of jellyfish were collected monthly from Sinop coasts in the southern Black Sea between December 2012 and November 2013 with plankton net. A total 1358 moon jellyfish were measurement in the study. Mean length and weight of all individuals were established, 8.3±0.10 cm and 43.2±1.58 g respectively. Disc diameter-weight relationship of moon jellyfish were calculated as Ww=0.1207L^2.5887 for general, Ww=0.1251L^2.5567 for autumn, Ww=0.0815L^2.7181 for winter, Ww=0.1012 L^2.6813 for spring and Ww=0.1289L^2.6844 for summer. The results showed that “a” and “b” value of moon jellyfish varied with seasons in the Black Sea coasts.

Keywords

• Moon jellyfish,Aurelia aurita,Disc diameter-weight relationship,Season,Black Sea

Türkiye’nin Karadeniz Kıyılarındaki Ay Denizanası (Aurelia aurita)’nın Çap-Ağırlık İlişkisinin Mevsimsel Olarak Belirlenmesi

Abstract

Bu araştırmada Türkiye’nin Karadeniz kıyılarındaki ay denizanası (Aurelia aurita)’nın mevsimsel olarak çap-ağırlık ilişkileri belirlenmiştir. Denizanası örnekleri aylık olarak Aralık 2012-Kasım 2013 tarihleri arasında Güney Karadeniz’in Sinop kıyılarından plankton ağı ile toplanmıştır. Çalışmada 1358 adet denizanasının çap ve ağırlığı ölçülmüştür. Tüm denizanaları için ortama boy ve ağırlıkları 8.3±0.10 cm ve 43.2±1.58 g olarak tespit edilmiştir. Denizanalarının çap-ağırlık ilişikleri tümü için W_w=0.1207L^2.5887, sonbahar için W_w=0.1251L^2.5567, kış için W_w=0.0815L^2.718, ilkbahar için W_w=0.1012 L^2.6813 ve yaz için W_w=0.1289L^2.6844 olarak hesaplanmıştır. Bu sonuçlar Karadeniz kıyılarındaki ay denizanasının “a” ve “b” değerlerinin mevsimsel olarak değiştiğini göstermiştir.

Keywords

• Ay deniz anası,Aurelia aurita,Çap-Ağırlık ilişkisi,Mevsim,Karadeniz

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