MEHMET AYDIN, Uğur KARADURMUŞ, Murat ERBAY

Length-weight relationships and reproduction characteristics of Liocarcinus navigator (Herbst, 1794)

Bu araştırmada Orta Karadeniz Bölgesi’nde Liocarcinus navigator yengeç türünün karapaks boy/genişlik ile boy/ağırlık arasındaki ilişkiler ve üreme özellikleri araştırılmıştır. Araştırma boyunca ölçülen 637 adet yengecin 48 (%7,6) adeti erkek, 589 (%92,4) adeti dişi bireylerden oluşmaktadır. Karapaks boyları 1,7-2,22 cm arasında değişmekte olup, her iki cinsiyetinde ortalama karapaks boyu 1,73cm + 0,17 olarak tespit edilmiştir. Yengeçlere ait minimum ve maksimum ağırlıklar 1,08-6,23 g ve ortalama ağırlıkları 2,91g± 0,81 olarak hesaplanmıştır. Araştırmada incelenen bütün bireylerin karapaks boyu (L) / genişliği (CW) ve karapaks boyu (L) / ağırlığı (W) arasındaki ilişkiler W=0,7157 L2,526 (R2=0,79) ve W=0,4433 CW2,4514 (R2=0,78) olarak belirlenmiştir. Gözlenmiş yumurtalardan alınan örneklerde yapılan ölçümlerde yumurta çapları 229,4 - 447,3 μm arasında değişmekte olup ortalama 347,2 +14,7 μm olarak tespit edilmiştir.

Liocarcinus navigator (Herbst, 1794) yengecine ait boy ağırlık ilişkisi ve üreme özellikleri

In this study, carapace length/width and length/weight relationships and reproduction characteristics of the crab species, Liocarcinus navigator, in the Middle Black Sea Region were determined. 637 individuals were sampled during the study whereas, 48 crabs were male and 589 crabs were female. While the carapace length of individuals varies between 1.7 and 2.22 cm, mean carapace length was determined as 1.73cm + 0.17 for both sexes. In addition, minimum, maximum and mean weights of sampled individuals were calculated as 1.08, 6.23 and 2.91g ± 0.81, respectively. Relationships between carapace length (L) / width (CW) and weight were demonstrated as W=0.7157 L2.526 (R2=0.79) and W=0.4433 CW2.4514 (R2=0.78). Minimum, maximum and mean egg sizes of from sampled individuals were determined as 229.4 μm, 447.3 μm and 347.2 μm + 14.7, respectively.

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