Terkos Gölü kerevitleri (Astacus leptodactylus Eschscholtz, 1823)' nin bazı morfolojik özellikleri

Bu çalışmada Terkos Gölü’nde yaşayan kerevitleri (Astacus leptodactylus ESCH 1823) ‘nin bazı morfometrik karakterleri ile boy-ağırlık ilişkisini belirlemek amaçlanmıştır. Araştırma Ağustos 2000- Temmuz 2001 tarihleri arasında gerçekleştirilmiştir. Aynı zamanda eşey grupları arasındaki farklılıklar da araştırılmıştır. Populasyonun; ortalama total boyu 121.33 mm, ortalama total ağırlığı 52.25 g, ortalama sefalothoraks boyu 59.61 mm, ortalama abdomen boyu 62.43 mm, ortalama sefalothoraks eni 31.51 mm, ortalama abdomen eni 28.7 mm, ortalama kelipet boyu 52.85 mm ve ortalama kelipet eni 16.53 mm olarak bulunmuştur. Boy ağırlık ilişkisi denklemi dişiler için y=2.893x–4.321 erkekler için y=2.893x–3.442 olarak saptanmıştır.

Some morfometric characteristics of crayfish (Astacus leptodactylus Eschscholtz, 1823) in Lake Terkos

Some morfometric characteristics of crayfish (Astacus leptodactylus Eschscholtz, 1823) in Lake Terkos. This study was carried out to determine some morphological characteristics and the relationships between length-weight of the freshwater crayfish, (Astacus leptodactylus Eschscholtz 1823) in Terkos lake. The study was performed between August 2000 and July 2001.Differences of sex groups were also investigated. Results of the research can be summarized as follows; average total length 121.33 mm, average total weight 52.25, average cephalothorax length 59.61 mm, average abdomen length 31.51 mm, average abdomen width 28.7 mm, average cheliped lenght 52.85 mm, average cheliped width 16.53 mm. Length-weight relation equation was found for females y=2.893x-4.321 for males y=2.428x-3.442.

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