A study on some morphological characteristics of Astacus leptodactylus (Eschscholtz 1823) in seven different inland waters in Turkey

Abstract

Abstract This study aimed to determine some morphological characteristics of freshwater crayfish (Astacus leptodactylus Eschscholtz 1823) populations in various water resources in Turkey. We present the relationships between total length (TL), carapace length (CL), chelae length (ChL), abdomen length (AL) and total weight (W) for Astacus leptodactylus from three lakes, three dam lakes and an irrigation lake. The values of the exponent b of the length˗weight relationships ranged from 1.0760 to 3.6939 and intercepts from 1.0760 to 3.6939 for combined data. The r2 values ranged from 0.6599 to 0.9561 and relationships were estimated highly significant (P<0.05). Differences in slopes of regression lines between sexes as well as among locations were not significant, tested by ANCOVA.

Keywords

• Key words: Crayfish, morphometric characteristics, length˗weight relationship, allometric growth

Kaynakça

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