Evaluation of reproductive parameters of males in wild freshwater crayfish (Astacus leptodactylus)
2019
AKSU, Önder
The mature crayfish (A. leptodactylus) were caughted with pinter from Keban Dam Lake Koçkale hunting area at the breeding season. Thecrayfish were stored for 20 minutes at 20°C and anesthetized. Carapace lengths were measured by caliper and their weights were weighed. Thenthe crayfish were dissected and the carapace removed. Macroscopic observations were realized in the reproductive system. All reproductivesystem, testes and the vasa deferans were weighed. The testicular index (TI) and gonado-somatic index (GSI) were calculated. The means ofTI and GSI was 0.27±0.17 and 1.66±0.99, respectively. Consequently, the present study would be useful for reproductive management andefficiency.
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