Seasonal Variation of Zebra Mussel (Dreissena polymorpha Pallas, 1771) Colonization on Turkish Narrow-Clawed Crayfish (Astacus leptodactylus Eschscholtz, 1823) in Lake Eğirdir, Turkey

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Fluctuation of gonadosomatic index during oocyte development in the narrow-clawed crayfish Astacus leptodactylus (Eschscholtz, 1823) in Aras Dam Lake, Iran

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Fluctuation of gonadosomatic index during oocyte development in the narrow-clawed crayfish Astacus leptodactylus (Eschscholtz, 1823) in Aras Dam Lake, Iran

This study was carried out with the aim of examining the seasonal reproductive cycle of the female crayfish Astacus leptodactylus from Aras Dam Lake, Western-Azerbaijan, Iran. Gonadosomatic index (GSI), and oocyte size were measured in females sampled seasonally in June, August, November(2011), January(2012). Development of the oocytes was categorized according to the diameter and the presenc...

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ژورنال

عنوان ژورنال: Aquatic Sciences and Engineering

سال: 2019

ISSN: 2602-473X

DOI: 10.26650/ase495721