An Investigation on the Reproduction of the Common Carp ( Cyprinus carpio (Linnaeus, 1758)) from Çildir Lake-Turkey

摘要: An investigation was made on the gonadosomatic index (GSI) and egg diameter of specimens Common Carp ( Cyprinus carpio) caugth from Cildir Lake in period 1991-93. The most intensive for reproduction recorded June-August, when water temperatures were 12.9, 19.6°C respectively.