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Kalous, L., D. Memiş & J. Bohlen

Finding of triploid Carassius gibelio (Bloch, 1780) (Cypriniformes, Cyprinidae) in Turkey

Cybium 28: 77-79



Finding of triploid Carassius gibelio (Bloch, 1780)(Cypriniformes, Cyprinidae), in Turkey


Kalous, L. 1, 2, D. Memiş 3 & J. Bohlen 2


1 Department of Zoology and Fisheries, Czech University of Agriculture, 165 21 Prague 6- Suchdol, Czech Republic

2 Institute of Animal Physiology and Genetics, Academy of Science of the Czech Republic, 277 21 Libĕchov, Czech Republic

3 Fisheries Faculty, Istanbul University, 344 70 Laleli, Istanbul, Turkey


Two females of Carassius gibelio were collected 5.3.2002 on the central fish market in Istanbul. These specimens originated from the Kayalıköy dam near the city of Kırklareli in Turkish Thrace. The ploidy level of the fish was estimated by computer-assisted image analyses of erythrocyte nuclear size . The mean nuclear area of 100 measured cells was 19,85 μ2± 2,00 and 18,27 μ2 ± 1,64 respectively, therefore both females were triploids. Since C. gibelio is known to be a hazardous fish species for native fish communities, the spread of this species should be dammed.


Key words: Giebel, introduction, pest species, aquaculture