Cybium
(in press)
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
Abstract
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