Schizothorax


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Schizothorax

 

a genus of fishes of the family Cyprinidae. The body is curved and covered with small scales; the anal fin and the anal opening have a series of larger scales. The pharyngeal teeth are triserial, and there are two pairs of barbels. The underside is black. The body is up to 1 m long and weighs up to 12 kg. The fishes are found in rivers and lakes in Central Asia, Middle Asia, and Kazakhstan. Spawning occurs in the spring in rivers; the sticky eggs are deposited on the bottom. Some species of Schizothorax, such as the Hi marinka (Schizothorax pseudaksaiensis) and S. esocinus, feed on other fish; others, such as the common marinka (S. intermedius), feed on invertebrates. Some species, including the Balkhash marinka (S. argentatus), feed on plants. The fishes, which are of some commercial importance, are caught primarily in Lakes Balkhash and Issyk-Kul’. The black film on the roe and on the raw underside of all species is poisonous.

References in periodicals archive ?
Fish diversity of the Mechuka valley was found to be low; the only fish species collected along with the new species were Schizothorax richardsonii (Gray) and the introduced On-corhynchus mykiss (Walbaum).
Table 2: Experimental fish and their biometric features (Common carp, Grass carp, Silver carp, Bighead and Schizothorax pelzami).
We introduced these fishes here because our local fishes, the Schizothorax, their growth is very less.
The genus Schizothorax Heckel comprises many species that inhabit the reservoirs of Central Asia from Turkamenistan and Eastern Persia in the West to the far reaches of the Mekong and Yangtzekiang in the East.
Relatively small and high numbers of chromosomes were observed in Schizothorax esocinus.
The cytological analysis of Schizothorax esocinus in the present study revealed a high number of chromosomes: 2n = 98.
It is interesting that the Kashmir Valley Schizothorax esocinus showed a diploid number similar to that recorded for other species inhabiting different geographical locations eg.
The present study is the first to describe the chromosomal characteristics of Schizothorax esocinus from the Kashmir Valley.
Karyotypes of two species of snow-trout, Schizothorax richardsonii (Gray) and S.