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 ?
In Schizothorax prenanti, the npy expression level in fed fish was lower than in fasting fish (Wei et al., 2014).
Maximum likelihood tree with bootstrap value 100 was constructed on the basis of COI data and taking some other sequences of genus Barilius (Barilius ngawa KJ909413.1, Barilius barna JN965190.1, Barilius gatensis KX230845.1, Barilius bakeri KX230847.1, Barilius barila KY867678.1, Barlius vagra KC791629.1, Barilius bendelisis MF445035, Barilius bendelisis FJ459420 and Schizothorax richardsonii KR809777) from NCBI-GenBank just to increase the resolution among the species.
There were a total of 8 species including Oncorhynchus mykiss, Salmo truttafario, Glyptothorax kashmirensis, Triplophysa stoliczkai, Diptychs maculatus, Schizothorax plagiostomus, Triplophysa kashmirensis and Glyptosternum reticulatum recorded in study area.
Cold-water species such as Schizothorax kozlovi (He et al., 2014), Oncorhynchus mykiss (Brett, 1952), and Salvelinus fontinalis (Currie et al., 1998) have shown ARR values of 0.21, 0.18, 0.14 and 0.1-0.30, respectively.
The fishes under examination for helminth parasite infestation were the Brown Trout (Salmo trutta fario) and Khont (Schizothorax plagiostomus) which were caught live from the River Kishenganga of Gurez at different study sites.
Chen et al., "Ya-fish (Schizothorax prenanti) spexin: identification, tissue distribution and mRNA expression responses to periprandial and fasting," Fish Physiology and Biochemistry, vol.
2011: Annuli characteristics of the different aging materials for Schizothorax (Racoma) pseudaksaiensis (Herzenstein).
Epithelium of the intestinal tract of a freshwater teleost, Schizothorax curvifrons Heckel (Cyprinidae, Cypriniformes, Pisces): An ultrastructural study.
Total 557 (342 Schizothorax progestus 105 Caratus auratus 60 Tor tor and 50 Glypothorax sp.) were procured from January to December.
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).