РАЗМЕРНО-ВОЗРАСТНОЙ СОСТАВ ОСНОВНЫХ ПРОМЫСЛОВЫХ ВИДОВ РЫБ АЙДАР-АРНАСАЙСКОЙ СИСТЕМЫ ОЗЕР УЗБЕКИСТАНА

The ichthyofauna of the Aydar-Arnasai lake system is presented, which consists of 18 fish species belonging to 7 families. Of these, 13 species are commercial species (Cyprinus carpio, Rutilus aralensis, Carassius gibelio, Alburnus chalcoides aralensis, Scardinius erythrophthalmus, Abramis brama orientalis, Aspius aspius iblioides, Pelecus cultratus, Hypophthalmichthys molitrix, Sander lucioperca, Channa argus, Silurus glanis, Esox lucius). The occurrence in catches of such species as Alburnus chalcoides aralensis, Hypophthalmichthys molitrix, Aspius aspius iblioides, Pelecus cultratus has decreased. Of the commercial fish, 4 species (Rutilus aralensis, Cyprinus carpio, Sander lucioperca, Carassius gibelio) make up the main fishery of the lake system. Also, data are provided on the size-age composition and growth rate of the main commercial fish species - Cyprinus carpio, Sander lucioperca, Carassius gibelio and Rutilus aralensis of the Aydar-Arnasai lake system.

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