Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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DISTRIBUTION OF FISH TO MOUTH PARTS TOBOL RIVER

Chemagin A.A. 1 Aldokhin A.S. 1
1 Tobolsk Complex Scientific Station UD RAS
The distribution of fish to the mouth of the river Tobol hydroacoustic method using a computerized program-technical complex, shows the size structure of the fish population, three-dimensional visualization of the bottom topography, showing areas of greatest density aggregations of fish in the study area. Perform safety fishing, marked species belonging to the families Cyprinidae, Percidae, Esosidae, Coregonidae, Lotidae, Acipenseridae. The study found that from the land of rivers due to erosion, resulting in blurred shore, the deposition of soil particles and form shoal. Formed at shoals coastal areas and rivers has the highest concentration of fish, with a basis of these clusters are young fish, mainly family Cyprinidae. Congestion young fish in marked special water areas due to hydrological conditions, form a confluence of a major river to the other