The allocation of some pelagic larvae of bivalve mollusks in the western part of chukchi sea and the influence of abiotic factors on It

For definition of spatial distribution of pelagic larvae of the bivalve mollusk in the Russian zone of Chukchi Sea in September-October 2016 in the 48th cruise of SRS "Academician Oparin" with the assistance of Norpac net with the cell of 150 μm at 30 stations in the horizon 15-0 m are took of planktonic samples. At once after catching samples were preserve in 4% solution of buffering formaldehyde, and in 2018, before the tests contents research they were washed out and fixed in 90% - m ethanol. The biggest quantity of pelagic larvae of the bivalve mollusk was found in the period from the 22nd of September until the 1st of October. The most yield area was situated on the opposite side of the Bering Strait (sum: 12,400 ind./m3) and on Bank Gerald (sum: 4,987 ind./m3). the most valuable factors influencing on the spatial allocation of the researched larvae are the water surface temperature and the water depth. The high abundance of larvae of the large bivalve molluscs allows to assume their successful cultivation in cold waters of Chukchi Sea