Вестник МГТУ, 2022, Т. 25, № 2.

Vestnik of MSTU. 2022. Vol. 25, N 2 DOI : https://doi.org/10.21443/1560-9278-2022-25-2 / Biological Sciences / Earth Sciences C O N T E N T S Biological Sciences Hydrobiology Dikaeva D. R. Polychaeta fauna in the northeastern Barents Sea..................................................................... 79 Invertebrate Research Antosyuk O. N., Unzhakova D. V., Marvin N. A. The changes in the viability parameters of hybrid individuals heterozygous for vestigial Drosophila melanogaster during long-term directional breeding....................................................................................................................................................... 91 Ichthyology Dolotov S. I., Kuzmin D. O. Changes in the smoltification age of Atlantic salmon (Salmo salar L.) of the Yokanga, Kharlovka and Vostochnaya Litsa Rivers (the Murmansk Region).............................. 101 Marine Zoology Mishin Т. V. Bycatch of marine mammals in the Northwest Atlantic during commercial fishery (based on literature materials and observations by the Polar branch of VNIRO in 2013-2020).................... 110 Ecology Gerasimova T. N., Sadchikov A. P. The role of rotifer in water quality improvement in a fishpond 120 Potapov S. S., Parshina N. V., Myazin V. A., Evdokimova G. A., Makarov D. V., Goryachev A. A. The mineral composition of sediments and the reasons for their formation in the heating and hot water supply systems of the towns of Apatity and Kirovsk (the Murmansk Region)......................... 125 Earth Sciences Cherniakov S. M. Model evaluation of accuracy of obtaining total electron content by the method of spaced reception of low Earth orbit satellite signals............................................................................... 133