A. R. Kosyan
A.N. Severtsov Institute of Problems of Ecology and Evolution of RAS, Moscow, Russia
Abstract
The carbonate content in the coastal sediments of the Bakalskaya Spit, the quantitative and size-age composition of the mass species of bivalve mollusks, and the main biogenic elements content in sea water are presented. The proportion of carbonates in the ground increases from the western root of the spit to the east, which is most likely due to the prevailing current direction and the peculiarities of spit evolution in former years, but not to the distribution of the most common species of bivalve mollusks, Chamelea gallina and Polititapes aurea. The biomass of mollusk shells tends to increase from the western and eastern roots to the spit tip, where it reaches maximum values. The direct dependence of the shell biomass on the nutrients concentration in sea water was not detected.
Keywords
bivalve mollusks, biogenic carbonates, sediments, biomass, abundance, Chamelea gallina, the Bakalskaya Spit, the Crimea, the Black Sea
DOI
10.22449/2413-5577-2018-4-81-91