DEPENDENCE OF THE PHENOTYPES OF THE MYTILUS GALLOPROVINCIALIS (LAMARCK, 1819) ON THE DEPTH OF GROUND IN THE ODESA BAY OF THE BLACK SEA
Journal Title: Вісник Одеського національного університету. Біологія - Year 2018, Vol 23, Issue 2
Abstract
Introduction. The Black Sea mussel Mytilus galloprovincialis (Lamarck, 1819) is one of the dominant species of macrozoobenthos and fouling of the Black Sea. It occurs on rocks and stones, on shell, sand and muddy ground, in fouling of metal and concrete hydraulic structures. The species is represented by three phenotypes which have their own specific biological and ecological characteristics. The aim of the work is to analyze the distribution of various phenotypes of the Black Sea mussel over the depths and soils in the area of the Odesa Bay. Methods. The material was mussels, collected in October 2013 p. in the north-western region of the Odesa Bay near the Big Fountain Cape. In two transects 739 specimens of mollusks (12 samples). were collected and processed according to standard methods. Research results and conclusions. Mussel phenotypes Fa, Fb, Fc have been identified in the Odesa Bay. On the shell-sandy soil, mussels were predominant in the mussel phenotype – the average of 1397 ind./m2, in mussel phenotype mussels Fа – 1644,0 g/m2. On the stony ground, the mammalian phenotype Fс – 3400 ind./m2 and 1550.9 g/m2 on average were characterized by a larger number and biomass. The proportion of mussels of the phenotype Fа in the total number varied from 4.8 % (depth – 1 m) to 53.9 % (6 m); in biomass – from 4.7 % (1 m) to 5.8 % (6 m); the share of Fb in the total number was 21.1 % (6 m) – 52.2 % (3 m); in biomass 22.0 % (6 m) – 58.0 % (3 m); the share of Fс varied from 25.0% (6 m) to 52.4 % (1 m); in biomass – from 25.5 % (6 m) to 53.6 % (1 m).
Authors and Affiliations
E. A. Naum
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