Ecological condition of zoobenthos on the Caucasus coast near Dzhubga – Khosta (the Black Sea)

Zh.P. Selifonova1,2, V.K. Chasovnikov3

1Admiral Ushakov State Maritime University, Russian Federation, Novorossiysk, Lenin Av., 93

2Kovalevsky Institute of Marine Biological Research, Russian Federation, Sevastopol, Nakhimov Av., 2

E-mail: Selifa@mail.ru

3Shirshov Institute of Oceanology, Russian Federation, Moscow, Nakhimovsky Av., 36

E-mail: chasovn@mail.ru

DOI: 10.33075/2220-5861-2017-4-119-128

UDC 574+ 591.9+550.4

Abstract:

   Three bottom biocenoses of Chamelea gallina – Pitar rudis, Modiolula phaseolina (Bivalvia) and Terebellides stroemi (Polychaeta), which were characteristic of this area in the late 1980th, and one biocenoses of recent invader of Anadara kagoshimensis (Bivalvia) have been revealed. The increase of biomass and frequency of occurrence of rare species in the late 1990th, such as Gouldia minima, Lucinella divaricata (Bivalvia) is noted. The structure of communities C. gallina – P. rudis and Modiolula phaseolina hasn’t changed considerably. Insignificant excess of permissible concentration of oil products and cuprum in bottom sediments of areas of the cities of Tuapse and Sochi has been registered. The condition of benthic communities is estimated as quite favorable.

Keywords: zoobenthos, biocenosis, geohemistry of bottom sediments, Dzhubga – Khosta, the Black Sea.

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