INTERANNUAL CHANGEABILITY OF MACROZOOBENTHOS IN THE NORTHERN PART OF THE SUKHOI LIMAN
Journal Title: Вісник Одеського національного університету. Біологія - Year 2014, Vol 19, Issue 2
Abstract
The variation of parameters of macrozoobenthos in northern part of Sukhoi Liman in the summer of 2003-2006 was shown. Fauna of macrozoobenthos has a maritime character. It was registered 44 species; interannual fluctuations amounted at 19-28 species. In macrozoobenthos species composition Polychaeta (to 35.7% of the total number of species), Bivalvia (up 26.3%) and Amphipoda (up 30.4%) dominated. The representatives of Gastropoda (up to 74.5%) dominated in abundance; representatives of Bivalvia (up to 53.1%) – in biomass. In 2003, the following species dominated: in abundance – Cerastoderma glaucum, biomass – Abra ovata. Berger-Parker Index made 0.59 and 0.38 respectively. In subsequent years Hydrobia acuta played the main role in the total abundance (Berger-Parker index ranged from 0.59 to 0.69); in biomass – A. ovata (2004), Mytilus galloprovincialis (2005), C. glaucum (2006). Hediste diversicolor reached the most quantitative development among worms, Microdeutopus gryllotalpa and Idotea baltica basteri – among crustaceans. Trophic groups – detritophagous (up to 87.5% in abundance) and sestonophagous (up to 82.2% in biomass) dominated. Detritophagous (up to 47.8%) and euryphages (up to 34.6 %) dominated in the number of species. The stability of macrozoobenthos community in the northern part of Sukhoi Liman during 2004-2006 was perturbed that was proved by the ABC-method, as well as Simpson, Margalef, Pielou indices.
Authors and Affiliations
A. Yu. Varigin, A. A. Rybalko
Keywords
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