TO THE QUESTION OF CHANGE OF SPECIFIC STRUCTURE OF MAKROFITOBENTOSA OF THE SUDZHUKSKAYA LAGOON FOR THE LAST 40 YEARS (1970–2012)
The Sudzhuksky lagoon is located at an entrance in the Tsemessky (Novorossisk) bay. It is separated from a bay at the East with pebble rerash, at the South with the plait, that has in the southwest part of pro-wounds. The vegetation of a lagoon was always presented by communities of algas (generally the sorts Enteromorpha, Cladophora, Chondria, Lophosiphonia) and the highest water plants (Potamogeton pectinatus, Chara vulgaris, Lamprothamnus papilosum, etc.). At the heart of this article – geobotanical descriptions of a macrophytobenthos of the Sudzhuksky lagoon which were made in 2012, and also the previous period of researches (1970–2010). The analysis and synthesis of the saved-up data showed that for the last 40 years the hydrochemical mode in the Sudzhuksky lagoon was extremely unstable. Dynamics of a macrophytobenthos of a lagoon was caused by change of an ecological condition of waters under the influence of the anthropogenous processes accruing on scale. As a result of it, a part of flora of a lagoon there was a decrease in number of types of the highest water plants and choral algas, also because of disappearance of Ruppia spiralis, Chara vulgaris, Lophosiphonia reptabunda, against mass distribution Potamogeton pectinatus. The specific structure of seaweed communities, on the contrary, increased at the expense of group of green and red types, including emergence of new types. Change of saprobiological structure of flora found reflection in disappearance of oligosaprobny types at simultaneous growth of number of types polysaprobiolog.