Taxonomic and ecological diversity of the sea biota of the Tauysk Bay of the Sea of Okhotsk

Complex characteristic of the taxonomic and ecological diversity of the sea and the saltish water invertebrates, of the sea and freshwater fishes, and besides of the different helminths groups, inhabited the Tauysk Bay of the Sea of Okhotsk, is given. Important biocenologycal role of the background species of the biohelminths, integrating in their parasitic systems as these or those components of the population of the various sea, freshwater and land organisms of the invertebrates, fishes, birds and mammals, acting as intermediate, paratenic and definitive hosts, is discovered for the region for the first time. It is pointed, that increase of economical activity in the Tauysk Basin can lead to the destruction of the natural biocenoses, ecosystems and historically formed biocoenotic (in the first place - trophic) connections, that will enavitably entail significant distortion of the physiognomic appearance of the sea biota and the decrease of it's production. That is why the strategic task of the resource management and the preservation of the biological diversity of the Tauysk ecoregion is the prevention of the transition of the separate species, organism communities and ecosystems to the critical or irreversible state.