Topical groups of mollusks in the lakes of Bol’shoy Solovetskiy Island (Solovetskiy Archipelago, White Sea, Northwestern Russian) |
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| Authors: | Yu V Bespalaya I N Bolotov N A Zubry |
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| Institution: | (1) Section of Cartilage Regeneration, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku Tokyo, 113-8519, Japan;(2) Section of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku Tokyo, 113-8519, Japan;(3) Hyperbaric Medical Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku Tokyo, 113-8519, Japan;(4) Global Center of Excellence Program, International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku Tokyo, 113-8519, Japan |
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| Abstract: | Topical groups of mollusks were studied in 13 lakes of Bol’shoy Solovetsky Island. A total of 20 species and 14 genera of
mollusks were found. Five classes of mollusk topical groups may be defined with a higher probability. These groups include
12 to 19 species. All these species inhabit the littoral zone at depths of up to 3.2 m. No mollusks were found within the
lakes’ deepwater zone (maximal depths of 10–30 m and silty grounds). A specific set of one to three dominant species is a
characteristic of each class of topical groups. This may be treated as an effect of compensating for island communities: low
species diversity is compensated for by increasing the density of colonies of some species. Ten mollusk species are significantly
confined to a specific type of habitat. |
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