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V. Pavlova,  (PhD, Senior Researcher, Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences)

Series "Natural & Technical Sciences" # 03  2018
дрейссена
The bivalve mollusk Dreissena rostriformis bugensis is highly invasive species. It plays important role in benthic communities defining their structure and functioning. The mussel D. r. bugensis is represented as two ecotypes: shallow-water and deepwater. In 2009 deepwater ecotype was found in the Cheboksary Reservoir. The search in deepest sites of Volga’s reservoirs in 2016 revealed that this morph is absent here, even in the Cheboksary Reservoir. All mussels studied corresponded to the shallow-water morphotype. The possible reason of the morphological transformation of deepwater ecotype is discussed.

Keywords: quagga mussel, Dreissena rostriformis bugensis, invasive species, deepwater morph, the Cheboksary Reservoir.

 

Read the Full Article in Russian …


©  V. Pavlova, Journal "Modern science: actual problems of theory and practice".
 

 

 

 
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