The populations of the freshwater pearl mussel, Margaritifera margaritifera (Linnaeus, 1758), and the thick shelled river mussel, Unio crassus Philipsson, 1788, in Latvia


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Abstract

The populations of two endangered species—the freshwater pearl mussel Margaritifera margaritifera and the thick shelled river mussel Unio crassus in Latvia were studied. The specimens were counted, measured, population density and age structure were calculated. The possible host fish presence was found.

About the authors

M. Rudzīte

Museum of Zoology

Author for correspondence.
Email: mudite.rudzite@lu.lv
Latvia, Kronvalda Bulv. 4, Rīga, LV-1586

M. Rudzītis

Museum of Geology

Email: mudite.rudzite@lu.lv
Latvia, Alberta 10, Rīga, LV-1010

J. Birzaks

Institute of Food Safety

Email: mudite.rudzite@lu.lv
Latvia, Lejupes Street-3, Riga, LV-1076


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