Reproductive Features of Indigenous and the Invasive Chinese Freshwater Mussels (Mollusca, Bivalvia, Anodontinae) in Ukraine

Reproductive Features of Indigenous and the Invasive Chinese Freshwater Mussels (Mollusca,
Bivalvia, Anodontinae) in Ukraine. Yanovych, L. M. — Propagation processes of indigenous mussels
of water reservoirs and water currents of Ukraine proceed inadequately. In Anodonta anatinа (Linnaeus,
1758), 100 % of female mussels reproduced in about 60 % of collection points, in the rest of collection
points only 17–90 % of female mussels appeared to be “pregnant”, and in A. cygnea (Linnaeus, 1758) this
number was about 50 %. In almost 70 % of collection points, A. cygnea and Pseudanodonta complanata
Rossmässler, 1835 female mussels’ marsupia were not completely fi lled with reproductive products. On
the other hand, invasive Chinese mussel, Sinanodonta woodiana (Lea, 1834), had multiple ovipositions
during the whole year, its hemibranchs were completely fi lled with reproductive products.