The thick-shelled river mussel (Unio crassus) is listed as 'Endangered' on the IUCN Red List of Threatened Species and it important to culture them for conservation natural stocks. Integrating mussels into freshwater aquaculture system could be an efficient method, because their filtering ability. In this study, was aimed determine bacteria filtering ability if water quality got better in ter...

Analysis of zoogeographic, paleogeographic, and molecular data has shown that the ancestors many fresh- brackish-water cold-tolerant hydrobionts Mediterranean region Danube River basin likely originated in East Asia or Central Asia. The fish genera Gasterosteus, Hucho, Oxynoemacheilus, Salmo, Schizothorax are examples these groups among vertebrates, Magnibursatus (Trematoda), Margaritifera, Pot...

Though Ukraine is one of the countries with insufficient water supply, northern region central Polissia has a dense river network. The region’s major rivers – Teteriv, Sluch, Ubort, and Uzh have undergone significant anthropogenic change. Water pollution adversely affected their fauna, including Unionidae (Mollusca: Bivalvia). This study monitored these changes, was conducted in two stages. A t...

Predatory, non-native fauna can influence biodiversity and trophic dynamics in invaded ecosystems. Signal crayfish (Pacifastacus leniusculus) are a highly successful invader, which have altered freshwater benthic communities, including bivalve populations. Bivalves keystone group global decline, partly due to invasion by alien species. However, little is known about the predatory impacts of inv...