title: The Chesapeake blue crab, Callinectes sapidus Rathbun, 1896: new finding, origin, and further spread in the Ukrainian part of the Black Sea
abstract: Biological invasions pose a significant threat to aquatic ecosystems, and the spread of uncontrolled non-indigenous species can have detrimental effects on biodiversity, ecosystem processes, and economic activities. The Chesapeake blue crab, Callinectes sapidus , native to the western Atlantic Ocean, is non-indigenous in the Black Sea region. This study presents novel findings on its presence and breeding in the Black Sea, particularly in North-Western part within the territorial confines of Ukr
journal: Aquatic Invasions