Population structure of the invasive Atlantic blue crab, Callinectes sapidus on the Eastern Adriatic coast (Croatia, Montenegro)

The Atlantic blue crab, Callinectes sapidus, is a highly invasive species that poses significant threat to Mediterranean ecosystems. In the last two decades, it has become established in several marine and estuarine areas of eastern Adriatic Sea, resulting decline commercial catches damage fishing gear. This article reviews current status crab invasion Montenegro Croatia analyses its abundance population structure. Overall 619 crabs were sampled (male:female ratio, 1:1.91). Both carapace width weight differed significantly between males females, with having wider more weight. There was difference among sites. For total population, mean male female 130.3 ± 30.8 108.8 41.4 mm, respectively. addition, 187.2 85.6 132.5 39.1 g, Coefficient b at all locations, although varied females. work will also document impacts on local ecosystems provide comprehensive overview populations structures shed light this important aspect ecology.