Green Crab

Abundance , Distribution, and Mitigation of Green Crab

The European green crab (Carcinus maenas) has successfully invaded estauries and protected harbours from Port aux Basques to Port au Choix, along the west coast of Newfoundland (NL). Qalipu Mi’kmaq First Nations (Qalipu) and Mi’kmaq Alsumk Mowimsikik Koqoey Association (MAMKA) have been studying and mitigating green crab in Bay St. George and Bay of Islands since 2009. We conducted rapid assessments and focused removal along a ~270 km latitudinal range from late July to early October to determine the abundance and distribution of green crab in western NL. We successfully removed 8050 green crab from all sites, with 3867 crab removed from Penguin Arm, Bay of Islands, over three nights. This year was the first step towards meaningful reductions of green crab in western NL and has set the framework for upcoming studies investigating the effects of green crab on eelgrass communities. The protection of this significant habitat is essential for maintaining healthy coastal ecosystems and conserving commercially, culturally, and recreationally important species.

Click here to read more about the Green Crab Report