Monday, October 23, 2023

Gangster European green crabs invade Haida Gwaii

The European green crab is aggressive and feeds voraciously on shellfish. They have no natural predators and reproduce at high rates. Each female can have up to 185,000 offspring at a time. Prime concern is the impact on eelgrass, a critical habitat for young salmon. The invader was introduced in California 3 decades ago and is steadily moving north. In the past 3 years they have appeared in Haida Gwaii and their numbers are huge and growing.
Conservation groups trap crabs by the tens of thousands and freeze them to kill them. They are crushed and used for compost.