Case Study: Green Crab

The green crab was first discovered in Newfoundland and Labrador in 2007. Researchers believe it was likely transported by marine vessels. There are different types of green crab. The type found in Newfoundland and Labrador is particularly aggressive. It can tolerate colder water, but rising temperatures have allowed it to invade new areas. This is a problem because the green crab eats native animals (such as shellfish) and when digging it destroys eelgrass, which is an important habitat for small finfish.

Quick Fact Green Crab Population Growth Touch to learn more

To control the spread of green crab, it's important to check and clean fishing gear and boats.

Green Crab Population in Newfoundland and Labrador

green crab population 2006 green crab population 2013

Source: Fisheries & Oceans Canada

Photo courtesy of Fisheries and Oceans Canada