immigration

Watch out for the crayfish?

At the beginning of the year, I was intrigued by a headline: Invasion of a crayfish species worries biologists. What are they worried about? Freshwater crayfish are small, not dangerous and they are good to eat. I have known since my early years that crayfish can be used as bait. I also knew that they … Lire plus

Immigration and the St. Lawrence.

Human beings around the world must deal with immigration and the St. Lawrence wildlife is no different. There are more than a hundred species of fish and close to 2000 marine invertebrates that live in the river. To make things worse, there are no borders on the St. Lawrence. On a regular basis, we learn … Lire plus