Mysteries Of Sharks
Rivaling the great white shark in size, the Greenland shark is the biggest fish in the Arctic and the most mysterious. We don’t know its population size or how often it mates, or their age and how they hunt.
Dr. Aaron Fisk and his team of researchers at the University of Windsor want to understand how the Greenland shark fits into the Arctic ecosystem and how climate change will affect it. One of the ways they’re doing this is by collecting muscle tissue samples from Greenland sharks and their potential prey. Sorting the fatty acids in the sample gives them clues on what they eat, such as halibut.