Questions from the public
A selection of answers to your questions.
2018 / 10 / 24
Are there krill in the wintertime?
Yes, there are krill in the St. Lawrence in the wintertime. According to a recent study by Dr. Yvan Simard and Nathalie Roy from Fisheries and Oceans Canada, the abundance of krill, in fact, was the h...
2018 / 10 / 16
How do whales go on long dives?
Whales are marine mammals that dive for various reasons, such as: feeding and mating. Their prey are found at varying depths under the water and depending on where in the water column that is, whales ...
2018 / 10 / 15
What Do Whales Do at Night?
A curtain closes, night takes over the sky and during its quiet advance the frantic pace of the cities tapers off. But what happens in the St. Lawrence when darkness arrives? What do whales do during ...
2018 / 09 / 27
What do we know about harbour porpoises?
Harbour porpoises are the subject of very few studies in the St. Lawrence and are therefore much less known than some other whales. So, let’s give them the credit they deserve with what makes th...
2018 / 09 / 25
Do hybrids exist in cetaceans?
This year once again, the research team aboard the BpJAM saw the narwhal! He seems to have made his home in the St. Lawrence for the past three years. As the beluga’s closest kin, the narwhal is...
2018 / 09 / 04
Whaling: Do whales hunted in the Nordic countries visit the St. Lawrence?
Are the cetaceans targeted by Icelandic or Norwegian whalers the same ones as those that visit us year after year? (Part 3 of 3 of the “Whaling” Series) The fin whales that visit the St. Lawre...
2018 / 08 / 21
What Good is Whale Poo?
In summer, whales find themselves in the St. Lawrence to stock up on food. Krill and fish are on the cetaceans’ menu. Of course, once it’s all digested, they evacuate what they no longer need! Wha...
2018 / 07 / 06
Since Whales and Ungulates Share a Common Ancestor, Are the Former Able to Ruminate?
Whales are carnivores that feed on small shrimp-like crustaceans. Yet their digestive systems do not resemble those of carnivorous mammals. Surprisingly, their stomachs are most similar to those of co...
2018 / 07 / 03
Can Whales Be Deaf or Blind?
Sound travels much faster through water than through air. Whales have taken advantage of this phenomenon thanks to their highly developed hearing. This sense is critical for communication, feeding, sp...
2018 / 05 / 15
Would it be possible to fit more whales with location transmitters in order to prevent collisions?
If ships knew exactly where the whales were, could we reduce the number of collisions? A number of you have asked us this question. In light of the current state of technology, we would have to say th...