My comments will be restricted to whales, as I'm a whale biologist, not a fisheries biologist.
What we have noticed since 2010 is a change in the habitat of North Atlantic right whales. Right whales typically came up into the Bay of Fundy and could be found there between June and December, but primarily in August, September and October each year. Those studies were begun by colleagues at the New England Aquarium in 1980. We saw a pretty persistent distribution of those whales seasonally and in numbers for about 30 years. Then 2010 came along and we started to see fewer right whales and greater variability in numbers each year. Then 2016 was more of a normal year, but since then, we've literally had just a handful of right whales seen in the Bay of Fundy, five to six a year.
These animals can be individually identified. They are photographed elsewhere. We know they're still alive. They're seen in their southern habitats and along the U.S. coast. Some are also seen in the Gulf of St. Lawrence.
The areas off Roseway Basin are not surveyed as often as they used to be by grant funders like you to actually find right whales when you go out for surveys, but the Canadian government does continue to do aerial surveys out there, and there are some acoustic listening devices.
At this point, with an estimated population of about 360 right whales—that's the whole species—about 140 of them are returning to the Gulf of St. Lawrence each summer. As for the remaining ones, their location in the summertime is actually not known.