July 3, 2019 — Five North Atlantic right whales have been found dead in the past week, and six in the last month. With just over 400 remaining and calving rates low, that’s a death toll the critically endangered population can’t afford.
“Panicking seems appropriate, yes,” said Peter Corkeron, who leads the large whale research program at NOAA’s Northeast Fisheries Science Center.
The whales’ death toll is similar to that of the summer of 2017, when there was one death in early June, and then, later in the month, five deaths in the span of a week, all in the Gulf of St. Lawrence. That summer went on to become catastrophic for the whales, with a total of 12 documented fatalities in Canadian waters and another six in U.S. waters.
There are notable differences, as well, though. In 2017, some whales were hit by ships, but many of the deaths were due to whales getting tangled in fishing gear. This year, ship strikes seem to be the primary problem.
Large numbers of North Atlantic right whales have been sighted in the western Gulf of St. Lawrence in recent summers. Corkeron says that may be because of a subtle shift in where the animals are spending their time. Right whales have only started showing up in the Gulf of St. Lawrence in significant numbers in the past few years, a change in their migration patterns that researchers attribute to climate change.