6 Critically Endangered North Atlantic Whales Found Dead in Canada's Coastline
This month's North Atlantic right whale deaths, as well as seven recent calf births, brings the total population of the endangered species to an estimate 412.
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Ottawa: Six critically endangered North Atlantic right whales have been found dead in the Gulf of Saint Lawrence this month, Canadian officials said on Thursday.
As a result, Transport Canada has expanded a shipping speed limit of 10 knots in the Gulf and closed 16,000 square kilometers (6,200 square miles) to commercial fishing.
The animal carcasses were spotted drifting in the channel and tagged with satellite tracking devices, and on Thursday afternoon Fisheries and Oceans Canada said a plane had spotted another carcass adrift off a peninsula not far from the gulf.
Two of the bodies were towed to nearby beaches where necropsies were performed. A 40-year-old female, which was known to marine biologists and had been named Punctuation, was found to have likely died in a collision with a ship.
Official said they weren't able to establish a cause of death for the second whale, a nine-year-old male named Wolverine. More autopsies are planned or being considered for the remaining whales.
This month's right whale deaths, as well as seven recent calf births, brings the total population estimate to 412.
The Canadian government stepped up local tracking of right whales — using aerial and marine surveillance, as well as ocean acoustic monitoring — after more than a dozen were found dead in 2017 in the busy seaway and off the coast of New England in the United States.
No deaths were reported in 2018.
Conservation officials say that North Atlantic right whales are among the most threatened species in the world. About a third of them visit Canadian waters to feed each summer, with the number of visits increasing and the whales' range in the Gulf expanding in recent years, amid changing oceans.
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