07/20/2017 11:10 EDT | Updated 07/20/2017 13:10 EDT

Another North Atlantic Right Whale Corpse Discovered In Gulf Of St. Lawrence

This is the eighth whale found dead in the gulf.

Boston Globe via Getty Images
A right whale erupting from the blow hole while feeding off the shores of Duxbury Beach.

HALIFAX — Another endangered North Atlantic right whale has been found floating lifeless in the Gulf of St. Lawrence, an animal rescue group said Thursday as plans were being made to tow the animal ashore.

The Marine Animal Response Society said an aerial survey conducted by the National Oceanic and Atmospheric Administration in the U.S. spotted the whale carcass late Wednesday afternoon east of Shippagan, N.B. The group said the survey also revealed another entangled right whale in the Gulf of St. Lawrence.

The society's response co-ordinator Andrew Reid said they are working with the federal Fisheries Department and the Canadian Wildlife Health Co-operative to conduct a necropsy of the whale to determine what killed it.

"We have to find a suitable necropsy location to tow the animal to," Reid said in Halifax. "We're co-ordinating with our colleagues at the Canadian Wildlife Health Co-operative... to bring the necessary resources on site to do the necropsy."

Reid called the whale deaths "unprecedented."

"Where we're dealing with such an endangered species, it's very concerning. For any species it would be concerning to have this many animals die in such a short period," he said.

"For a species like the North Atlantic right whale, where there are so few animals left, it's a heightened concern."

For a species like the North Atlantic right whale, where there are so few animals left, it's a heightened concern.Andrew Reid

North Atlantic right whales are critically endangered, with only about 525 estimated alive.

Last week, the wildlife co-operative said a necropsy performed in the Magdalen Islands on one of the eight right whales found floating in the Gulf of St. Lawrence showed it had marks of blunt trauma, suggesting it may have collided with a vessel.

Tests performed earlier on two other North Atlantic right whales in Prince Edward Island also showed signs of blunt trauma. Another died as a result of what the group called a chronic entanglement in fishing line.

Disentanglements of right whales were recently put on hold by Ottawa following the death of a whale rescuer in New Brunswick. Joe Howlett, who was also a lobster fishermen, died after freeing a North Atlantic right whale that had been entangled in fishing gear near Shippagan, N.B.

Boston Globe via Getty Images

The United States had implemented similar protocols, but announced earlier this week that it was allowing its whale-disentanglement teams to resume most rescue operations, except for the disentangling of right whales.

Chris Oliver, assistant administrator with the National Oceanic and Atmospheric Administration, cited right whales' unpredictable behaviour as a challenge during rescue attempts.

Jerry Conway of the Canadian Whale Institute in Campobello, N.B., agreed.

"The North Atlantic right whale has a violent reaction when certainly the weight that has been restricting it is released, and it's an escape mechanism," Conway said Thursday. "Some of the other whales are far more docile and just swim away. The North Atlantic right whale reacts violently and this is why they have to be treated entirely differently."

Conway said the Fisheries Department has sent an aircraft to locate the entangled whale so it can be tagged with a tracking device to monitor its movements. He said officials will then consult with experts on the safest course of action.

The Gulf is a relatively new environment for right whales, said Conway, whose primary feeding grounds have traditionally been in the Bay of Fundy and Roseway Basin.

With initial findings suggesting that human activity may have played a role in the string of right whale deaths, Conway said that fishermen in the Gulf will have to be a part of any effort to save the lumbering giants.

"The fishing industry itself is the answer and will possibly help solve this problem," said Conway. "Fishermen are very innovative. They can develop strategies, with the right information and given the time and resources, that could mitigate this a great deal."

Conway said if the current rate of right whale deaths persists over the next few years, the demise of the endangered animals will become "inevitable."

With files from Aly Thomson in Halifax.

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