Evidence from latest right whale necropsy points to collision with ship
Scientists examining 2 of 7 North Atlantic right whales found dead in Gulf of St. Lawrence
Preliminary results from necropsies performed on two North Atlantic right whales on the Magdalen Islands this week suggest one of them was involved in a collision with a ship.
The other whale was too decomposed and determining a cause of death was not possible.
The carcasses of seven right whales have been found in the Gulf of St. Lawrence since June 6.
- 7th right whale found dead in Gulf of St. Lawrence
- Dead right whales show evidence of collision with vessels, wildlife pathologist says
Necropsies performed on two of the other dead whales at the start of July also found evidence of collisions with ships.
Another carcass showed evidence of a "chronic entanglement."
Toxic algae not ruled out
Josiane Cabana of Quebec's marine mammal rescue network told CBC's French-language service, Radio-Canada, that scientists have not ruled out toxic algae as a contributing factor in the deaths.
The final results of the two new necropsies conducted July 9 and 10 will be known in six to eight weeks.
Sightings on the rise
Cabana said an increased presence of right whales in the Gulf of St. Lawrence has been noted.
"Something is really happening in terms of the distribution of the whales," she said.
Two right whales were also seen near Tadoussac, Que.
According to Cabana, an observation station on the Mingan Archipelago regularly sees right whales in a nearby shipping lane.
"It is a whale that swims very slowly that remains for a long time on the surface and is then very difficult to spot. Their basic behaviour makes them more susceptible to collisions," Cabana said.
DFO introduces safety measures
The federal Department of Fisheries and Oceans is calling on vessels to reduce their speed between the Magdalen Islands and the Gaspé Peninsula until Sept. 30.
The DFO, however, is pausing efforts to assist whales found entangled in fishing line in order to conduct a safety review of its procedures.
The pause comes after a New Brunswick man died earlier this week while helping set a whale free from fishing lines.