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This week, the Canadian government announced a slew of measures to save the critically endangered species. The $61.5 million (US$50 million) initiative will address three key threats to the orcas: a lack of chinook salmon, the whales' favored prey; contaminants in the water; and vessel traffic and noise that interferes with their hunting abilities, according to a news release from the Fisheries and Oceans department.
A study published in Science Friday found that current concentrations of PCBs could lead to the disappearance of half of the world's killer whale, or orca, populations over the next 30 to 50 years, according to an Aarhus University press release published by ScienceDaily.
The ailing orca whale J50 was declared "missing and now presumed dead" by the Center for Whale Research Thursday, after a three-day search by the organization in the waters between Washington state and Canada failed to locate her.
She would be the third Southern Resident killer whale to die since June, bringing their numbers down to 74.
Tahlequah—a southern resident killer whale whose heartbreaking story has captured attention around the world—has been carrying her dead calf for more than two weeks now.
British travel giant Thomas Cook announced over the weekend it will stop offering tickets to animal attractions that keep killer whales in captivity.
Following the suspected death of an orca whale nicknamed Crewser, the population of southern resident orca whales is the lowest it has been in 34 years, The Seattle Times reported Saturday.
There are only 76 orcas left in Puget Sound, down from 98 in 1995. Their numbers have dipped due to pollution, underwater noise and disturbances from boat traffic, and lack of their favored prey. Recent deaths, particularly among calves, mothers and pregnant whales, appear to be driven by food scarcity.