Sentences with phrase «certain whale populations»
In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine species.
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In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine species.
Not exact matches
Meanwhile, populations of certain species of Antarctic penguins such as the Adélie are dwindling, and Antarctic krill — the tiny crustaceans that feed whales and many other animals — are also on the decline.