Krill Harvesting Threatens Whale Recovery

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Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.

Soaring human demand for krill in the Southern Ocean poses a challenge to the recovery of whale species once hunted nearly to extinction. Stanford researchers identify the growing food conflict and offer solutions.

Human harvesting of krill in the Southern Ocean could threaten the recovery of whale species that were nearly wiped out by industrial whaling in the 20th century, according to a Sept. 10 study in Nature Communications.

The tiny, shrimp-like crustaceans known as krill are the essential food source for baleen whales such as blues and humpbacks. To feed, these giant marine mammals take in great gulps of ocean water, filtering krill through bristly mouth structures. Booming demand for krill as fish meal and omega-3 fatty acid nutritional supplements, however, could leave whales without enough victuals to sustain even their diminished numbers.

Read more at: Stanford University

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