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A blue whale calf with its mother near the coast of island Pico ... Its diet is mainly comprised of krill and small crustaceans, along with the occasional small fish. To feed, a blue whale will ...
The blue whale's diet consists almost exclusively of krill. [34] Blue whales capture krill through lunge feeding; they swim towards them at high speeds as they open their mouths up to 80°. [34] [69] They may engulf 220 metric tons (220 long tons; 240 short tons) of water at one time. [73]
In 2010, researchers found whales carry nutrients from the depths of the ocean back to the surface using a process they called the whale pump. [29] Whales feed at deeper levels in the ocean where krill is found, but return regularly to the surface to breathe. There whales defecate a liquid rich in nitrogen and iron.
In general, blue whale populations migrate between their summer feeding areas near the poles and their winter breeding grounds near the tropics. There is also evidence of year-round residencies, and partial or age/sex-based migration. Blue whales are filter feeders; their diet consists almost exclusively of krill. They are generally solitary or ...
Blue whales eat almost 9,000 pounds of krill daily, and when it's their feeding season, they eat up to 40 million krill a day. Treehugger also shared this cool fact, "Blue whales, in fact, are the ...
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At times, large whales aggregate in tremendous numbers, with as many as 186 unique photo identifications occurring in a single day. Understanding the causes of this aggregation, such as bloom dynamics of the krill the whales feed on, can provide valuable forecasting information to predict where whales are likely to be in the near term. [11]
Blue whales can grow up to 100 feet long and weigh about 200 tons — that makes them ... acidification of the ocean and other factors are making the whales' main food source, krill, harder to ...