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Krill is a rich source of protein and omega-3 fatty acids which are under development in the early 21st century as human food, dietary supplements as oil capsules, livestock food, and pet food. [ 77 ] [ 79 ] [ 84 ] Krill tastes salty with a somewhat stronger fish flavor than shrimp.
Additionally, the iron-rich feces of krill-eating whales encourage phytoplankton growth, benefiting the marine food chain and sequestering carbon dioxide for extended periods. The Southern Ocean , rich in nutrients but iron-deficient, experiences increased phytoplankton blooms due to whale feces, acting as a significant carbon sink .
Blue whales appear to avoid directly competing with other baleen whales. [83] [84] [85] Different whale species select different feeding spaces and times as well as different prey species. [75] [86] [87] In the Southern Ocean, baleen whales appear to feed on Antarctic krill of different sizes, which may lessen competition between them. [88]
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Tiny but bountiful, Antarctic krill make up one of the planet’s largest biomasses, nourishing everything from fish to giant humpback whales. Lesser known is krill’s important role fighting ...
Whale oil is oil obtained from the blubber of whales. [1] Oil from the bowhead whale was sometimes known as train-oil , which comes from the Dutch word traan ("tear drop"). Sperm oil , a special kind of oil used in the cavities of sperm whales , differs chemically from ordinary whale oil: it is composed mostly of liquid wax .
In Rice's whales, contact with oil can also directly damage their baleen and thereby impair the ability to feed. Large oil spills require tremendous human effort to clean up, and some of the most efficient methods in doing so such as the use of dispersants can themselves be toxic to the whale. In addition, oil residue can persist in the ...
As the group circles a school of small fish such as salmon, krill, or herring, they use a team effort to disorient and corral the fish into a "net" of bubbles. [4] One whale will typically begin to exhale out of their blowhole at the school of fish to begin the process. [4] More whales will then blow bubbles while continuing to circle their prey.