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Antarctic krill (Euphausia superba) is a species of krill found in the Antarctic waters of the Southern Ocean. It is a small, swimming crustacean that lives in large schools, called swarms , sometimes reaching densities of 10,000–30,000 animals per cubic metre. [ 3 ]
The present estimate for the biomass of Antarctic krill (Euphausia superba) is 379 million tonnes. [1] The total global harvest of krill from all fisheries amounts to 150–200,000 tonnes annually, mainly Antarctic krill and North Pacific krill (E. pacifica). Krill are rich in protein (40% or more of dry weight) and lipids (about 20% in E ...
Acetes is a genus of small shrimp that resemble krill, which is native to the western and central Indo-Pacific, the Atlantic coast of the Americas, Pacific coast of South America and inland waters of South America.
Currently less than 1% of the estimated 60 million metric tons of krill found in the main Antarctic fishing grounds — an area larger than the U.S. — is being caught.
A humpback whale, likely lured by a trawling net capturing masses of Antarctic krill, became entangled last month and died in the Southern Ocean. Scientists say the humpbacks may have been ...
The Antarctic krill is an important species in the context of biogeochemical cycling [74] [42] and in the Antarctic food web. [ 75 ] [ 76 ] It plays a prominent role in the Southern Ocean because of its ability to cycle nutrients and to feed penguins and baleen and blue whales .
Arctic and Antarctic marine systems have very different topographical structures and as a consequence have very different food web structures. [121] Both Arctic and Antarctic pelagic food webs have characteristic energy flows controlled largely by a few key species. But there is no single generic web for either.
Decapoda is a group with 15,000 species [5] which have 5 pairs of thoracopods and a well-developed carapace that covers the gills (which are exposed in krill). They include lobsters, crabs, shrimp and prawns.