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Krill belong to the large arthropod subphylum, the Crustacea. The most familiar and largest group of crustaceans, the class Malacostraca, includes the superorder Eucarida comprising the three orders, Euphausiacea (krill), Decapoda (shrimp, prawns, lobsters, crabs), and the planktonic Amphionidacea. The order Euphausiacea comprises two families.
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 ]
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. [10] [11] [12] Most krill is processed to produce fish food for use in aquariums and aquacultures. The krill is sold freeze-dried, either whole or ...
One of the most fascinating facts about these animals is that they reach such mind-boggling size by almost exclusively consuming tiny shrimp like organisms called krill. During feeding season ...
Over 60% by weight of all crustaceans caught for consumption are shrimp and prawns, and nearly 80% is produced in Asia, with China alone producing nearly half the world's total. [74] Non-decapod crustaceans are not widely consumed, with only 118,000 tons of krill being caught, [74] despite krill having one of the greatest biomasses on the ...
They feed almost exclusively on krill, which are small, shrimp like invertebrates that are on average only 1 or 2 centimeters long. They eat 4 to 6 tons of krill a day.
Euphausia is the largest genus of krill, and is placed in the family Euphausiidae.There are 31 species known in this genus, including Antarctic krill (Euphausia superba) and ice krill (Euphausia crystallorophias) from the Southern Ocean, and North Pacific krill (Euphausia pacifica) in the Pacific Ocean.
Krill and copepods are not as widely fished, but may be the animals with the greatest biomass on the planet, and form a vital part of the food chain. The scientific study of crustaceans is known as carcinology (alternatively, malacostracology , crustaceology or crustalogy ), and a scientist who works in carcinology is a carcinologist .