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Most krill are about 1–2 centimetres (0.4–0.8 in) long as adults. A few species grow to sizes on the order of 6–15 centimetres (2.4–5.9 in). The largest krill species, Thysanopoda spinicaudata, lives deep in the open ocean. [35] Krill can be easily distinguished from other crustaceans such as true shrimp by their externally visible ...
Antarctic krill can scrape off the green lawn of ice algae from the underside of pack ice. [13] [14] Krill have developed special rows of rake-like setae at the tips of their thoracopods, and graze the ice in a zig-zag fashion. One krill can clear an area of a square foot in about 10 minutes (1.5 cm 2 /s). Recent discoveries have found that the ...
Zooplankton are the heterotrophic component of the planktonic community (the "zoo-" prefix comes from Ancient Greek: ζῷον, romanized: zôion, lit. 'animal'), having to consume other organisms to thrive. Plankton are aquatic organisms that are unable to swim effectively against currents.
division 2.3 Toxic gas; Aerosols also fall into Class 2 divisions where an aerosol is defined as an article consisting of any non-refillable receptacle containing a gas compressed, liquefied or dissolved under pressure, the sole purpose of which is to expel a nonpoisonous (other than a Division 6.1 Packing Group III material) liquid, paste, or ...
The humpback whale (Megaptera novaeangliae) is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus Megaptera. Adults range in length from 14–17 m (46–56 ft) and weigh up to 40 metric tons (44 short tons). The humpback has a distinctive body shape, with long pectoral fins ...
Phytoplankton (/ ˌfaɪtoʊˈplæŋktən /) are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from the Greek words φυτόν (phyton), meaning ' plant ', and πλαγκτός (planktos), meaning 'wanderer' or 'drifter'. [1][2][3] Phytoplankton obtain their ...
Euphausia pacifica. Hansen, 1911 [1] Euphausia pacifica, the North Pacific krill, is a euphausid that lives in the northern Pacific Ocean. [2] In Japan, E. pacifica is called isada krill or tsunonashi okiami (ツノナシオキアミ). It is found from Suruga Bay northwards, including all of the Sea of Japan and the south-western part of the ...
Fully mature adult specimens average 2–2.5 m (6.6–8.2 ft) long and weigh around 225–250 kg (496–551 lb). [ 14 ] [ 15 ] The largest recorded specimen taken under International Game Fish Association rules was caught off Nova Scotia , an area renowned for huge Atlantic bluefin, and weighed 679 kg (1,497 lb) and was 3.84 m (12.6 ft) long.