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[[File:Antarctic toothfish-water.jpg|250px|left]]
[[File:Antarctic krill.jpg |250px|left]]
The '''[[Antarctic toothfish]]''' is a species of cod icefish native to the [[Southern Ocean]]. It is often mistakenly referred to as an [[Antarctica|Antarctic]] cod, consistent with the misnaming of other notothenioid Antarctic fish as rock cods. The generic name Dissostichus is from the Greek ''dissos'' (twofold) and ''stichu''s (line) and refers to the presence of two long lateral lines, which are very important to the species’ ecology. The common name "toothfish" refers to the presence of biserial dentition in the upper jaw, thought to give it a shark-like appearance.
'''[[Antarctic krill]]''' is a species of [[krill]] found in the [[Antarctica|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 individual animals per cubic meter. It feeds directly on minute phytoplankton, thereby using the primary production energy that the phytoplankton originally derived from the sun in order to sustain their open ocean life cycle.


It is mainly caught in the Ross Sea in the austral summer, but has also been recorded from Antarctic coastal waters south of the Indian Ocean sector, in the vicinity of the [[Antarctic Peninsula]], and near the South Sandwich Islands. In November 2010, the Marine Stewardship Council (MSC) certified the Ross Sea Antarctic toothfish fishery as a sustainable and well-managed fishery. During the 2013–14 season vessels operating under the Marine Stewardship Certification landed 51.3% of all Antarctic toothfish from the Ross Sea Region and 64.7% of Antarctic toothfish from the [[Amundsen Sea]] sector.
It grows to a length of 6 cm, weighs up to 2 grams, and can live for up to six years. It is a key species in the Antarctic ecosystem and is, in terms of biomass, probably the most abundant animal species on the planet. In 2019, the Antarctic krill was featured on a [[Stamps of Westarctica|stamp of Westarctica]] to celebrate its role as a vital part of the Antarctic ecosystem.


'''([[Antarctic toothfish|Full Article...]])'''
'''([[Antarctic krill|Full Article...]])'''

Latest revision as of 22:23, 1 January 2026

Antarctic krill.jpg

Antarctic krill 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 individual animals per cubic meter. It feeds directly on minute phytoplankton, thereby using the primary production energy that the phytoplankton originally derived from the sun in order to sustain their open ocean life cycle.

It grows to a length of 6 cm, weighs up to 2 grams, and can live for up to six years. It is a key species in the Antarctic ecosystem and is, in terms of biomass, probably the most abundant animal species on the planet. In 2019, the Antarctic krill was featured on a stamp of Westarctica to celebrate its role as a vital part of the Antarctic ecosystem.

(Full Article...)