yes they do, they have many thee are called swimmerets
Euphasia superba grow six thoracopods.
Antarctic krill was created in 1850.
Euphausia
Krill are measured in tonnes, and the number is large enough to outweigh any of their predators. Krill are a key to the Antarctic food chain in Antarctic waters.
There is no commercial krill fishing in the oceans that surround the Antarctic continent -- the Antarctic Treaty forbids it.
krill
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Krill survive in the Southern Ocean which surrounds the Antarctic continent.
Too many to count.
Fish, krill, copepods.
The dominant herbivors in the Antarctic food web is indeed krill.
Absolutely nothing. Antarctic krill are massively abundant. They are on of the most abundant creatures on the planet. Dont worry about them.