Circumpolar Organism

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Circumpolar Organism

 

any animal or plant species whose range girdles either of the polar regions. There are many circumpolar organisms. Arctic land-dwelling forms include the arctic fox, reindeer, ptarmigan, and polar willow; aquatic circumarctic animals include the walrus, the narwhal, the white whale, the arctic cod, the isopod Mesidotea entomon, and mollusks of the genus Joldia. Circumpolar organisms in the antarctic include the Weddell seal, the Adelie penguin, finback and other whales, fishes of the genus Notothenia, almost all pelagic invertebrates (including krill), many benthic invertebrates, algae of the genus Desmarestia, and mosses of the genus Sarconeurum.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.