arcticus

Malm adds, in confirmation of the above view, that the adult Trachypterus arcticus, which is not a member of the Pleuronectidæ, rests on its left side at the bottom, and swims diagonally through the water; and in this fish, the two sides of the head are said to be somewhat dissimilar.

VII. Miscellaneous Objections to the Theory of Natural Selection 1909

Southern areas include such herbs as the Arctic poppies (Papaver spp.), wood rush (Luzula spp.), wire rush (Juncus arcticus), and moss.

Arctic 2010

Snow as a factor in the winter ecology of the barren-ground caribou (Rangifer arcticus).

Climate change and reindeer nomadism in Finnmark, Norway 2010

Other arctic species used locally include Atlantic salmon (Salmo salar), lake trout (Salvelinus namaycush), several species of whitefish, pike, and grayling (Thymallus arcticus).

Indigenous peoples, animals, and climate in the Arctic 2009

Fish and crustaceans in northeast Greenland lakes with special emphasis on interactions between Arctic charr (Salvelinus alpinus), Lepidurus arcticus and benthic chydorids.

Historical changes in freshwater ecosystems in the Arctic 2009

Although '' O. arcticus '' is most commonly found under small stones and in rock crevices, and is thus rather unexposed, it has some pigmentation.

Phenotypic responses of arctic species to changes in climate and ultraviolet-B radiation 2009

Yellowstone cut-throat trout Oncorhyncus clarki bouvieri and Arctic grayling Thymallus arcticus (V), are protected by regulations that also permit taking of non-native introduced species.

Yellowstone National Park, United States 2009

Evidence from field studies of a stream fish, the Arctic grayling (Thymallus arcticus), also suggests that a population at the northern limit of its distribution is unlikely to survive an increase of only a few degrees in summer water temperatures.

Broad-scale effects of climate change on freshwater systems in the Arctic 2009

Four species of Collembola on Svalbard were investigated by Leinaas [175] with respect to UV-B radiation tolerance: '' Hypogastrura viatica '', '' Folsomia sexoculata '', '' Onychiurus groenlandicus '', and '' O. arcticus ''.

Phenotypic responses of arctic species to changes in climate and ultraviolet-B radiation 2009

Arctic grayling Thymallus arcticus signifer, Dolly Varden trout Salvelinus alpinus malma and lake trout Salvelinus namaycush are common in the streams that flow into the Nahanni and Flat Rivers.

Nahanni National Park Reserve, Canada 2008