Arctic amphipod

Calanus glacialis is a small crustacean that drifts in cold Arctic seas.

In Norwegian Current food webs, Atlantic cod can also operate as a higher-level predator when it feeds on forage fish and large pelagic invertebrates.

Boreogadus saida, the polar cod, is a small schooling fish that plays a central role in Arctic and subpolar food webs.

Calanus finmarchicus is a small calanoid copepod that drifts through the water column of the North Atlantic.

Clupea harengus, the Atlantic herring, is a schooling pelagic fish that feeds on zooplankton in surface and near-surface waters.

Micromesistius poutassou is a pelagic gadiform fish that feeds on zooplankton and small nekton in the North Atlantic.

The Norwegian Current carries Atlantic water north along the Norwegian coast toward the Barents Sea and Arctic gateway. Spring blooms of diatoms and coccolithophores feed copepods, krill, fish, seabirds, seals, and whales. Because it links the North Atlantic to polar seas, it is a strong example of how circulation shapes subpolar food webs and ocean climate.