Krill are small shrimp-like crustaceans that live in many marine ecosystems. In the Arctic, they eat phytoplankton and are in turn ... Polar bears are the top of the Arctic's land-based food chain.

The Melting Arctic’s Impact on Its Ecosystem. June 10, 2008. ... it is important to understand that the thaw will have immediate effects on everything in the marine food chain, ...

Aarhus University. (2025, June 13). Toxic tides: Centuries-old mercury is flooding the arctic food chain. ScienceDaily. Retrieved July 12, 2025 from www.sciencedaily.com / releases / 2025 / 06 ...

While not appetizing to you or me, Melosira arctica forms the foundation of the Arctic Ocean food chain. During the spring and summer, its individual photosynthetic cells grow quickly, absorbing ...

A food web is a sprawling map of ecological connections that combines all the different food chains within an ecosystem. Individual food chains contain primary producers, which derive energy from ...

The dovekie (Alle alle) is key to the Arctic ecosystem: It fertilizes the land and is a food source for many other species. Its decline ripples through the plant world and up the food chain. Image ...

Researchers have measured toxins in scat samples from 205 bowhead whales from the Beaufort Sea, collected over 19 years, and ...

Algae is important to the food chain in the Arctic, however too much can have negative effects on the ecosystem. There are concerns about the long-term impacts.

Long term damage. Mercury is a toxic metal that poses a threat to both humans and other wildlife. "Mercury builds up in the food chain over time, and continued exposure, even at low levels, can ...

Other animals, like diving seabirds, walruses and seals, then eat those animals, providing this year-round transfer of sea ice carbon into the food web to fuel the ecosystem. 'We think this might be ...