The overfishing of krill, which plays a large role in the Antarctic ecosystem, led officials to enact regulations on fishing.

A decline of krill due to melting of the ice shelf could wreck much of the Antarctic ecosystem that depends on them.

Whatever is behind the correlation between sea ice decline and krill declines, the future of the Antarctic ecosystem hangs in the balance.

If the Antarctic ecosystem collapses, it won't be because scientists were off on a misguided search for penguin eggs.

Adaptations within the Antarctic marine benthic ecosystem.

First, it is said that tourists injure the Antarctic ecosystems and interfere with plant and animal life.

The next size step in the food chain to the whales is also enormous, a phenomenon only found in the Antarctic ecosystem.

Krill-related work was welcomed but relatively little progress was made toward understanding the role of whales in the Antarctic ecosystem.

It was designated as such because it contains representative examples of terrestrial Antarctic ecosystems.

Limacina antarctica is a keystone species of the mesozooplankton of Antarctic pelagic ecosystems.