By Bobby Bascomb Nearly all of Antarctica’s iconic wildlife, from penguins to seals and whales, depend on krill, tiny ...

"The krill and other zooplankton depend on microalgae as a food source at certain times of the year to reproduce. If zooplankton fail to reproduce, it disrupts the food chain, threatening fish ...

The key organism in the simple food chain is the shrimplike krill The waters around Antarctica, which support few species but large populations, are one of the richest biological provinces on earth.

Krill forms the base of the food chain, and may be at risk as well, explained Watters. “Climate change is a major force in that region, and is creating big changes in the (Antarctic Peninsula ...