Scientists find ice fishing colony the size of Malta in the Antarctic Ocean

The biggest threat, he said, is climate change. Ice covers the area completely, but if it starts to melt, it will affect algae that grow on the bottom of the ice field. Icefish migrate to surface water to feed on zooplankton there, so changes in global warming patterns could affect this vital food source and give ripple effects up the food chain, Purser said.

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