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Calanus finmarchicus

A Big Climate Warning from One of the Gulf of Maine’s Smallest Marine Creatures

Whales, puffins and cod feast on the zooplankton Calanus finmarchicus. The tiny crustaceans fuel the vast North Atlantic food web, but they are threatened by warming waters.

By Derrick Z. Jackson

A species of zooplankton called Calanus finmarchicus floats in a sample jar in a laboratory at the Gulf of Maine Research Institute on Sept. 2, 2015. Credit: Gregory Rec/Portland Portland Press Herald via Getty Images)

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