Climate change takes habitat from big fish, the ocean's key predators

“Across the board, with life histories so different, we see this consistent signal of loss of habitat,” Braun said. “For sure, their habitat will change. How they respond to that is an open question.”

Large fish are important to healthy oceans because many of them, such as white sharks, are apex predators and serve as vital pieces of the top of the food chain. But some are also economically important to humans as food. Fishing vessels will also need to adapt their strategies by fishing in different places or at different times of the year, said Tobey Curtis, a fishery management specialist with the National Oceanic and Atmospheric Administration who worked on the Woods Hole study. Climate models used for the study can help project the magnitude of the changes and plan for them, Curtis said.

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