This year’s marine heat waves and spiking ocean temperatures foretell big changes in the future for some of the largest fish in the sea, such as sharks, tunas and swordfish.
The rising temperatures of the oceans are especially dangerous for these fish because warming makes their open-water habitats less suitable, scientists who study the species said. Loss of habitat could largely remove some of the most important predators — and some of the most commercially important seafood species — from the ocean.
