The Dungeness crab's most important sense, of smell, is malfunctioning on an increasingly acidic planet. -
Because of its sweet, firm flesh, the Dungeness crab stands as one of the most popular types of seafood in the world, with more thanharvested each year. The study values the industry, in 2019, at about $250 million.
Like other fisheries, the Dungeness harvest must deal with an increasing amount of carbon dioxide in the atmosphere, which ocean water absorbs, turning it more acidic. While other studies have looked at the effects of climate change on marine wildlife, “This is the first study to look at the physiological effects of ocean acidification on the sense of smell in crabs,” Porteus says.
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