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Between 2018 and 2021, there was an unexpected 92% decline in snow crab abundance, or about 10 billion crabs. The crabs had been plentiful in the years prior, puzzling scientists and crabbers alike.
About 10 billion snow crabs disappeared from the Bering Sea between 2018 and 2021. A recent study concluded that warmer water temperatures helped drive the crabs to starvation.
Snow crabs, a cold-water Arctic species, thrive overwhelmingly in areas where water temperatures are below 2 degrees Celsius, though they can physically function in waters up to 12 degrees Celsius.
Chionoecetes opilio, a species of snow crab, also known as opilio crab or opies, is a predominantly epifaunal crustacean native to shelf depths in the northwest Atlantic Ocean and north Pacific Ocean. It is a well-known commercial species of Chionoecetes, often caught with traps or by trawling.
The generic name Chionoecetes means snow (χιών, chion) inhabitant (οἰκητης, oiketes); [3] opilio means shepherd, and C. opilio is the primary species referred to as snow crab. Marketing strategies, however, employ snow crab for any species in the genus Chionoecetes. The name "snow crab" refers to their being commonly found in cold ...
Chionoecetes bairdi is a species of snow crab, alternatively known as bairdi crab and tanner crab. C. bairdi is closely related to Chionoecetes opilio, and it can be difficult to distinguish C. opilio from C. bairdi. Both species are found in the Bering Sea and are sold commercially under the name "snow
Billions of snow crabs have disappeared from the ocean around Alaska in recent years, and scientists now say they know why: Warmer ocean temperatures likely caused them to starve to death.
In 2009, Eduardo Spivak tallied the number of scientific papers published about different crab species over the previous 23 years, and found that Neohelice granulata was the sixth most studied crab species, after Carcinus maenas, Callinectes sapidus, Scylla serrata, Cancer pagurus and Metacarcinus magister, but ahead of the invasive and edible ...