Disease die-off? Consumed by Pacific Cod? A new look at the dwindling number of snow crabs in the Bering Sea.
ANCHORAGE, Alaska - An increase in temperature changes in the Bering Sea is linked to the decline of snow crabs, according to ongoing studies from the National Oceanic and Atmospheric Administration .
“In those two years, 2018 and 2019, the Bering Sea was very warm,” Ben Daly, with the Alaska Department of Fish and Game, said.“The belief is that those warm conditions were detrimental to the population,” Daly said. “There was a high, natural mortality event that occurred in 2018 and 2019.” Ongoing studies from NOAA indicate there could be a direct correlation between the high temperatures seen in the Bering Sea and the now-vanishing snow crab population — but researchers aren’t sure why just yet. They are predicting that the high temperatures could be causing an indirect — or even direct impact — on the crabs.
One of the other theories, Daly explained, is starvation. According to Daly, the changing temperatures could have caused an increase in the crabs’ metabolism.
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