csr gktoday published this article page no 51 snow crabs thrive in cold waters below 2 degrees celsius but can tolerate temperatures up to 12 degrees celsius. however warmer ocean temperatures disrupted their metabolism causing a surge in their caloric requirements. during the two-year marine heatwave of 2018 and 2019 crabs likely needed up to four times more energy from food than in previous years. unfortunately the heatwave also disrupted the bering seas food web making it challenging for snow crabs to find sufficient nourishment. starvation is believed to be the primary cause of the crab population decline csr gktoday magazine subscription.
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