Soviet scientists released red king crabs into the Barents Sea in the 1960s to build a new fishing industry, but decades later, the giant crabs have spread across Russian and Norwegian waters, altering seafloor communities as they feed on native marine life
Soviet scientists introduced red king crabs to the Barents Sea in the 1960s. These crabs have since spread aggressively, altering local marine habitats. Their feeding habits reduce seabed diversity and biomass significantly. While economically valuable, they damage fishing gear and consume targeted catches. Management now focuses on containment and structured harvesting of these invasive creatures.
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