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Italy unleashes 'octopus army' to battle devastating crab invasion

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Italy unleashes 'octopus army' to battle devastating crab invasion

TL;DR

  • Italy released 130,000 infant common octopuses into the Adriatic Sea as part of the 'Octo-Blu' initiative to combat an invasion of blue crabs.
  • The invasive blue crabs have caused an estimated £170 million in damage to Italy's fishing and aquaculture industries, devastating clam and mussel stocks.
  • Researchers have created artificial underwater shelters to protect the vulnerable octopus hatchlings.
  • Scientists believe adult octopuses can each devour up to four blue crabs per day, with a significant impact on the invasive population.
  • Despite a high mortality rate for the hatchlings, researchers are continuing to breed and release more octopuses.
  • Italy is also promoting the consumption of blue crabs as a gastronomic solution, but consumer demand has not significantly reduced their population.
  • The blue crabs are believed to have entered the Mediterranean through ships' ballast water.