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University of Bologna scientists use octopuses to fight blue crab invasion
Scientists from the University of Bologna have launched the ‘Octo-Blu’ project in the Adriatic Sea to combat the invasive blue crab population. The project involves releasing thousands of young octopuses into the sea to act as a natural predator against the crabs, which have devastated local shellfish industries.
Native to the North American Atlantic coast, blue crabs likely entered the Mediterranean via ship ballast water. Their population has surged recently, a trend researchers and fishermen attribute to rising sea temperatures caused by climate change. In the Emilia-Romagna region alone, the species has caused nearly 17 million euros in damages since 2022, while the farming group Coldiretti estimates total losses across Italy at approximately 200 million euros.
The blue crabs are particularly destructive to clams, mussels, and pink oysters in areas like the Po River delta. By introducing the common octopus—a formidable natural predator of crustaceans—researchers hope to restore ecological balance and protect the livelihoods of local fishermen.
Entities
Adriatic Sea · Antonio Casalini · Coldiretti · Emilia-Romagna · Po River Delta · University of Bologna · University of Siena
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 4 SOURCES] Blue crabs are native to the North American Atlantic coast and likely entered the Mediterranean via ship ballast water. uzalendonews.co.ke · www.euronews.com · it.euronews.com · tr.euronews.com
- [● 2 SOURCES] The Octo-Blu project is breeding octopus hatchlings to act as a biological control against the invasive crabs. uzalendonews.co.ke · tr.euronews.com
- [● 4 SOURCES] The blue crab species caused nearly 17 million euros in damages in the Emilia-Romagna region since 2022. uzalendonews.co.ke · www.euronews.com · it.euronews.com · tr.euronews.com
- [● 4 SOURCES] The blue crab invasion has caused approximately 200 million euros in damages to the Italian fishing industry. uzalendonews.co.ke · www.euronews.com · it.euronews.com · tr.euronews.com
- [● 3 SOURCES] Warming waters allow blue crabs to thrive and reproduce year-round, as temperatures no longer drop below the 10°C threshold that previously limited them. www.euronews.com · it.euronews.com · tr.euronews.com
- [● 4 SOURCES] The common octopus is being used to combat the invasive blue crab population in the Adriatic. uzalendonews.co.ke · www.euronews.com · it.euronews.com · tr.euronews.com