Order print   subscribe200


Study reveals lionfish established in Cyprus

shutterstock 288330971 1

Divers familiar with the Caribbean and western Atlantic will know all about the problems caused by invasive lionfish (Pterois miles). Far from their native home in the Indian Ocean, a few individuals were infamously released (whether accidentally or intentionally is still up for debate) off the coast of Florida in the early 1990s. Within a decade they were fully established across most of the Caribbean and the Gulf of Mexico. Eradicating lionfish from this part of the world has become a priority for restoring the health of the regional marine ecosystem.

Braving deep into territory in which many believed they wouldn’t be able to survive, lionfish are now being discovered in increasing numbers in the Mediterranean. ‘The lionfish are expanding fast,’ says Demetris Kletou, Director of the Marine and Environmental Research Lab, a marine environmental consultancy based in Cyprus. ‘Last I heard, they have reached Tunisia.’

Kletou and colleagues, working alongside the School of Marine Science and Engineering at Plymouth University, have published their latest research, in which they found this alien and highly venomous species to be rapidly colonising the eastern Mediterranean. Both sea surface warming and the recent expansion of the Suez Canal have allowed the lionfish to colonise almost the entire southeastern coast of Cyprus in just one year.

lionfishLionfish recently caught along the southeastern coast of Cyprus


‘Prey is naïve and doesn’t recognise lionfish as a potential predator,’ explains Kletou. ‘It is also possible that potential predators do not recognise lionfish as prey.’ With this Darwinian advantage, combined with high ecosystem versatility and fast reproductive rates (they spawn every four days, producing around two million buoyant gelatinous eggs per year), lionfish populations are able to grow extremely rapidly. This could lead to a devastating decline of local prey in the Mediterranean, as well as of other local predators who lose out through increased competition for food.

‘These impacts may also be felt by the fisheries and tourist sector,’ adds Kletou. ‘Incidences where naïve divers get stung by its toxic spines may also happen.’

He encourages rapid, targeted removal of the fish to try and stop the spread before it gets completely out of control.



Destinations Spotlight

Need inspiration for your next dive trip? Try one of our featured destinations from DIVE's travel partners.

Aqaba side finalBahamas side finalPhilippines 300x100 4

Mexico280 sthelena

DIVE Partners

WAKATOBI DIVE-online-300x100-B300x100 new buttonSiladen 300x100Egypt2016-1Sportif Dive online 2Aggressor 300x100Fisheye banner 300 x 100Oblu 100px X 300px


Read DIVE magazine

DIVE magazine is available to read on many devices. Simply click one one of the options below

PCMac final
Apple finalAndroid final