Lionfish and pufferfish spur caution in Mediterranean

Scientists report that the invasive lionfish (Pterois miles) has been repeatedly observed in the Bay of Kotor, Montenegro, following earlier sightings in the Adriatic since 2021. The tropical species reproduces prolifically, laying up to two million eggs per year, and has no natural predators in the region. While its venomous spines are not aggressive, authorities advise swimmers to wear protective footwear and treat any sting with heat, noting that the toxin is thermolabile. Experts also recommend a state‑backed removal programme and suggest that the fish could be incorporated into local cuisine to help control its population.

A separate invasive threat, the silver‑cheeked pufferfish (Lagocephalus sceleratus), is spreading through the Mediterranean, especially the Aegean Sea. Greek officials have introduced a bounty of €5.33 per kilogram of caught pufferfish to encourage fishermen to reduce its numbers. The species damages nets, competes with native fish and carries tetrodotoxin, which can cause severe poisoning if ingested. Similar incentive schemes exist in Turkey and have been funded by the EU in Cyprus, aiming to lessen ecological impact and protect public health.