Lionfish invasive species management in Brazil

Divers efforts are underway to manage the invasive lionfish (Pterois volitans) along the Brazilian coast, particularly in Fernando de Noronha and Bahia. In Fernando de Noronha, divers recently captured 138 lionfish during a management operation at a depth of 47 meters. Operation coordinator Fernando Rodrigues noted that the species is highly predatory, capable of consuming up to 20 small fish in 30 minutes, which threatens local marine biodiversity and endemic species.

The lionfish, native to the Indo-Pacific oceans, poses a significant risk to both ecological balance and public health. The species possesses 18 venomous spines that can cause intense pain, swelling, fever, nausea, and vomiting upon contact. While direct fatalities are rare, complications can include seizures or cardiac arrest. Experts advise that if stung, victims should immediately exit the water and apply warm water to help inactivate the toxin.