The government has given full legal protection to the common thresher shark, making it an offence to deliberately catch, harm or kill the species in Manx waters.
The move follows the shark’s addition to Schedule 5 of the Wildlife Act 1990, after it was listed on Appendix I of the Convention on Migratory Species earlier this year, an international treaty to which the island is bound.
Thresher sharks, which can reach six metres in length, are occasionally seen feeding on herring and mackerel around the Isle of Man during summer.
Their distinctive elongated tail fin makes them instantly recognisable.
The species is classed as Vulnerable on the IUCN Red List, facing global pressures from accidental capture and international trade.
While the island has no commercial shark fishery, any sharks caught unintentionally are already released, reflecting what government described as the industry’s commitment to sustainable practice.
Environment Minister Clare Barber MHK said: “The thresher shark is a remarkable species, and I’m pleased that the Isle of Man is playing its part in securing its future. This protection reflects both our international responsibilities and the genuine commitment our fishing industry already shows to sustainable, responsible practice.
“The Isle of Man’s waters are an important habitat for migratory marine species, and we are determined to protect them,” she added.
The new legal protections came into force on June 27.
