A tuna longline fishing vessel as referred to in these Regulations means a fishing vessel targeting highly migratory species (as listed in Appendix 1), such as tunas, billfishes, or sharks, with longline fishing gears.Any longline fishing vessel not operating tuna longline fishery shall not target the highly migratory species as listed in Appendix 1.The targeting of highly migratory species as referred to in the preceding two paragraphs means the catch amount of highly migratory species during the first half or second half of the current year accounts for 50% or more of the total catch amount of the same period.Appendix 1 List of highly migratory species.PDF