Regulations for Tuna Longline or Purse Seine Fishing Vessels Proceeding to the Pacific Ocean for Fishing Operation Article 34

Any small scale longliner shall not target bigeye tuna.The targeting of bigeye tuna as referred to in the preceding paragraph means that the bigeye tuna catch amount of a fishing vessel during six months accounts 50% or more its total catch amount of the same period.Any small scale longliner fishing in the area north of the equator shall not target albacore tuna.The targeting of albacore tuna as referred to in the preceding paragraph means that the albacore tuna catch amount of a fishing vessel during six months accounts 50% or more of its total catch amount of the same period.
中文原文 鮪延繩釣或鰹鮪圍網漁船赴太平洋作業管理辦法第34條
小釣船不得以大目鮪為主要漁獲物。
前項所稱以大目鮪為主要漁獲物,指漁船六個月內之大目鮪漁獲量,占該期間總漁獲量百分之五十以上。
小釣船於赤道以北海域作業,不得以長鰭鮪為主要漁獲物。
前項所稱以長鰭鮪為主要漁獲物,指漁船六個月內之長鰭鮪漁獲量,占該期間總漁獲量百分之五十以上。

English translation for reference only; the Chinese text prevails. Not legal advice.