渔业“兼捕”问题有哪些行之有效的解决方案？
What effective solutions exist for the bycatch problem in fisheries?
兼捕指渔具误捕非目标物种，如海豚、海龟和幼鱼，这类渔获在全球总渔获中可能占很高比例。减少兼捕首先要改良渔具，例如使用海龟排除装置（TED）和驱离海豚的声学威慑器。其次要在空间和时间上划定禁渔区和禁渔期，并改用圆钩和改良刺网。此外，推广全程可追溯的MSC可持续认证，可以让消费者用购买选择来支持负责任的渔业。
Bycatch is the unintended capture of non-target species such as dolphins, sea turtles, and juveniles, and it can account for a large share of global catch. Reducing it starts with modified gear, such as turtle excluder devices (TEDs) and acoustic pingers that deter dolphins. Next come spatially and seasonally closed areas, plus circle hooks and improved nets. In addition, promoting fully traceable MSC-certified fisheries lets consumer choice reward responsible fishing.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
G. Tyler Miller,《Living in the Environment》Cengage 多版
G. T. Miller, Living in the Environment, Cengage Learning, various editions
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL66394W：Living in the environment
#兼捕 #海龟排除装置 #可持续认证
“总允许捕捞量”（TAC）是如何防止过度捕捞的？
How does the Total Allowable Catch (TAC) prevent overfishing?
渔业科学家基于种群评估估算可持续产量，政府据此设定总允许捕捞量（TAC），再分配给各渔船的捕捞配额，把“公海悲剧”变成可管理的分配。关键在于配额必须依据最新种群数据动态调整，并配合渔具限制与监测执法；只要科学与执法到位，多数鱼类种群都可以恢复。
Fishery scientists estimate sustainable yield from stock assessments; governments set the Total Allowable Catch (TAC) and allocate quotas to vessels, turning a tragedy of the commons into managed allocation. The key is adjusting quotas dynamically to the latest stock data, alongside gear restrictions and monitoring; with sound science and enforcement, most fish stocks can recover.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
G. Tyler Miller,《Living in the Environment》Cengage 多版
G. T. Miller, Living in the Environment, Cengage Learning, various editions
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL66394W：Living in the environment
#捕捞配额 #种群评估 #可持续渔业
海洋保护区为什么能提升周边渔业？
Why can marine protected areas boost neighbouring fisheries?
保护区内禁渔或限制捕捞，让鱼类得以生长繁殖，种群数量增加；由于鱼类会向保护区外迁移，成鱼不断“溢出”到邻近渔场，反而可能补充周边渔业。研究表明，设计良好、执法有效的保护区能够同时提升生物多样性和渔业产量。
Inside protected areas fishing is banned or limited, so fish grow and reproduce and populations swell; because fish move outward across the borders, adults spill over into adjacent grounds, potentially replenishing nearby fisheries. Studies show that well-designed, effectively enforced MPAs can raise both biodiversity and fishery yields.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#海洋保护区 #溢出效应 #渔业