IUU (illegal, unreported, and unregulated) fishing causes severe detrimental social, economic, and environmental impacts worldwide. Although this practice is prohibited in Marine Protected Areas (MPA), practices such as fishing with compressor devices have been reported at the Marine Extractive Reserve of Corumbau (MERC), Brazil. In this case study we use data on MERC fisher knowledge and attitudes concerning compressor fishing gathered through semi-structured interviews to discuss MPA strengths and weaknesses in preventing IUU fishing. Interviewees strongly oppose IUU fishing, complaining it is one of the main reasons for declines in local fishing yield. Respondents indicate that non-local compressor vessels were frequently observed prior to the establishment of MERC, and while such sightings are now less frequent, these vessels continue to appear. At the same time, respondents also indicate that marine environmental enforcement actions are rare. We discuss the roles, potentials, and limitations of MPAs in preventing illegal fishing and protecting fishers from competition with industrial fishing. We recommend the IUU be vigorously combated in Brazilian MPAs.

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关于在巴西东北部海洋保护区进行压缩机捕鱼的手工渔民知识和态度

IUU（非法、未报告和无管制）捕捞在全世界造成严重的不利社会、经济和环境影响。虽然这种做法在海洋保护区 (MPA) 中是被禁止的，但巴西科伦堡海洋采掘保护区 (MERC) 已经报告了使用压缩机设备捕鱼等做法。在本案例研究中，我们使用通过半结构化访谈收集的有关 MERC 渔民知识和态度的数据来讨论 MPA 在防止 IUU 捕鱼方面的优势和劣势。受访者强烈反对 IUU 捕捞，抱怨这是当地捕捞产量下降的主要原因之一。受访者表示，在 MERC 成立之前，经常观察到非本地压缩机容器，虽然现在这种情况不那么频繁了，这些船只继续出现。同时，受访者也表示，海洋环境执法行动并不多见。我们讨论了海洋保护区在防止非法捕捞和保护渔民免受工业捕捞竞争方面的作用、潜力和局限性。我们建议在巴西海洋保护区大力打击 IUU。