The responses of small-scale coastal fisheries to pauses in effort and trade are an important test of natural resource management theories with implications for the many challenges of managing common-pool resources. Three Covid-19 curfews provided a natural experiment to evaluate fisheries responses adjacent a marine reserve and in a management system that restricted small-mesh drag nets. Daily catch weights in ten fish landings were compared before and after the curfew period to test the catch-only hypothesis that the curfew would reduce effort and increase catch per unit effort, per area yields, and incomes. Interviews with key informants indicated that fisheries effort and trade were disrupted but less so in the gear-restricted rural district than the more urbanized reserve landing sites. The expected increase in catches and incomes was evident in some sites adjacent the reserve but not the rural gear restricted fisheries. Differences in compliance and effort initiated by the curfew, changes in gear, and various negative environmental conditions are among the explanations for the variable catch responses. Rates of change over longer periods in CPUE were stable among marine reserve adjacent landing sites but declined faster after the curfew in the gear-restricted fisheries. Two landing sites nearest the southern end of the reserve displayed a daily 45 % increase in CPUE, 25–30 % increase in CPUA, and a 45–56 % increase in incomes. Results suggest that recovering stocks will succeed where authorities can achieve compliance, near marine reserves, and fisheries lacking additional environmental stresses.

小规模沿海渔业对捕捞量和贸易暂停的反应是对自然资源管理理论的重要考验，对管理公共池资源的许多挑战具有影响。三个 Covid-19 宵禁提供了一个自然实验，用于评估海洋保护区附近和限制小网状拖网的管理系统中的渔业反应。比较了宵禁前后十次鱼上岸的每日捕获重量，以检验仅捕获的假设，即宵禁会减少努力并增加单位努力的捕获量、单位面积的产量和收入。对主要知情人的采访表明，渔业活动和贸易受到干扰，但在渔具受限的农村地区，受影响程度低于城市化程度较高的保护区登陆点。在保护区附近的一些地点，渔获量和收入的预期增长是明显的，但农村渔具限制了渔业。宵禁、渔具变化以及各种负面环境条件导致的遵守情况和努力程度的差异是造成渔获量反应变化的原因之一。在邻近登陆点的海洋保护区中，CPUE 的长期变化率保持稳定，但在渔具限制渔业实施宵禁后下降得更快。距离保护区南端最近的两个着陆点显示，CPUE 每天增加 45%，CPUA 每天增加 25-30%，收入每天增加 45-56%。结果表明，在当局能够实现合规、靠近海洋保护区以及没有额外环境压力的渔业的地方，恢复种群将会成功。