Fisheries management requires knowledge on the population dynamics of exploited stocks. To that end, the present study used a mark–recapture approach to characterise the population demographics of roundjaw bonefish Albula glossodonta (Forsskal) and their interaction with a data-limited fishery on Anaa Atoll in the Tuamotu Archipelago of French Polynesia. Over the course of the study, 2,509 bonefish were tagged and 12.3% were recaptured. The L ∞ of bonefish was estimated at 71 cm fork length (FL) with a K of 0.17, based on changes in FL between capture events. Artisanal fish traps located in the migratory corridors of the atoll accounted for 94% of recaptures and these movements occurred during the waning moon. Fishing mortality increased as bonefish reach sexual maturity, recruiting to the trap fishery at age 4 with the onset of spawning behaviour. Bonefish abundance between ages 3 and 5 was estimated to be 29,079 individuals. This case study demonstrated the utility of mark–recapture in filling knowledge gaps that impede the management of data-limited fisheries. Ultimately, these results supported the creation of an Educational Managed Marine Area and the resurgence of rahui (seasonal closure) to manage this fishery.

中文翻译：

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偏远珊瑚环礁的圆颚骨鱼 Albula glassodonta 的种群动态为手工渔业的社区管理提供信息

渔业管理需要了解被开发种群的种群动态。为此，本研究使用标记-重新捕获方法来描述圆颚骨鱼 Albula glossodonta (Forsskal) 的人口统计特征及其与法属波利尼西亚土阿莫土群岛阿纳环礁上数据有限渔业的相互作用。在研究过程中，2,509 条骨鱼被标记，12.3% 被重新捕获。根据捕获事件之间 FL 的变化，骨鱼的 L ∞ 估计为 71 厘米叉长 (FL)，K 为 0.17。位于环礁洄游走廊的手工捕鱼陷阱占重新捕获的 94%，这些运动发生在亏月期间。随着骨鱼达到性成熟，捕鱼死亡率增加，随着产卵行为的开始，在 4 岁时招募到诱捕渔业中。3 至 5 岁之间的梭鱼丰度估计为 29,079 只。本案例研究证明了标记重新捕获在填补阻碍数据有限渔业管理的知识空白方面的效用。最终，这些结果支持了教育管理海洋区的创建和 rahui（季节性关闭）的复苏以管理该渔业。