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首页> 外文期刊>Mathematical research letters: MRL >Population dynamics of roundjaw bonefish Albula glossodonta at a remote coralline Atoll inform community-based management in an artisanal fishery
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Population dynamics of roundjaw bonefish Albula glossodonta at a remote coralline Atoll inform community-based management in an artisanal fishery

机译：在遥远的Coralline Atoll在遥远的Coralline Atoll中的人口动态，在遥远的Coralline Atoll在手工渔业中提供社区管理

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摘要

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-infinity 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.
机译：渔业管理需要了解剥削股的人口动态。为此，本研究采用了标志 - 重新捕获方法来表征蛔虫骨鱼Albula Glossodonta（Forsskal）的人口人口统计数据及其与法国波利尼西亚的Tuamotu群岛Anaa环礁的数据有限渔业的互动。在研究过程中，标记了2,509个骨鱼，重新填写了12.3％。基于捕获事件之间的FL的变化，key鱼的L-无限位估计为71cm叉长（FL），k为0.17。位于环礁的迁徙走廊中的手工鱼陷阱占重新夺回的94％，这些动作发生在持续的月球期间。由于Bonefish达到性成熟，捕捞死亡率增加，招募到4岁的陷阱渔业，并发病了产卵行为。年龄在3和5岁之间的Bonef鱼丰富估计为29,079人。本案例研究表明，标记重复填充知识差距的效用，妨碍了数据有限渔业的管理。最终，这些结果支持建立一个教育管理海洋地区和Rahui（季节性关闭）的复苏来管理这一渔业。

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