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首页> 外文期刊>ICES Journal of Marine Science >Evaluation of the effectiveness of marine reserves for transient spawning aggregations in data-limited situations
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Evaluation of the effectiveness of marine reserves for transient spawning aggregations in data-limited situations

机译：在数据有限的情况下评估海洋保护区对瞬时产卵聚集体的有效性

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摘要

Many coral reef fish species form predictable, transient spawning aggregations. Many aggregations are overfished, making them a target for spatial management. Here, we develop a per-recruit model to evaluate the performance of no-take marine reserves protecting transient spawning aggregations. The model consists of only 14 demographic and exploitation-related parameters. We applied the model to a protogynous grouper and a gonochoristic rabbitfish from Seychelles and tested six scenarios regarding the extent of protected areas, the level of fish spawning-site fidelity, and fishing effort redistribution post reserve implementation. Spawning aggregation reserves improve spawning-stock biomass-per-recruit and reduce the sex ratio bias in protogynous populations for all scenarios examined. However, these benefits are often small and vary among the different scenarios and as a function of sexual ontogeny. In all scenarios, increases in yield-per-recruit do not occur or are negligible. The long-term yield increases due to spawning aggregation reserves may still occur, but only if spawning-stock biomass recovery results in a recruitment subsidy. Given these limited benefits, the value of no-take reserves must be weighed against those of other management options, such as fishing effort reduction and seasonal fishery closures. The latter is particularly appropriate when spawning and non-spawning areas overlap in space.
机译：许多珊瑚鱼物种形成可预测的，短暂的产卵聚集体。许多聚集被过度捕捞，使它们成为空间管理的目标。在这里，我们开发了一个按征兵模型，以评估保护临时产卵聚集体的不捕捞海洋保护区的性能。该模型仅包含14个与人口统计和开发相关的参数。我们将模型应用到了来自塞舌尔的多嘴石斑鱼和角鲨鱼，并测试了六个场景，这些场景涉及保护区的范围，鱼产卵场所的保真度水平以及保护区实施后捕捞工作量的重新分配。在所有考察的情况下，产卵的聚集储备可提高产卵种群的新生，并减少原虫种群的性别比偏差。但是，这些收益通常很小，并且在不同情况下以及作为性个体发育的函数而有所不同。在所有情况下，每次招聘的收益都不会增加或可以忽略不计。产卵聚集储备可能仍会导致长期产量增加，但前提是产卵生物量的回收可带来招聘补贴。鉴于这些有限的收益，必须权衡不采取措施的储备金的价值与其他管理选择的价值，例如减少捕捞努力和季节性渔业关闭。当产卵区和非产卵区在空间上重叠时，后者特别合适。

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  • 来源
    《ICES Journal of Marine Science》 |2014年第3期|435-449|共15页
  • 作者

    Arnaud Gruess; David M. Kaplan; Jan Robinson;

  • 作者单位

    Institut de Recherche pour le Developpement (IRD), UMR EME 212 (IRD/Ifremer/Universite Montpellier 2), Centre de Recherche Halieutique Mediterraneenne et Tropicale, Avenue Jean Monnet, B.P. 171, 34203 Sete cedex, France;

    Institut de Recherche pour le Developpement (IRD), UMR EME 212 (IRD/Ifremer/Universite Montpellier 2), Centre de Recherche Halieutique Mediterraneenne et Tropicale, Avenue Jean Monnet, B.P. 171, 34203 Sete cedex, France;

    ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia,Seychelles Fishing Authority, PO Box 449, Fishing Port, Mahe, Seychelles;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coral reef fish; fisheries closures; marine conservation; marine protected areas; protogynous hermaphrodites; resource management;

    机译：珊瑚鱼;渔业关闭;海洋保护;海洋保护区;雌雄同体的雌雄同体;资源管理;

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