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首页> 外文期刊>ICES Journal of Marine Science >Balanced harvesting in fisheries: a preliminary analysis of management implications
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Balanced harvesting in fisheries: a preliminary analysis of management implications

机译：渔业收成平衡：对管理影响的初步分析

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摘要

Balanced harvest (BH) proposes to distribute a moderate mortality from fishing across the widest possible range of species, stocks, and sizes in an ecosystem, in proportion to their natural productivity so that the relative size and species composition are maintained, in line with the CBD requirement for sustainable use. This proposal has many and not always intuitive implications for fisheries management, e.g. in relation to selectivity, protection of juveniles and spawning sites, models of harvesting strategies, a focus on size and species, the impacts of discarding, aspects of emblematic species and ecosystem services, operational complexity, partial implementation, ecosystem rebuilding, and relations with broader management frameworks. The paper closes with a discussion of BH implementation, concluding that a logical step would be to integrate several separate initiatives to move fisheries into a more ecosystem-conscious context. Implementation challenges will be encountered, but there are lessons to be drawn from fishery ecosystems already close to BH, as in some tropical multispecies fisheries, and further, the implementation challenges are already being taken on in many well-managed fisheries and areas as management begins to address the realities of what ecosystem-based fishery management actually entails.
机译：平衡收获（BH）建议在捕捞过程中，将捕捞造成的中等死亡率分配给生态系统中尽可能广泛的物种，种群和大小，并与自然生产力成正比，从而保持相对大小和物种组成，与CBD可持续利用要求。该建议对渔业管理有很多但并非总是直观的影响，例如关于选择性，少年和产卵场的保护，收获策略的模型，对大小和物种的关注，丢弃的影响，标志性物种和生态系统服务的各个方面，业务复杂性，部分实施，生态系统的重建以及与更广泛的关系管理框架。本文以对BH实施的讨论作为结尾，认为合理的步骤将是整合几个单独的举措，以使渔业进入更具生态系统意识的环境。将会遇到实施方面的挑战，但是就像某些热带多物种渔业一样，已经从波黑附近的渔业生态系统中吸取了教训，而且，随着管理的开始，许多管理良好的渔业和地区已经面临实施方面的挑战。解决基于生态系统的渔业管理实际需要的现实。

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