Marine ecosystem assessment in a fisheries management context
Marine ecosystem assessment in a fisheries management context
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DOI：
10.1139/f02-115
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发表时间：
2002-09-01
影响因子：
2.4
通讯作者：
Fogarty, MJ
中科院分区：
文献类型：
--
作者：
Link, JS;Brodziak, JKT;Fogarty, MJ
我们研究了一套非生物，生物和人类的指标，美国东北部大陆架生态系统在聚合，社区和系统水平（>30个不同的指标）超过三十年。我们的主要目标是描述生态系统的状态，以提高关键生态系统过程之间的关系的理解，并评估基于生态系统的渔业管理（EBFM）的潜在参考点。为此，对生态系统状况的经验指标进行了审查，并采用标准的多元统计方法来描述系统的变化。我们发现，（一）需要一套指标来准确地描述生态系统的状态，相反，专注于少数指标可能会产生误导;（二）生态系统状态的评估是可行的海洋生态系统;（三）多变量的参考点可以确定EBFM;和（四）参考方向的概念可以提供一个生态系统层面的模拟单物种的参考点。
We examined a suite of abiotic, biotic, and human metrics for the northeast U.S. continental shelf ecosystem at the aggregate, community, and system level (>30 different metrics) over three decades. Our primary goals were to describe ecosystem status, to improve understanding of the relationships between key ecosystem processes, and to evaluate potential reference points for ecosystem-based fisheries management (EBFM). To this end, empirical indicators of ecosystem status were examined and standard multivariate statistical methods were applied to describe changes in the system. We found that (i) a suite of metrics is required to accurately characterize ecosystem status and, conversely, that focusing on a few metrics may be misleading; (ii) assessment of ecosystem status is feasible for marine ecosystems; (iii) multivariate points of reference can be determined for EBFM; and (iv) the concept of reference directions could provide an ecosystem level analog to single-species reference points.