Climate Change, Migration Phenology, and Fisheries Management Interact with Unanticipated Consequences
Climate Change, Migration Phenology, and Fisheries Management Interact with Unanticipated Consequences
复制标题
气候变化、洄游物候学和渔业管理相互作用，产生意想不到的后果
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
T. Miller
中科院分区：
文献类型：
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作者：
A. C. Peer;T. Miller
越来越多的证据表明，随着全球气温的升高，包括迁徙在内的生殖行为在一系列分类群中发生得更早。这些变化本身就具有重要的生态意义；然而，对于某些鱼类种群，管理做法可能在不知不觉中与气候引起的生殖物候变化相互作用，导致捕捞死亡率发生意想不到的变化。这种相互作用的可能性存在于切萨皮克湾条纹鲈鱼渔场，该渔场每年在产卵季节的同一周开放。较早的移民在渔场开放前产卵；然而，后来的迁徙者在到达产卵地之前很容易遭到捕捞。因此，如果有气候引起的条纹鲈鱼产卵物候变化，可能会发生意想不到的产卵前雌鱼的捕捞死亡率。为了评估这个暂时固定的捕鱼季节的潜在后果，我们分析了刺网捕捞数据的时间序列……
AbstractAccumulating evidence indicates that as global temperatures rise, reproductive behaviors, including migrations, are occurring earlier across a range of taxa. Alone, these changes are ecologically important; however, for some fish populations, management practices may unknowingly interact with climate-induced changes in reproductive phenology, leading to unanticipated changes in fishing mortality. The potential for such an interaction exists for the Chesapeake Bay Striped Bass Morone saxatilis fishery, which opens on the same week each year during the spawning season. Earlier migrants spawn before the fishery opens; however, later migrants are vulnerable to fishing before they reach the spawning grounds. Consequently, if there are climate-induced changes in Striped Bass spawning phenology, unexpected levels of fishing mortality may occur for egg-bearing, prespawn females. To evaluate the potential consequences of this temporally fixed fishing season, we analyzed a time series of gill-net catch data...