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首页> 外文期刊>Conservation Biology >The impact of turtle excluder devices and fisheries closures on loggerhead and Kemp's ridley strandings in the western Gulf of Mexico
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The impact of turtle excluder devices and fisheries closures on loggerhead and Kemp's ridley strandings in the western Gulf of Mexico

机译：乌龟排除装置和渔业封锁对墨西哥湾西部的和肯普的里德利绞索的影响

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The Sea Turtle Stranding and Salvage Network has been monitoring turtle strandings for more than 20 years in the United States. High numbers of strandings in the early to mid-1980s prompted regulations to require turtle excluder devices (TEDs) on shrimping vessels (trawlers). Following year-round TED implementation in 1991, however, stranding levels in the Gulf of Mexico increased. We evaluated the efficacy of TEDs and other management actions (e.g., fisheries closures) on loggerhead (Caretta caretta) and Kemp's ridley (Lepidochelys kempii) turtle populations by analyzing a long-term, stranding data set from the western Gulf of Mexico. Our analyses suggest that both sea turtle population growth and shrimping activity have contributed to the observed increase in strandings. Compliance with regulations requiring turtle excluder devices was a significant factor in accounting for annual stranding variability: low compliance was correlated with high levels of strandings. Our projections suggest that improved compliance with TED regulations will reduce strandings to levels that, in conjunction with other protective measures, should promote population recoveries for loggerhead and Kemp's ridley turtles. Local, seasonal fisheries closures, concurrent with TED enforcement, could reduce strandings to even lower levels. A seasonal closure adjacent to a recently established Kemp's ridley nesting beach may also reduce mortality of nesting adults and thus promote long-term population persistence by fostering the establishment of a robust secondary nesting site. [References: 27]
机译：在美国，海龟搁浅和打捞网络已对海龟搁浅进行了20多年的监测。 1980年代初至中期，大量的搁浅活动促使法规要求在虾类船只（拖网渔船）上使用乌龟排除装置（TEDs）。然而，在1991年实施TED全年之后，墨西哥湾的搁浅水平增加了。通过分析来自墨西哥湾西部的长期搁浅数据集，我们评估了TEDs和其他管理措施（例如封渔）对（Caretta caretta）和肯普（Kemp）的ridley（Lepidochelys kempii）龟种群的功效。我们的分析表明，海龟种群的增长和虾的活动都导致了所观察到的搁浅的增加。遵守要求使用乌龟排除装置的法规是考虑每年搁浅变化的重要因素：低依从性与搁浅水平高相关。我们的预测表明，更好地遵守TED法规将使搁浅的程度降低，与其他保护措施一起，应能促进和肯普（Kemp）的ley龟的种群恢复。当地的季节性渔业关闭以及TED的实施可以将搁浅降低到更低的水平。与最近建立的肯普（Kemp）的里德利（Ridley）筑巢海滩相邻的季节性关闭也可以降低筑巢成年的死亡率，从而通过促进建立稳固的次要筑巢地点来促进长期种群持久性。 [参考：27]

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