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首页> 外文期刊>Ocean & coastal management >Measuring the impact of pollution closures on commercial shellfish harvest: The case of soft-shell clams in Machias Bay, Maine
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Measuring the impact of pollution closures on commercial shellfish harvest: The case of soft-shell clams in Machias Bay, Maine

机译：评估封闭污染对商业贝类捕捞的影响：以缅因州马基亚斯湾的软壳蛤为例

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摘要

Temporary closures of polluted coastal waters to shellfish harvesting protect human health but also generate broad socioeconomic impacts on rural, fishing-dependent communities. Improved understanding of these impacts could help coastal managers prioritize investments to protect water quality and mitigate the effects of coastal pollution. Using a regression model of monthly landings, we explore the impact of temporary closures on the commercial harvest of soft-shell clams (Mya arenaria) in the Machias Bay region of Maine (USA). We find that economic losses are significant and depend heavily on tidal activity, and the size, frequency and timing of closures. Over the nine-year sample period (2001 2009), temporary pollution closures contributed to the loss of 33.6 million in forgone revenue (2014 dollars), approximately 27.4% of total revenue. Closures linked to combined sewer overflows from the Machias wastewater system produce the majority of these losses ($2.0 million) with the largest occurring during the peak clamming season (May August). Our results highlight the variability of the impacts of closures and the information burden for efficient management of shellfish areas and coastal waters. By strategically reducing pollution, managers could limit public health risks, avoid destabilizing harvesting and revenue, and bolster the resilience of fishing communities. (C) 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
机译：暂时关闭被污染的沿海水域以捕捞贝类不仅可以保护人类健康，还可以对依赖捕鱼的农村社区产生广泛的社会经济影响。更好地了解这些影响可以帮助沿海管理者优先考虑投资，以保护水质并减轻沿海污染的影响。使用月度登陆量的回归模型，我们研究了临时关闭对缅因州（美国）马基亚斯湾地区软壳蛤（Mya arenaria）商业化收获的影响。我们发现经济损失是巨大的，并且在很大程度上取决于潮汐活动，封堵的规模，频率和时间。在为期9年的抽样期间（2001年至2009年），暂时性的污染封闭导致了3360万美元的收入损失（2014年美元），约占总收入的27.4％。 Machias废水系统的下水道溢流造成的关闭造成了大部分损失（200万美元），其中最大的损失发生在高峰期（5月）。我们的结果强调了封闭措施影响的可变性以及有效管理贝类地区和沿海水域的信息负担。通过从战略上减少污染，管理人员可以限制公共健康风险，避免破坏收成和收入的稳定，并增强捕鱼社区的复原力。 （C）2016作者。由Elsevier Ltd.发布。这是CC BY-NC-ND许可（http://creativecommons.org/licenses/by-nc-nd/4.0/）下的开放获取文章。

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