Mar Pollut Bull. 2012 Feb;64(2):373-81. doi: 10.1016/j.marpolbul.2011.10.033. Epub 2011 Dec 23.
Previous research to assess impacts from aggregate dredging has focussed on infaunal species with few studies made of fish entrainment. Entrainment evidence from hydraulic dredging studies is reviewed to develop a sensitivity index for benthic fish. Environmental monitoring attendant with the granting of new licences in the Eastern Channel Region (ECR) in 2006 offers a unique opportunity to assess the effects of dredging upon fish. Projected theoretical fish entrainment rates are calculated based upon: abundance data from 4m beam trawl sampling of fish species over the period 2005-2008; sensitivity data; and dredging activity and footprint derived from Electronic monitoring System (EMS) data. Results have been compared with actual entrainment rates and also against summary results from independent analysis of the changes in fish population over the period 2005-2008 (Drabble, 2012). The case is made for entrainment surveys to form part of impact monitoring for marine aggregate dredging.
先前评估砂石疏浚影响的研究主要集中在无脊椎动物物种上，很少有研究涉及鱼类的夹带问题。对水力疏浚研究中的夹带证据进行了回顾，以开发一种用于底栖鱼类的敏感性指数。2006 年在东海区域（ECR）授予新许可证时进行的环境监测为评估疏浚对鱼类的影响提供了一个独特的机会。根据以下数据计算了项目理论上的鱼类夹带率：2005-2008 年期间使用 4 米桁拖网对鱼类物种进行的丰度数据；敏感性数据；以及从电子监测系统（EMS）数据中得出的疏浚活动和足迹。将结果与实际夹带率进行了比较，也与 2005-2008 年期间鱼类种群变化的独立分析（Drabble，2012）的汇总结果进行了比较。夹带调查应作为海洋砂石疏浚影响监测的一部分，这一点是合理的。
