Abstract The Great Lakes are influenced by established aquatic invasive species (AIS) and the threat of new invaders persists. Grass carp, one of four species commonly referred to as Asian carp, are considered invasive because of their ability to adversely modify aquatic habitat through consumption of aquatic macrophytes. Grass carp have been infrequently detected in the Great Lakes since the mid-1980s. More frequent reports of grass carp captures from commercial fishermen in the early 2010’s elevated the concern of the potential risk of colonization in Lake Erie. This paper provides a case study detailing the development and implementation of a multi-jurisdictional response strategy for grass carp in Lake Erie. To respond to threats of grass carp in Lake Erie, Michigan and Ohio Departments of Natural Resources led targeted responses using a collaborative multi-jurisdictional approach, while simultaneously investing in reducing critical life-history uncertainties to refine strategies in an adaptive and science-based manner. Efforts to address uncertainties about grass carp life history documented spawning in two Lake Erie tributaries. Building on these early responses, the binational Lake Erie Committee developed a five-year adaptive response framework to guide response actions. The collaborative response efforts resulted in the capture and removal of 184 fertile grass carp since 2014, and efforts are ongoing to increase effectiveness of strategies to achieve desired population reduction. Coordinated grass carp response actions under the five-year strategy will continue using adaptive management principles with outcomes providing useful insights for adapting existing response frameworks and more broadly for AIS responses implemented elsewhere.

中文翻译：

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对伊利湖草鱼实施多辖区响应的适应性管理方法

摘要 五大湖受到已建立的水生入侵物种 (AIS) 的影响，新入侵者的威胁持续存在。草鱼是通常被称为亚洲鲤鱼的四种物种之一，被认为具有入侵性，因为它们能够通过食用大型水生植物来不利地改变水生栖息地。自 1980 年代中期以来，在五大湖中很少发现草鱼。2010 年初商业渔民捕获草鱼的更频繁的报告引发了对伊利湖潜在殖民风险的担忧。本文提供了一个案例研究，详细介绍了伊利湖草鱼多辖区应对策略的制定和实施。为了应对伊利湖草鱼的威胁，密歇根州和俄亥俄州自然资源部使用协作的多辖区方法领导有针对性的响应，同时投资于减少关键的生活史不确定性，以适应性和基于科学的方式完善策略。努力解决草鱼生活史的不确定性记录在伊利湖的两条支流产卵。在这些早期响应的基础上，两国伊利湖委员会制定了一个为期五年的适应性响应框架来指导响应行动。自 2014 年以来，协作响应工作已捕获和清除了 184 条可育草鱼，并且正在努力提高战略的有效性，以实现预期的种群减少。