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Following the discovery of quagga mussels in Lake Mead, a variety of agencies, including National Park Service (NPS) Lake Mead National Recreational Area (LMNRA), Bureau of Reclamation (USBR), Southern Nevada Water Authority (SNWA), Nevada Department of Wildlife (NDOW), U.S. Fish and Wildlife (USFWS), Clean Water Coalition (CWC), and U.S. Geological Survey (USGS) have set up monitoring programs to evaluate and gain information to help minimize the impacts or potential impacts of quagga mussels to their facilities and lake ecology. Current monitoring activities and anticipated environmental impacts are depicted in Figures 1 and 2. While the agencies have worked closely and shared monitoring data and findings from the beginning of the infestation, there has been no documented comprehensive monitoring program to describe and record the various quagga mussel-related monitoring needs relative to interagency objectives for Lakes Mead and Mohave. Ad hoc interagency quagga mussel meetings attended by representatives of the above-listed agencies and others served as a springboard for gathering the information with which to establish this Interagency Monitoring Action Plan (I-MAP), which outlines agency objectives related to quagga mussel monitoring and provides approaches to realize these objectives. At the time of this document’s publication, the “I-MAP quagga mussel coordination team” included representatives from the following agencies: LMNRA, USBR, SNWA, NDOW, CWC, AZGFD, USFWS, MWD, UNLV, DRI, and UNR (Figure 3). I-MAP team members and their respective agencies provide technical, logistical, and financial support in monitoring quagga mussels and their environmental impacts to Lake Mead. The purpose of the I-MAP team is to coordinate monitoring relevant to the I-MAP.


Environmental monitoring; Interagency coordination; Introduced aquatic organisms; Quagga mussel; United States – Lake Mead National Recreation Area


Environmental Health and Protection | Environmental Monitoring | Fresh Water Studies | Terrestrial and Aquatic Ecology




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