1. Department of Wildlife, Fisheries, and Conservation Biology University of Maine 5755 Nutting Hall Orono Maine 04469 USA
2. U.S. Geological Survey, Maine Cooperative Fish and Wildlife Research Unit, and Department of Wildlife, Fisheries, and Conservation Biology University of Maine 5755 Nutting Hall Orono Maine 04469 USA
3. Department of Fisheries and Wildlife Michigan State University 480 Wilson Road East Lansing Michigan 48824 USA
4. National Oceanic and Atmospheric Administration Fisheries Service, Greater Atlantic Regional Fisheries Office 55 Great Republic Drive Gloucester Massachusetts 01930 USA
5. Gomez and Sullivan Engineers DPC 41 Liberty Hill Road, Building 1 Henniker New Hampshire 03242 USA