1. Integrated Statistics, 16 Sumner Street, Woods Hole, Massachusetts 02543, USA
2. National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Science Center, Protected Species Branch, 166 Water Street, Woods Hole, Massachusetts 02543, USA
3. Massachusetts Division of Marine Fisheries, Annisquam River Marine Fisheries Field Station, 30 Emerson Avenue, Gloucester, Massachusetts 01930, USA
4. National Oceanic and Atmospheric Administration, National Ocean Service, Office of National Marine Sanctuaries, Stellwagen Bank National Marine Sanctuary, 175 Edward Foster Road, Scituate, Massachusetts 02066, USA
5. Cornell University, Laboratory of Ornithology, Bioacoustics Research Program, 159 Sapsucker Woods Road, Ithaca, New York 14850, USA
6. University of Massachusetts, Dartmouth, School for Marine Science & Technology, 200 Mill Road, Suite 325, Fairhaven, Massachusetts 02719, USA