1. National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Science Center, 17 Godfrey Drive, Suite 1, Orono, Maine 04473, USA
2. National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, Massachusetts 02543, USA
3. Biology Department, State University of New York College at Oneonta, Room 113A, Science 1, Oneonta, New York 13820, USA