1. Gulf of Maine Research Institute , Portland, ME 04101 , USA
2. Monterey Bay Aquarium Research Institute , Moss Landing, CA 95039 , USA
3. NOAA Physical Sciences Laboratory , Boulder, CO 80301 , USA
4. NOAA Fisheries , Gloucester, MA 01930 , USA
5. NOAA Fisheries , Woods Hole, MA 02543 , USA