1. Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, NC, USA
2. National Oceanographic and Atmospheric Administration, Northeast Fisheries Science Center, Woods Hole, MA, USA
3. Coonamessett Farm Foundation, East Falmouth, MA, USA
4. Fisheries and Oceans Canada, Population Ecology Division, Bedford Institute of Oceanography, Dartmouth, NS, Canada