1National Marine Fisheries Service, James J. Howard Marine Sciences Laboratory, 74 Magruder Road, Highlands, NJ 07732, USA
2National Marine Fisheries Service, Milford Laboratory, 212 Rogers Avenue, Milford, CT 06460, USA
3Marine Field Station, Institute of Marine and Coastal Sciences, Rutgers University, 800 Great Bay Boulevard, c/o 132 Great Bay Boulevard, Tuckerton, NJ 08087-2004, USA