1. Maritime Studies Program, Williams College—Mystic Seaport, P.O. Box 6000, 75 Greenmanville Avenue, Mystic, Connecticut 06355;
2. Moss Landing Marine Laboratories, P.O. Box 450, Moss Landing, California 95039;
3. Department of Zoology, University of Maryland, College Park, Maryland 20742;
4. Marine Conservation Biology Institute, 15806 NE 47th Court, Redmond, Washington 98052;