Peter S. Vroom is a principal investigator for the Coral Reef Ecosystems Division's algal laboratory. His current research interests include community ecology of tropical algal populations, multidisciplinary integrated ecosystem correlations and algal taxonomy. Address: Coral Reef Ecosystem Division, NOAA Fisheries' Pacific Island Fisheries Science Center, 1125 B Ala Moana Boulevard, Honolulu, Hawaii 96814. Internet: pvroom@mail.nmfs.hawaii.edu