1973 - 74 Research Assistant, Department of Zoology, University of the Philippines, Diliman, Quezon City, Philippines 1975 - 76 Instructor, Department of Zoology, University of the Philippines, Los Banos, Laguna, Philippines 1976 - 80 Teaching Assistant, Department of Zoology, University of British Columbia, Vancouver, B.C., Canada V6T 2A9 1981 - 82 Senior Lecturer, University of t he Philippines - Southeast Asian Fisheries Development Center (UP - SEAFDEC) Graduate Program, University of the Philippines, Iloilo, Philippines.1982 - 83 Postdoctoral Research Scholar, Department of Pharmacology, Stanford University School of Medicine, Stanford, California, U.S.A. 1984 - 90 Research Associate, Department of Zoology, University of British Columbia, Vancouver, B.C., Canada V6T 2A9 1990 - present Research Associate (honorary), Department of Zoology, University of British Columbia, Vancouver, B.C., Canada V6T 2A9 1990 - 91 Assistant Professor (Limited - Term), Department of Biological Sciences, Simon Fraser University, Burnaby, B.C. , Canada V5A 1S6 1992 Lecturer, Department of Zoology, University of British Columbia, Vancouver, B.C., Canada V6T 1Z41993 - 94 Assistant Professor (Tenure - Track), Department of Biological Sciences, Florida International University, University Park, Miami, Florida 33199, U.S.A. 1994 - 98 Assistant Professor, Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, CA 93106 - 9610, U.S.A 1998 - 2006 Associate Professor, Department of Ecology, Evolution, & Marine Biology, Universi ty of California, Santa Barbara, CA 93106 - 9610, U.S.A 2006 - present Professor, Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, CA 93106 - 9610, U.S.A