Executive Committee Member, International institute of Fisheries Economics and Trade
Chair of the selection committee for Best Student Paper Award of the 2009 North American Association of Fisheries Economists Forum
Member Scientific Committee of the 2008 International Institute of Fisheries Economics and Trade (IIFET), July 2008, Vietnam.
Member MMAS Advisory Committee: NOAA/Conservation International Economic Incentives Research Programme
Member Scientific Committee of the 2007 North American Association of Fisheries Economists (NAAFE), March 2007, Merida, Mexico.
Member Scientific and Organizing Committee for the 6th Meeting On Game Theory and Practice Dedicated To Development, Natural Resources And The Environment, Zaragoza, Spain
Member of the Scientific Committee for the year 2000 International Institute for Fisheries Economics and Trade (IIFET) Conference, Corvallis, Oregon, USA.
Leader of the Scientific Committee for Oceanic Research (SCOR) team on closed areas: Team reviewed and extended the current state-of-the-art literature on the use of marine protected areas to mitigate the ecosystem effects of fishing. The work of the group was presented at a conference in Montpellier, France, March, 1999.