Abalone populations have declined dramatically in southern California. The white abalone ( Haliotis sorenseni ) is now ( 2001) on the federal endangered species list. To aid in the restoration of white, pink ( H. corrugata ), and green abalone ( H. fulgens ), productive marine protected areas need to be selected. We used spatially explicit fishery data (1950–1995) to identify the most productive marine areas in southern Califo...