Figure 2. Rapid rise and fall of San Jorge Island fishery stocks from summer 2002, when the Puerto Peñasco community-based reserve network was established, to the end of summer 2004, three months after roving bandits poached on the island.

The graph depicts differences in relative densities (S.E. bars included) from one monitoring season to another for the main species harvested: murex snails (Hexaplex nigritus) and rock scallops (Spondylus calcifer).