FIG. 46.9 Age structure in Pacific rockfish populations in fished and unfished waters. Harvesting larger and older individuals reduces the population’s capacity for growth, jeopardizing commercial stocks. Source: Data from S. A. Berkeley, M. A. Hixon, R. J. Larson, and M. S. Love, 2004, “Fisheries Sustainability via Protection of Age Structure and Spatial Distribution of Fish Populations,” Fisheries 29(8): 23–