Comments: Decline in Sacramento-San Joaquin Delta is attributed primarily to toxic substances and to entrainment of young in water diversion structures (Hassler 1988). Habitat destruction affected populations in Hudson River, Chesapeake Bay, and Albemarle Sound, resulting in drastic declines in mid-20th century (Hill et al. 1989). Excess harvest contributed the decline along the U.S. east coast in the late 1970s and early 1980s; hatchery production and restrictions on the harvest resulted in population increases in the Chesapeake Bay region by the early 1990s (Diamond 1990). Alterations in habitat quality have eliminated native bass populations from most of original range along Gulf of Mexico; but populations increasing due to stocking (Hill et al. 1989).