; (4) at least 40 percent of all threatened species and endangered species in the United States are directly dependent on fish habitats; (5) certain fish species are considered to be ecological indicators of fish habitat quality, such that the presence of those species reflects high-quality habitat for fish species; (6) loss and degradation of fish habitat, riparian habitat, water quality, and water volume caused by activities such as alteration of watercourses, stream blockages, water withdrawals and diversions, erosion, pollution, sedimentation, and destruction or modification of wetlands have— (A) caused significant declines in fish populations throughout the United States, especially declines in native fish populations; and (B) resulted in economic losses to the United States; (7) (A) providing for the conservation and sustainability of fish populations has not been fully realized, despite federally funded fish and wildlife restoration programs and other activities intended to conserve fish habitat; and (B) conservation and sustainability may be significantly advanced through a renewed commitment and sustained, cooperative efforts that are complementary to existing fish and wildlife restoration programs and clean water programs; (8) the National Fish Habitat Action Plan provides a framework for maintaining and restoring fish habitats to perpetuate populations of fish species; (9) the United States can achieve significant progress toward providing fish habitats for the conservation and restoration of fish species through a voluntary, nonregulatory incentive program that is based on technical and financial assistance provided by the Federal Government; (10) the creation of partnerships between local citizens, Indian tribes, Alaska Native organizations, corporations, nongovernmental organizations, and Federal, State, and tribal agencies is critical to the success of activities to restore fish habitats