sentences:  Stream restoration focuses on improving habitat for trout and other coldwater species, including aquatic insects.Tactics can include planting trees and shrubs along streams to reduce erosion while also increasing shade, strategic addition of boulders or trees to provide cover and improve water depth and flow, and removing or improving barriers that block fish passage, such as culverts and dams.TU members tallied more than 734,000 volunteer hours in 2017.