Ben's research aims to describe benthic macroinvertebrate (BMI) communities in perennially and seasonally inundated habitats on the Trinity River under varying inundation periods. In addition, Ben will describe benthic community composition shift after a winter streambed scouring event, should one occur. The hydrologic regime can play a large role in benthic community dynamics. Historically, high flows on the Trinity occurred in the late winter/ early spring. Today, flows on the Trinity River are regulated by the Lewiston Dam and as a result, there is little flow variability in the winter/spring months and high flows occur in the summer when water is released. The results of this research may help guide a better tailored flow regime to support juvenile salmonids which feed heavily on BMI’s.