This project will examine the effect of invasive round gobies on stream primary production and leaf litter decomposition by combining field measurements of periphyton standing stock and leaf litter breakdown rates at locations with and without round gobies present. It will also use replicate experimental streams to test the impact of fish communities (either round gobies only, darters only, both, or none) on the same stream processes as the field study (i.e., periphyton production and leaf litter decomposition). (2010)
