The Ecology of Rainbow Trout in Stalker and Grove Creeks  by J.S. Griffith 1979

Proposal to study the following hypothesis – 1. the removal f instream sediment leads to a shift in macrophytes, most likely from Potamogeton and/or Chara to Veronica and/or watercress; 2. as opposed to Potamogeton and Chara, Veronica and watercress provide a greater biomass of aquatic invertebrates, more of those invertebrate taxa that are selected by rainbow trout, and better cover for the trout; 3. a lack of cover limits the year-round use of Silver Creek by adult rainbow trout; 4. trout are being blocked from upstream migration by the Purdy Dam.