Testing Ecological Tradeoffs of a New Tool for Removing Fine Sediment in a Spring-fed Stream

摘要: Excessive fine sediment is a focus of stream restoration work because it can impair the structure and function streams, but few methods exist for removing in spring-fed streams. We tested novel method removal with potential to have minimal adverse effects on biological community during process. The Sand Wand system, dredgeless vacuum developed by Streamside Technologies, was used experimentally remove from Kackley Springs, spring creek southeastern Idaho. assessed physical habitat macroinvertebrate composition up 60 days after treatment. documented changes multiple variables, including depth, median particle size, frequency embedded substrate reaches that were treated Wand. also found altered even though common metrics changed little Our results suggest effective at sediments Springs did harm function, not ultimately improving desired conditions. Additional techniques are still needed decrease amount sediment.