Eel River Pacific Lamprey Barrier Assessment & Limiting Factors Analysis
The National Resource Department's (NRD) first U.S. Fish and Wildlife Tribal Wildlife Grant (TWG) consisted of conducting lamprey barrier assessments on the Eel River and develop a Limiting Factors Analysis.
With the assistance of Stillwater Sciences, the Department has completed the final report titled, Evaluation of Barriers to Pacific Lamprey Migration in the Eel River Basin (PDF). The Department evaluated approximately 60 barriers within the Eel River watershed from Ferndale as far south as Willits. The project involved conducting habitat/ammocoete surveys, evaluating barrier characteristics and dimensions, and measuring longitudinal profiles and tailwater cross sections.