The PNAMP Fish Monitoring Work Group (FMWG), meets quarterly to update participants on current FMWG tasks, share expertise through presentations on innovative fish monitoring, and provides you with opportunities to engage regional managers and experts. These meetings are an opportune time to discuss tasks and get input from members on where they see importance or could use facilitated support. The FMWG is also interested in your work; if you would like to present your innovative fish monitoring ideas or any recent publications at a future meeting please contact Meg Dethloff, mdethloff@usgs.gov

Tech Talk: WATCH RECORDING

A New Approach to Spatially Characterize Water Temperature in Wadable Streams

Andy Tranmer, a research Professor for the Center for Ecohydraulics Research, Department of Civil and Environmental Engineering, at University of Idaho will present on a new method for gathering temperature data. Water temperature is a primary driver of biological processes and metabolic rates that exhibits high spatial variation in aquatic systems. However, accurately measuring water temperatures and characterizing its associated variability in the field is an ongoing challenge that constrains our understanding of seasonal timing of processes, chemical reaction rates, and habitat availability. Here we present a new, simple method of measuring spatially distributed water temperatures and depths in wadable streams by combing low-cost sensors and RTK GPS units. We also demonstrate its application for capturing temperature heterogeneity and identifying thermal refuge in a recently restored gravel-bed reach of the Grande Ronde River in Oregon. The field data were used to evaluate which restored morphologic features (alcoves, side channels, riffles, pools, and plane beds) aid in maintaining appropriate thermal habitat conditions.

Agenda

• 10:00 – Welcome and Introductions
• 10:05 – Task Updates
• 10:20 – Tech Talk
• 11:10 – Q&A
• 11:30 – Adjourn

Missed a previous FMWG meeting? Check out our YouTube page for presentations or task meetings.