Aquatic Monitoring for Climate Change
Resources is collaborating with Refuges in Region 1 on a pilot project to
design and implement a long-term aquatic monitoring program as an effective
approach to evaluate impacts of climate change supportive of the Service’s Strategic
Plan for Responding to Accelerating Climate Change.
Stream discharge & temperature
stage, and air and water temperature will be continuously recorded (15 and 30
minute intervals basis) with loggers according to EPA recommendations. Stream discharge will
be estimated using stage-discharge relationships.
dissolved oxygen, pH, and water temperature will be recorded from point
measurements made with hand-held meters during each survey
habitat attributes (e.g., thalweg profile, substrate, channel and riparian
characteristics) will be recorded relative to transects during each survey.
backpack electrofishing will be conducted throughout stream reaches to collect
fish, amphibians, and aquatic reptiles during each survey. (If encountered, crayfish will be preserved
for identification in the lab to assess possible presence of invasive
species.) Because aquatic communities
reflect the integration of prevailing
physical and biotic conditions through time, indices derived from various assemblage
attributes (e.g., species richness, species relative abundance, species
origin—native versus introduced, ecological and physiological traits of select
taxa) will be calculated to characterize condition of the aquatic vertebrate
Page Photo Credits Staff gauge in Muddy Creek at WL Finley NWR. © Sam Lohr, USFWS, Temperature logger in Bridge Creek at Malheur NWR. © Sam Lohr, USFWS, Measuring stream discharge, Myrtle Creek Kootenai NWR. © Sam Lohr, USFWS
Last Updated: Aug 11, 2015