EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021

(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)

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6/06/2017 | 2:00 PM - 2:15 PM | REGINAL MONITORING NETWORKS: EXPLORING NATURAL VARIABILITY IN BIOLOGICAL, THERMAL AND HYDROLOGIC DATA AT FRESHWATER WADEABLE STREAMS SITES | 302C

REGINAL MONITORING NETWORKS: EXPLORING NATURAL VARIABILITY IN BIOLOGICAL, THERMAL AND HYDROLOGIC DATA AT FRESHWATER WADEABLE STREAMS SITES

States, tribes and other entities in the eastern and midwestern US have been working with EPA to collect biological and year-round thermal and hydrologic data at Regional Monitoring Networks (RMNs) sites in freshwater wadeable streams. Building on existing state and tribal bioassessment efforts, RMN surveys have the goal of collecting regionally comparable data on an annual basis at a limited number of sites from a pre-defined class that can be pooled. We present results from preliminary analyses on data that have been collected from a subset of RMN sites representing high quality, medium to high gradient, wadeable streams in the eastern US. First we characterize natural temporal patterns and episodic events in the thermal and hydrologic data. Then we examine natural variability in the biological data and explore associations between these data and variations in the thermal and hydrologic conditions. An understanding of natural temporal and spatial variation in aquatic systems is important because it enables monitoring programs to separate natural variation from human-induced changes.

C17 Bioassessment
S24 Towards a predictive freshwater ecology: using time-series data to understand and forecast responses to a changing environment
C17 Bioassessment

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Presenters/Authors

Britta Bierwagen (), US EPA, bierwagen.britta@epa.gov;