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Hyporheic Microbes Database - Microbes in the hyporheic zone

Published by Northwest Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 20, 2025 | Last Modified: 2025-05-15T19:16:15.000+00:00
The hyporheic zone (i.e., where surface & groundwater converge) is a geomorphic feature that contributes to the overall health of streams & rivers. Much of the function of the hyporheic zone depends on microbes, that modify & recycle nutrients & other biological molecules. How the hyporheic zone is altered in stream restorations is understudied. This project attempts to document changes microbial activity & community structure in restored reaches of an urban stream, Thornton Creek in Seattle, including attempts to "seed" or accelerate population of newly installed hyporheic elements by transplanting hyporheic material from a pristine system, the Cedar River watershed. Assessment of the microbial component is being performed in concert with assessments of macroinvertebrate communities & water quality measures. Filemaker Pro database of results from field & lab effort.

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