Investigating impacts of small dams and dam removal on dissolved oxygen in streams.

ABSTRACT: Small surface-release dams are prevalent across North American watersheds and can alter stream flow, thermal regimes, nutrient dynamics, and sediment transport. These dams are often implicated as a cause of negative water quality impacts-including reduced dissolved oxygen (DO)-and dam removal is increasingly employed to restore natural stream processes and improve DO. Published impacts of small dams on DO vary widely across sites, and even less is known about the extent and timescale of DO recovery following removal. Therefore, we sought to quantify the effects of small dams and dam removal on DO and determine the dam, stream, and watershed characteristics driving inter-site variation in responses. We deployed continuous data loggers for 3 weeks during summer months in upstream (reference)

SUBMITTER: Abbott KM 

PROVIDER: S-EPMC9671431 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature