Tracking the pulse of the Earth’s fresh waters

To detect floods and protect fish and other stream critters, warning systems are needed that track river flow. But while these stream gage monitoring systems have been restored to historical levels in the U.S., they are declining globally. A new study highlights trends in stream gage numbers, and pinpoints areas in the U.S. that need additional monitoring because of a combination of floods, droughts, and risk to biodiversity. The paper by Albert Ruhi (SESYNC), SAFS MS student Matthis Messager, and SAFS professor Julian Olden, appears in Nature Sustainability.

Areas with high numbers of fish species and with a high risk of low numbers of stream gages.
Decline in the number of stream gages worldwide that report to an open access database.
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