a-new-tool-helps-water-managers-consider-ecosystem-needs-dfdc0d46f582f260.pdf

The Stockholm Environment Institute has developed a tool based on the Water Evaluation And Planning (WEAP) system that allows water managers to model the impact of various management options on aquatic habitat and species viability. By analyzing daily hydraulic, substrate, and temperature conditions, the tool helps balance human water needs (urban, industrial, agricultural) with ecosystem health. It has been applied in California's Santa Clara Valley Water District and the South Fork Eel River to manage salmon habitats and evaluate the impact of policies, including cannabis cultivation and groundwater management laws.

• The Stockholm Environment Institute (SEI) has developed a habitat assessment tool using the Water Evaluation And Planning (WEAP) system to help water managers integrate ecosystem needs into water management. The tool models the effects of management options on habitat availability and the viability of aquatic species by integrating hydroecological processes within a water operations model.
• The latest version of the tool performs complete aquatic habitat assessments at creek reaches and ecologically relevant points. It models daily temperature, substrate, and hydraulic conditions, comparing them against ideal conditions for aquatic species to determine how real-world conditions impact different life stages of species.
• The tool has been applied in California to balance water supply for humans, industry, and agriculture with the needs of fish species. In the Santa Clara Valley Water District, it was used to evaluate regulations and operating regimes to improve habitat for chinook and steelhead salmon and meet California Environmental Quality Act requirements. In the South Fork Eel River, the model is being used to illustrate the impacts of cannabis policies, curtailment procedures, and instream flow requirements on water users and the habitat of steelhead, Chinook salmon, and Coho salmon.
• The tool is designed to support policy-makers in meeting sustainability goals, such as those in the Sustainable Groundwater Management Act, and can be used in restoration projects, like those in the Mid Klamath Watershed, to prioritize actions for threatened aquatic species and wild salmon.

APA

Stockholm Environment Institute (n.d.). a-new-tool-helps-water-managers-consider-ecosystem-needs-dfdc0d46f582f260.pdf. https://www.sei.org/wp-content/uploads/2019/05/a-new-tool-helps-water-managers-consider-ecosystem-needs.pdf

Chicago

Stockholm Environment Institute. a-new-tool-helps-water-managers-consider-ecosystem-needs-dfdc0d46f582f260.pdf. n.d. https://www.sei.org/wp-content/uploads/2019/05/a-new-tool-helps-water-managers-consider-ecosystem-needs.pdf.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=a-new-tool-helps-water-managers-consider-ecosystem-needs-dfdc0d46f582f260.pdf |url=https://www.sei.org/wp-content/uploads/2019/05/a-new-tool-helps-water-managers-consider-ecosystem-needs.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitutendanewtoolhelpswatermanagersconsiderecosystemneedsdfdc0d46f582f260pdf, author = {{Stockholm Environment Institute}}, title = {{a-new-tool-helps-water-managers-consider-ecosystem-needs-dfdc0d46f582f260.pdf}}, institution = {Stockholm Environment Institute}, url = {https://www.sei.org/wp-content/uploads/2019/05/a-new-tool-helps-water-managers-consider-ecosystem-needs.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }