Research and analysis

Flow protection criteria for adult salmon: phase 3 case studies

This report describes case studies testing the model previously described in Science Report SC010016/SR and explores how the methodology may be implemented.

Documents

Flow protection criteria for adult salmon - phase 3 case studies

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Flow protection criteria for adult salmon - phase 3 case studies

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (eg a screen reader) and need a version of this document in a more accessible format, please email enquiries@environment-agency.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Detail

This report used data from telemetry studies and fish counters to develop a statistical model to assess the potential impact of abstractions and water resource schemes on adult salmon entering freshwater.

The model quantifies the impact in terms of delay and mortality at tidal limit as well as the level of uncertainty. The results from the model simulations could be used in the decision making process to evaluate the impact of an altered flow regime on the number of salmon available to the fishery and for spawning.