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Find a Tender · 105726-2026

ES RDE 119 - Fishery independent monitoring for salmon stock assessment

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Montant estimé
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Date limite
Date limite non publiée
Publié
6 nov. 2026
Acheteur
ENVIRONMENT AGENCY
Pays
Royaume-Uni
Source
Find a Tender
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Description

Environment Agency Self-Service Direct Award.
Ministerial Direction instructs the Environment Agency to assess the status of salmon
stocks in English rivers annually. This is currently assessed by comparing estimates of
annual egg deposition to conservation targets, based on the number of eggs that need to
be deposited over time to support sustainable populations. Annual egg deposition is
primarily estimated using angler catch data, informed by some fishery independent data
collected to parameterise the model. However, as salmon populations decline nationwide,
angler catch records are increasingly failing to provide sufficient data to run meaningful
stock assessments, particularly on small rivers. Angler catch records are expected to
reduce still further as our climate warms; catch-and-release salmon fisheries close in high
water temperatures to mitigate risks to fish. Temperature related fishery closures are
pro

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Coordonnées professionnelles publiques

procurement@defra.gov.uk

defra-family.force.com

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