Environment & Climate Community & Social Justice
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Freshwater Biological Association (FBA)

Impact Report 2024-25

The Freshwater Biological Association (FBA) is an independent scientific charity founded in 1929, dedicated to inspiring action to protect freshwater ecosystems through science. In 2024/25 the charity reared 50,000+ freshwater pearl mussels, co-ordinated over 10,000 Riverfly citizen science survey records across 820 rivers, and published the Big Windermere Survey report to an audience of 35–45 million. It launched the Lakefly programme, convened the first Arctic Charr Symposium and held its first Annual Scientific Meeting in several years.

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About

Freshwater pearl mussel and Arctic charr species recovery; Riverfly Partnership citizen science network; Big Windermere Survey; Lakefly citizen science project; freshwater training courses; FBA Annual Scientific Meeting; advocacy and InfoNotes publications

Key Metrics

Key Metric 1 50,000+ freshwater pearl mussels reared and 5,100 juveniles released into 3 Cumbrian rivers in 2024/25
Key Metric 2 10,443 Riverfly survey records uploaded in 2025 — the first time the initiative has broken 10,000; 1,905 sites monitored across 820 rivers and 240 catchments
Key Metric 3 Big Windermere Survey 2-year report reached an estimated 35–45 million audience through national and international media coverage

Key Outcomes

  • First LD-CHARM Arctic Charr Symposium convened in Newcastle; £200,000 research funding secured for Lake District charr conservation
  • 43 volunteers trained through Lakefly pilot at 3 Lake District waterbodies; monitoring extended to 14 lakes across the UK
  • 100+ attendees at Annual Scientific Meeting at Nottingham Trent University; Early Career Member Network launched for first time

Geography

UK-Wide

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