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Chalk Stream Salmon Vanishing
5 May
Summary
- Chalk stream salmon face extinction due to pollution and habitat loss.
- Only 133 adult salmon returned to spawn in 2022, a record low.
- A chalk artwork in Winchester symbolized the fish's potential disappearance.

Chalk stream salmon, a symbol of healthy river systems, are critically endangered in Hampshire's chalk streams. These unique fish face dire threats from rising water temperatures, habitat degradation, and pollution from sewage and agriculture. As of 2022, the number of adult salmon returning to spawn reached an all-time low of just 133, a stark indicator of their precarious state.
A temporary chalk artwork was created in Winchester by street artist Julian Beever to visually represent the potential disappearance of this iconic species. This campaign, fronted by Project White Hart and actor Jim Murray, emphasizes that the plight of chalk stream salmon is often overlooked despite their national significance.
The government has committed to restoring chalk streams, recognizing their value as a source of national pride. Reforms to the water sector aim to improve ecological health and protect endangered species. The Environment Agency is actively engaged in habitat restoration and improved fisheries management to support the long-term recovery of salmon populations and their fragile chalk stream habitats.