Kent Wildlife Trust says chalk streams should be designated "irreplaceable" under planning rules.

More than 100 campaigners have marched alongside a rare chalk stream, calling for action to protect it from pollution. The Old Basing and Lychpit Environmental Campaign highlighted Thames Water's ...

A campaign by a coalition of organisations aims to stem the decline in chalk stream salmon numbers.

The River Wandle emerges from its chalky springs in Carshalton Ponds, south-east London Environmental campaigners are calling for greater protection for chalk streams. The streams are one of the world ...

Native species like brown trout and water voles are able to return to a rare chalk stream in Hertfordshire after a major ...

The world has fewer than 300 chalk streams — and England has most of them. These streams occur only where chalk bedrock meets the Earth’s surface, making them globally rare. Their stable, cool, ...

Chalk-stream salmon should be officially classified as a sub-species, new research suggests. Scientists from the University of Exeter and INRAe (France) carried out detailed genetic testing of salmon ...

Salmon from the chalk streams of southern England are genetically unique, researchers have discovered. The fish are classified as Atlantic salmon (Salmo salar), but research by the University of ...

A project which aims to protect and restore England’s rarest water habitats has celebrated its 20th anniversary.