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 ...

Surveying shows one of England’s important chalk streams has suffered “a decade of decline”, campaigners warn as they call for more action to protect the globally rare habitat. Monitoring at five ...

Environmental campaigners are calling for greater protection for chalk streams. The streams are one of the world's rarest freshwater habitats and the vast majority are found in England. The London ...

Chalk streams flowing through Wiltshire have "suffered “a decade of decline”, campaigners have warned. Monitoring at five sites on the River Avon, which flows through Wiltshire and Hampshire, has ...

A large chalk drawing of a salmon has been created on a city centre street to raise awareness of the plight of the fish's habitat. Street artist Julian Beever said he created the work, drawn with a ...