Antifouling paint study panels - after six months submerged in coastal waters. Credit: Ann Larsson/University of Gothenburg

An independent study on seven types of leisure boat antifouling paint has found that biocide-free silicone paint worked best, and a paint marketed as environmentally friendly was ‘extremely toxic’.

Excessively low water levels have left hundreds of boats stranded, including Adam McKinstry’s 45ft Oakwood at Gargrave since May – however the photo shows a silver lining, Adam has been able to 'do a bit of blacking on the bottom of the boat.'

Boats have been left stranded in canals, navigation restricted, and businesses “exceptionally quiet” during peak summer months across the inland waterways of England and Wales.