From Digital Camera World · · 50s
Filmmaker captures invasive species in River Thames
Barny Dillarstone films signal crayfish and mitten crabs in London's River Thames using night-vision camera.
In brief
Barny Dillarstone films signal crayfish and mitten crabs in London's River Thames using night-vision camera. Barny Dillarstone discovered invasive signal crayfish and Chinese mitten crabs in the River Thames using a night-vision camera. Originally reported by Digital Camera World.
Barny Dillarstone's underwater camera project

Filmmaker Barny Dillarstone uses night-vision cameras to explore hidden aquatic species in rivers and oceans.
Dropping camera into Thames river

Barny lowered a night-vision camera into London's River Thames using a rope system to capture underwater life.
Signal crayfish discovered
Barny found signal crayfish, an invasive species from North America introduced in the 1960s that outcompetes native species.
Chinese mitten crab found
Barny discovered Chinese mitten crabs that erode riverbanks and outcompete native species in the Thames.
Invasive species impact

Both species threaten the River Thames ecosystem by outcompeting native species and causing riverbank erosion.
What matters most
Barny Dillarstone discovered invasive signal crayfish and Chinese mitten crabs in the River Thames using a night-vision camera.




