August 12 2014 โ The cannon โ which can also be employed in fish production โ potentially solves the problem of blocked migrations, which can have a dramatic impact on an ecosystem.
In the pre-industrial past salmon used to swim happily upriver to their spawning grounds, unhindered by nothing more than a few grizzly bears and an occasionally voracious beaver.
Now, in this age of hyproelectric dams and environmental damage, it can be trickier.
Well thanks to Whooshh Innovations, their struggles may be over. Whooshh has come up with a literal fish cannon, which enables salmon to swim into a tube and be shot more than 500 feet into the air, before landing safely in the water upstream.
Read the full story at The Huffington Post UK