Ever since rivers have been dammed, destroying the migration routes of salmon, humans have worked to create ways to help the fish return to their spawning grounds. We’ve built ladders and elevators; we’ve carried them by hand and transported them in trucks. Even helicopters have been used to fly fish upstream.
But all of those methods are expensive and none of them are efficient.
Enter the salmon cannon.
The device uses a pressure differential to suck up a fish, send it through a tube at up to 22 mph and then shoot it out the other side, reaching heights of up to 30 feet. This weekend, it will be used to move hatchery fish up a tributary of the Columbia River in Washington.
Read it all and enjoy the video also.
When I saw that headline I was just sure this was a new recruiting tool for Nashotah House. Alas, it has not (yet) been applied to being fishers of men. But it contains some promising concepts for a water theme park.
LOL…
Glad I’m not the only one who thought there was a new Edward Salmon [i]Canon[/i]
An Ed Salmon Canon? I am sure the thought never crossed our host’s mind.