Fish Gun: Salmon shooting coming to a dam near you

fishgunYou’ll believe a salmon can fly…

It sounds like something from a Monty Python skit or maybe even from a Sunday night Fox cartoon: launching salmon across a room.  It’s not.  It’s a business.

From  Adventure Journal:

Many Pacific Northwest dams, both large and small, lack fish ladders – effectively closing off hundreds of miles of habitat to endangered salmon and steelhead runs.

Now, biologists in central Washington are testing a new technology they hope could eventually transport salmonids to currently unreachable rivers: vacuum-pressurized tubes.

The tubes can fling fish a hundred feet in just a few seconds, but before whisking live fish over a dam, scientists must first try to send them safely across a room.

In early June, Yakama Nation Fisheries staff hand-fed about 90 wild spring chinook destined for broodstock into a vacuum tube. The pressure difference inside the flexible tube pulled the fish along, moving them from the collection area to a tanker truck waiting outside, which then transported them to the hatchery. The tube is less stressful for fish than moving them by hand, because it minimizes human contact and returns them to water faster.

You can read the whole article HERE.

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