The salmon cannon is a "flexible conduit" that transports fish quickly and safely over obstacles, including dams. The cannon doesn't actually shoot fish out of one end, but deposits them gently into the water after propelling them through its tube. The system was initially developed to transport fruit without bruising it.
The Salmon Cannon Carries Fish Over Dams
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Key Facts In This Video
The salmon cannon moves fish through its flexible tube by creating a localized pressure differential. 00:06
The pressure inside the salmon cannon feels similar to that of shallow water, and prompts fish to "swim" inside the tube. 00:36
The salmon cannon allows for the safe removal of fish from hatcheries. 01:10
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