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Mobile fish farms

Home Forums Archive Infrastructure Mobile fish farms

This topic contains 4 replies, has 4 voices, and was last updated by Profile photo of vincecate vincecate 7 years, 2 months ago.

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  • #689
    Profile photo of vincecate

    With big low rpm propellers they can move a 62 foot diameter fish farm though the ocean at about 1 foot/second with 12.5 hp.


    This is fun because we could use mobile fish farms and because we could use big low RPM propellers to push seasteads.

    Profile photo of Thorizan

    Aquaculture is really catching on. I think that it can give seasteading a really big push into reality. The world stopping hunting, and starting ranching. The world stopped gathering, and started farming. The world will stop fishing, and will start aquaculturing. It’s a natural transition. Seasteads will lead the way.

    Profile photo of

    Very cool. I´m sure you can do dynamic positioning of seasteads like this, and keep it reasonably economical.

    Profile photo of

    It’s not nearly as much mobility as uncaged fish have, but having a moveable fish cage could help find natural sources of food (smaller fish), reduce impact on a given local environment, etc.

    Heck, train the caged fish to swim towards prey and have them move the cage themselves…. Just drop some food outside the cage in the direction you want to move and see what happens….. :) Fish power!

    Profile photo of vincecate

    I think the big propellers are a very important part of making this work. The push you get from a propeller is proportional to the change in momentum the propeller gives some water which is:
    mass * velocity

    for the mass of water pushed out the back at some velocity. The energy put into that water by the propeller is:
    1/2 mass * velocity^2

    So if you are going slow you really want a big propeller that pushes slowly on a lot of water. Using a small fast propeller on a big slow seastead would take far more energy for the same push.

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