On Wed, 16 Aug 2000, James A Mackie wrote:
> Big pens are the dream of accountants. ON paper the figures look good.
> Practicallity is the draw back. Big cages have been tried before in
> different designs and locations. The designers want to try changing a net
> with 400 tons plus of fish in them or doing a sea lice treatment. As for
> closed containers, thre safest method is pump ashore.
Sounds like aquariums/ponds along the shoreline would be best.
During a sea lice
> treatment I saw a gale lift 50 tonnes of fish and 180 tonnes of water when
> it got under a tarpaulin. A close container at sea will carry more risks
> of this than a simple net.
Closed containers along the shoreline would be expensive to build and
costly to operate because of the pumping and aeration. Other costs? So it
gets down to whether there is any profit in it after all that. Any data
for operations like this yet?
FWP
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