[EMAIL PROTECTED] wrote:
Many coral reefs are in trouble. Many are bleaching and then
disintegrating. Fish hatchery like protected growth pool would have
reliably healthy living coral reefs
Maybe -- but IIRC the bleaching was finally tracked down to higher sea
temperatures (after a couple decades of suspecting ozone layer damage,
mysterious microorganisms, alien attacks, whatever...). The corals
which bleach are adapted to a very narrow temperature range; cold water
corals, for instance, are unaffected.
Given this, it's hard to see how protected growth pools could be immune
to the bleaching. Protected pools would tend to be shallow and have
somewhat restricted inflow and outflow, which would contribute to
warming the pools even more than the open ocean.
and attendant sea creatures that
would supply a surplus of larva to be deflected to seacrete production
which I guess electrically forces the larva to deposit in a dense
nonliving form. The production rate will depend on the biological
activity which needs to be reconciled to the market. The enterprise
could use small outposts to cooperate with a variety of natural reefs
and undersea towers where stacks of chambers for various rebar armatures
gather secrete deposits to form seacrete products. The chambers would be
supplied with artificial light and electricity produced by Ambient Heat
Recovery means where the net absorption of ambient heat equals the
chemical energy put into the product because intermediate energy
misrouted within the biomanufacturing process is recycled. Material
would be moved in 3D by submersible robots or waldos. Extensive seacrete
biomanufacturing would not displace natural coral reefs. The chambers
can be set to different temperatures as needed. A large volume of
circulating seawater would produce a large amount of net energy with a
small temperature drop. Manganese nodule growing and algae based
biomanufacturing could be similar.
Aloha,
Charlie
