Aquaponics Digest - Fri 02/05/99
Message 1: Attitude of a geneticist (for your amusement)
from John Shannonhouse
Message 2: Re: More Methane Stuff for the Curious
from jilli and lars
Message 3: Re: Fresh Water Crays in Aquaponics
from jilli and lars
Message 4: Re: More Methane Stuff for the Curious
from doelle
Message 5: Re: Biogas Series
from Michael Strates
Message 6: Re: Fresh Water Crays in Aquaponics
from Gordon Watkins
Message 7: Re: Fresh Water Crays in Aquaponics
from Michael Strates
Message 8: Re: Biogas Series
from PDOSSJR
Message 9: Re: Fresh Water Crays in Aquaponics
from Vivienne Hallman
Message 10: Re: Biogas Series
from "Lloyd R. Prentice"
Message 11: Re: More Methane Stuff for the Curious
from Wayne Straughan
Message 12: Re: More Methane Stuff for the Curious
from Dave Miller
Message 13: UNSUBSCRIBE
from CarlaNH
Message 14: Re: Fresh Water Crays in Aquaponics
from "Mel Riser"
Message 15: Re: worms
from "Susanne Machler"
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| Message 1 |
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Subject: Attitude of a geneticist (for your amusement)
From: John Shannonhouse
Date: Fri, 5 Feb 1999 09:30:24 -0600
Hello,
When I came into work this morning, a news crew from a local
station was interviewing my boss (the head of the Genetics Department here
at UW). The reporter was talking to my boss and said that he was talking to
the head of Ag Economics who compared the significance genetically altered
crops to the [drum fill] industrial revolution. I thought "what a load of
crap" and supressed my urge to giggle. When I talked to Mike (my boss)
about it later and said that the comparison seemed histrionic to me, he
said "Let them believe that. Maybe we can get more funding that way."
The most successful deceptions are based on being passive about
ignorance. Geneticists don't have to do anything to seem important. We can
just let the ag people, the medical people, the journalists and others do
the exadurating for us. I guess if someone called me one of the most
important people in the world, I wouldn't tell him that he is mistaken,
either...
BTW, I hear that aquaponics will change the world. It will be the
most important invention since the plow...
John Shannonhouse
Department of Genetics
University of Wisconsin-Madison
jlshanno@students.wisc.edu
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Subject: Re: More Methane Stuff for the Curious
From: jilli and lars
Date: Fri, 05 Feb 1999 11:21:25 -0800
michael -
can you please send me a copy of the biogas series?
thanks
lars
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Subject: Re: Fresh Water Crays in Aquaponics
From: jilli and lars
Date: Fri, 05 Feb 1999 11:24:17 -0800
Michael Strates wrote:
> Hi!
>
> Since I feed them meat, I assume that the water will contain some
> important nutrients which my existing aquaponics system might enjoy.. My
> question is, can I connect this to my "aquaponics loop"?
>
> --
Why not? Is there something about the water that makes you think this might
not be a good idea?
lar
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Subject: Re: More Methane Stuff for the Curious
From: doelle
Date: Sat, 06 Feb 1999 07:35:21 +1100
I would also appreciate a copy. Thanks Michael.
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Subject: Re: Biogas Series
From: Michael Strates
Date: Sat, 6 Feb 1999 18:32:34 +1100 (EST)
On Fri, 5 Feb 1999, jilli and lars wrote:
jal> can you please send me a copy of the biogas series?
Okay.. It'll arrive in your box in a minute.
btw; a quick note to all - I've found the pop bottle digester plans which
I told people that I couldn't find, so if anybody requested it and I
didn't reply with it, please resend your request, and hopefully I'll be
able to send it to you now.
--
e-mail: mstrates@croftj.net www: http://www.croftj.net/~mstrates
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Subject: Re: Fresh Water Crays in Aquaponics
From: Gordon Watkins
Date: Fri, 05 Feb 1999 14:29:17 -0600
Some studies indicate that Red Claw crayfish might suppress the growth of
tilapia in polyculture systems. Don't know about Yabbies.
Gordon
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Subject: Re: Fresh Water Crays in Aquaponics
From: Michael Strates
Date: Sat, 6 Feb 1999 18:38:09 +1100 (EST)
On Fri, 5 Feb 1999, jilli and lars wrote:
jal> Why not? Is there something about the water that makes you think this might
jal> not be a good idea?
No, I just remember somebody advising someone else against it because of
the high-protein meat feeds that I/they feed them. I feed my little
crayfish (they're called yabbies in Australia and are about the same size
as prawns which you buy from the supermarket) steak, liver, worms and
sometimes properly brought feed.
I was wondering - does anybody Australian on this list know if you can
feed these yabbies anything other than meats. Do they eat plant material?
Michael,
Proud to be living in a country where free speech is permitted and
encouraged :)
--
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Subject: Re: Biogas Series
From: PDOSSJR
Date: Fri, 5 Feb 1999 18:32:52 EST
Michael,
I would like a copy of both if possible.
Paul Doss
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| Message 9 |
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Subject: Re: Fresh Water Crays in Aquaponics
From: Vivienne Hallman
Date: Sat, 06 Feb 1999 10:16:32 +1000
Michael
Crayfish or yabbies do not need meat as a protein source in their diet.
They are in
fact detrital feeders, i.e. they eat decaying vegetable matter and a wide
variety of
vegetables. The vegetables are best if cooked first, detrital
microorganisms can
then invade them quicker. Yabbies and crays only need about 15% protein in
their
diet and they can get this quite satisfactorally from the detrital
microorganisms
and zooplankton growing on the rotting vegetable matter.
Some commercial yabbie growers in Victoria have a system where after
draining the
ponds for harvesting, the ponds are left for a while to dry out a bit and
then the
base of the pond is planted with a cereal grass such as rye which does not
mind wet
soil. When the grass is about 200mm high the pond is flooded and the grass
starts
to break down. When the breakdown is progressing the yabbies are then
introduced and
the decaying grass provides sufficient food for their growout period.
Perhaps you
can adjust this idea for your system.
Lets know how you get on
Vivienne
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Subject: Re: Biogas Series
From: "Lloyd R. Prentice"
Date: Fri, 05 Feb 1999 20:43:26 -0500
Michael Strates wrote:
>
> On Fri, 5 Feb 1999, jilli and lars wrote:
>
> jal> can you please send me a copy of the biogas series?
>
> Okay.. It'll arrive in your box in a minute.
>
> btw; a quick note to all - I've found the pop bottle digester plans which
> I told people that I couldn't find, so if anybody requested it and I
> didn't reply with it, please resend your request, and hopefully I'll be
> able to send it to you now.
I'd much appreciate the pop-bottle digester plans. And, many thanks for
sending the other biogas materials. Very interestings.
Best wishes,
Lloyd R. Prentice
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Subject: Re: More Methane Stuff for the Curious
From: Wayne Straughan
Date: Fri, 5 Feb 1999 17:48:47 -0800 (PST)
Could you please send me a copy aswell-thanks
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Subject: Re: More Methane Stuff for the Curious
From: Dave Miller
Date: Fri, 05 Feb 1999 21:00:45 -0500
Sign me up for the mailing
--
Dave
_______________________________________
«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»§«¤»¥«¤»§«¤»
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
A "green" home remodeler
A father of 2 cockatiels
An organic farmer
A veggie drummer/keyboardist
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Subject: Re: Fresh Water Crays in Aquaponics
From: "Mel Riser"
Date: Fri, 5 Feb 1999 21:17:38 -0600
Hey Michael
Send that biogas article to me as well
Thanks
Mel Riser
mriser@infostream.net
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Subject: Re: worms
From: "Susanne Machler"
Date: Fri, 05 Feb 1999 21:38:17 PST
Hi everyone,
check out the site at www.redclaw.com for more info on lobsters favorite
chow......
chow for now
Sue
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/
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