Aquaponics Digest - Tue 03/07/00
Message 1: Re: Damn!!
from "Steve"
Message 2: Re: Damn!!
from "Hairo Jairo"
Message 3: mineralization...
from laberge@cil.qc.ca (LABERGE MARC)
Message 4: Addendum - Fwd. Organic Seafood-USA
from S & S Aqua Farm
Message 5: Fwd - Notice - Organic Aquaculture Standards Workshop (US)
from S & S Aqua Farm
Message 6: Fwd - Modeling
from S & S Aqua Farm
Message 7: Re: mineralization...
from "TGTX"
Message 8: Re: Experimental lighting questions
from "Sam Levy"
Message 9: Re: Experimental lighting questions
from "Sam Levy"
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| Message 1 |
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Subject: Re: Damn!!
From: "Steve"
Date: Tue, 7 Mar 2000 01:54:51 -0600
Hi Hairo,
Sorry that it took a while for me to get back to you. With respect to Paula,
I will not send the message that I originally was going to send. (Old age
does that to you...makes you think first...something that you obviously have
not learned.)
I was really going to blast you. I understand that you have not even started
yet...wait until you have your first major "fish kill". & feel absolutely
impotent about what to do. It is nice to have a wonderful forum such as this
to express your feelings and to have "sooo many" people come to you with
suggestions.
See Paula, I have considerations and feelings too. :)
Take care Hairo and best of luck..........Steve
----- Original Message -----
From: "Hairo Jairo"
To:
Sent: Friday, February 25, 2000 4:25 AM
Subject: Re: Damn!!
> Hey man,
> I am really sorry too !!!!!
> What's this, "dumping over the internet ?"
> Any way, TKYU very much for your postings.
> I'm learning a lot.
> I haven't even started yet. I am still stuck in composting.
> Do fish eat compost ?
>
> ----- Original Message -----
> From: Steve
> To:
> Sent: Thursday, February 24, 2000 5:46 PM
> Subject: Damn!!
>
>
> > This is probably going to be the most unprofessional post that I will
ever
> > do.
> >
> > I'm just really "bummed"!
> >
> > I just finished cleaning my tanks and for no reason whatsoever, that I
> know
> > of, everyone of my babies DIED! (Almost 400 of them!!)
> >
> > I mean, this is not the first time that I have cleaned tanks. I started
> > noticeing a few floaters and then a whole bunch of floaters and then
> > everyone was acting erratically in both 10-gal's...and then shortly
after
> > that...they were all DEAD! I'm suppose to know what I am doing with
this,
> > but this baffles me. Yes, the temp was o.k.
> >
> > Sorry, I'm just "venting". I'm really sad about this. I go to a lot of
> > trouble with these guys!!!
> >
> > I have to vent to someone and no one else would understand.
> >
> > Sorry, for this!! but....DAMN!!
> >
> > Steve
> >
> >
>
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| Message 2 |
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Subject: Re: Damn!!
From: "Hairo Jairo"
Date: Tue, 7 Mar 2000 19:52:44 +1000
Sorry man,
I didn't mean any offence.
Sorry about your lost.
----- Original Message -----
From: Steve
To:
Sent: Tuesday, March 07, 2000 5:54 PM
Subject: Re: Damn!!
> Hi Hairo,
>
> Sorry that it took a while for me to get back to you. With respect to
Paula,
> I will not send the message that I originally was going to send. (Old age
> does that to you...makes you think first...something that you obviously
have
> not learned.)
>
> I was really going to blast you. I understand that you have not even
started
> yet...wait until you have your first major "fish kill". & feel absolutely
> impotent about what to do. It is nice to have a wonderful forum such as
this
> to express your feelings and to have "sooo many" people come to you with
> suggestions.
>
> See Paula, I have considerations and feelings too. :)
>
> Take care Hairo and best of luck..........Steve
>
> ----- Original Message -----
> From: "Hairo Jairo"
> To:
> Sent: Friday, February 25, 2000 4:25 AM
> Subject: Re: Damn!!
>
>
> > Hey man,
> > I am really sorry too !!!!!
> > What's this, "dumping over the internet ?"
> > Any way, TKYU very much for your postings.
> > I'm learning a lot.
> > I haven't even started yet. I am still stuck in composting.
> > Do fish eat compost ?
> >
> > ----- Original Message -----
> > From: Steve
> > To:
> > Sent: Thursday, February 24, 2000 5:46 PM
> > Subject: Damn!!
> >
> >
> > > This is probably going to be the most unprofessional post that I will
> ever
> > > do.
> > >
> > > I'm just really "bummed"!
> > >
> > > I just finished cleaning my tanks and for no reason whatsoever, that I
> > know
> > > of, everyone of my babies DIED! (Almost 400 of them!!)
> > >
> > > I mean, this is not the first time that I have cleaned tanks. I
started
> > > noticeing a few floaters and then a whole bunch of floaters and then
> > > everyone was acting erratically in both 10-gal's...and then shortly
> after
> > > that...they were all DEAD! I'm suppose to know what I am doing with
> this,
> > > but this baffles me. Yes, the temp was o.k.
> > >
> > > Sorry, I'm just "venting". I'm really sad about this. I go to a lot of
> > > trouble with these guys!!!
> > >
> > > I have to vent to someone and no one else would understand.
> > >
> > > Sorry, for this!! but....DAMN!!
> > >
> > > Steve
> > >
> > >
> >
>
>
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| Message 3 |
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Subject: mineralization...
From: laberge@cil.qc.ca (LABERGE MARC)
Date: Tue, 7 Mar 2000 09:08:05 -0500
Much appreciated Ted,
Thank You
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| Message 4 |
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Subject: Addendum - Fwd. Organic Seafood-USA
From: S & S Aqua Farm
Date: Tue, 07 Mar 2000 09:00:27 -0600
HAve just received more information about the workshops mentioned below.....
"FYI, the other workshop and hearings listed below will discuss organic
aquaculture, but will have more of an emphasis on the organic certification
of wild harvested aquatic organisms."
Thanks to Deborah Brister at U of MN.
-------------------------------------------------
Yesterdays post:
Saw this posted today on the AQUA-L list, and thought some of you might be
interested. Paula
------------------------
>
>Hey folks,
>
> I just found out that the National Organic Program within USDA is
>having a National Organic Standards Board Meeting in Buena Park, CA on
>March 21 and 22. They are setting up dates for the Certification of
>the production and handling of organic Seafood and are having meetings
>
> There is a web site that you might look at :
>
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| Message 5 |
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Subject: Fwd - Notice - Organic Aquaculture Standards Workshop (US)
From: S & S Aqua Farm
Date: Tue, 07 Mar 2000 09:07:05 -0600
I was going to forward this to a few of our list members who I know are
involved with attempting to formulate US aquaculture standards, but realized
there are many of you on the list who might have interests of which I'm not
aware. So, here's the request sent to me by Deborah Brister. Please
respond directly to her if you have would like to participate in this exercise.
Paula
--------------------------------------------------
From: "Deborah J. Brister"
To:
Subject: organic aquaculture workshop
Date: Tue, 7 Mar 2000 00:24:01 -0600
Hi Paula,
Last June, Professor Anne Kapuscinski (University of Minnesota) and I
presented extensive comments and recommendations for organic aquaculture
standards to the National Organic Standards Board in Washington D.C. At that
time, we had also suggested that more input, especially from aquaculturists
already certified and those seriously interested in becoming organically
certified, was needed.
We offered to conduct a national organic workshop where experts and
practitioners in organic agriculture,aquaculture, fish health, nutrition,
water quality,environmental conservation, animal welfare, certification and
other interested parties could participate in discussion groups that will
more clearly define issues and identify further steps that might be
necessary to bring national organic standards to fruition. The USDA's
National Organic Program as well as the National Organic Standards Board
fully supported this idea and so the workshop (as mentioned below) will take
place June 23rd and 24th, 2000.
The workshop will begin with speakers presenting the background on key
issues such as the use of fish meal/oil and other capture fisheries inputs;
use of netcages and effluent management; use of synthetic medications,
predator control and more. Breakout groups will then be able to discuss
these issues in depth. Following the workshop, we will produce a synthesis
report that will be made available to the attendees and other interested
parties, and will be submitted to the NOSB to assist them in the standards
development.
To ensure sufficient, in-depth dialog amongst a manageable number of
participants, attendance at the workshop will be by invitation. Paula, if
possible, please alert me to any parties that may be especially interested
in organic aquaculture and the development of these standards. We would like
this to be a very productive workshop and value the experience of those who
are or are attempting to organically certify their aquaculture operations.
I will be leaving for New York March 7th, but look forward to hearing from
you when I return at the end of the week. Thanks for your help,
Deborah
Deborah J. Brister
Research Specialist
Aquaculture & Environmental Policy
University of Minnesota
Department of Fisheries and Wildlife
200 Hodson Hall
1980 Folwell Avenue
St. Paul MN 55108-6124
djb@fw.umn.edu
S&S Aqua Farm, http://www.townsqr.com/snsaqua/
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| Message 6 |
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Subject: Fwd - Modeling
From: S & S Aqua Farm
Date: Tue, 07 Mar 2000 14:59:08 -0600
Received the following this morning. Welcome, Matt. Let's hope the list
can generate lots of good information for you.
Paula Speraneo
-----------------------------------------
>Hello,
> I am a college student at SUNY Geneseo and am in a new class (bio388),
>Modeling [dynamic] biological systems. Foe one of our group projects we
>decided to model an aquaponics set up. I wanted to subscribe to the list to
>hear of peoples experiences with the system and any data they might have of
>growth rates, conversion factors, etc.
>thank you in advance
>Matt Mirabello
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| Message 7 |
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Subject: Re: mineralization...
From: "TGTX"
Date: Tue, 7 Mar 2000 20:45:30 -0600
> Much appreciated Ted,
>
> Thank You
You're welcome. Just take it all with a big grain of salt and call me in
the morning.
Tedzo.
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| Message 8 |
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Subject: Re: Experimental lighting questions
From: "Sam Levy"
Date: Tue, 07 Mar 2000 21:09:41 PST
fred--
i've run into (& experienced) many incidents of cannibalism is fish. my own
feeling is that it falls. in general, into two categories:
cannibalism as a result of improper nutrition (unbalanced diet)
cannibalism as a form of "social" behaviour
regarding the first, how are you hatching, rearing, & weaning the larval
fish & under what type of conditions.
if intensive, are you using commercial enrichment products & have you
compared (they are not all the same--& some may well be better suited to
different species)
it is not clear from your letter if the larval rearing tanks are clear--if
so, why not add single celled algae??--i can't give you teh citations at
this moment but work done in the 70s & 80s on marine fish larvae indicated
that larave grown in green water (irrespective of the algae species) thrived
relative to those grown in clear water.
what protein:lipid ration is in the dry diet & what are the sources (i.e.
how much animal protein & how much marine fish oil?)
one of the usual management tools for dealing with cannibalism is
grading--and it can make a big difference while you're sorting out the
problem. we use graders as small as one mm in width between bars.
how about crowding--some fish respond with reduced aggression when
overcrowded--on the other hand, some just seem to find that dinner is more
readily available--you might want to use floating net cages to crowd the
fish and see what happens (this technique also makes it easier to handle for
coutning/grading/whatever while you're trying to figure out where to go
next)
just a few random thoughts
sam
>
>
>Annually, we produce millions of juveniles for enhancement and experimental
>culture. A few waves of virus-caused catastrophic losses aside, our
>biggest problem is cannibalism. My experiment will compare larval
>success/behavior/growth under different colors and intensities of light.
>
>Here's why this experiment may show differences. Salt water, plankton,
>detritus, and dissolved compounds in the natural larval habitat absorb red
>and blue wavelengths. In the hatchery, we use white light, usually
>mimicking day light: full spectrum with a little extra red. Our larval
>culture tanks are crystal clear recirculating and shallow, not filtering
>much blue or red wavelengths. Perhaps the reds and blues are artificially
>stimulating anti-social behavior.
>
>
>
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| Message 9 |
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Subject: Re: Experimental lighting questions
From: "Sam Levy"
Date: Tue, 07 Mar 2000 21:12:00 PST
sorry, forgot one last suggestion,
have you considered using differeing number of layers of shade cloth over
the tanks--as a brief look at light intensity rather than color?
sam
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