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Re: Sustainable Aquaculture



In article <Pine.SGI.3.91r.961014204807.20600J-100000@freenet>, Brian K
Petroski <petroski@freenet.msp.mn.us> writes
>On Sun, 13 Oct 1996, Stephen Bedford Clark wrote:
>
>> Does this newsgroup still cover the issues and development of
>> sustainable freshwater aquaculture?.
>> i.e fish culture using natural feed inputs without reliance upon
>> chemicals or antibiotics
>> 
>> What interest is there out there from farmers to move towards Integrated
>> Farming Systems by the utilisation of waste resources and the production
>> of microalgae, fish and hydroponics sytems ?.
>
>     I would like to hear more about this also.  My plans include an 
>aquaculture pond where we will raise some fish and crayfish or freshwater 
>crabs as a primary protein source.  The shellfish being scavangers 
>readily thrive on "waste" products from other sources.  Part of what I 
>need to know if what types of fish can I keep in the pond that will be 
>compatible with the crayfish/crabs?
>
>
>
>                           Brian Petroski
>                       Just your stereotypical
>                             polysexual,
>                              bisexual
>                           solitary pagan
>                      from St. Paul, Minnesota
>
>
Dear Brian,

Depends very much on your local species and the levels of dissolved
oxygen in the water.

Obviously, you want to produce fish which is acceptable to your taste.

Carnivorous species (trout, bass, catfish) would compete with the
crayfish, so it would need to be a omnivore/herbivore such as the common
carp. This fish is cultured in Asia & Europe for food and could be
introduced to your system.

In the US they are looked upon as a 'trash fish' and relatively non-
commercial so you would need to seek out some recipes and decide for
yourself, as I take it that you would be the one eating them!.

Stephen


SBC & Associates
Sustainable Freshwater Ecology & Aquaculture Consultancy Services
7 Ballam Avenue
Scawthorpe
Doncaster
United Kingdom DN5 9DY
Tel: + 44 (0)1302 782597
Fax: + 44 (0)1302 782597
email: sbc@fishace.demon.co.uk

A list of services and experience are available at:
http://www.fishace.demon.co.uk/index.htm



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