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> "." cfl.rr.com> wrote in message
> news:45bb9a0c$0$28122$4c368faf@roadrunner.com...

>> Not everyone can watch Nova - so far as I know it is a US show and most
>> of us live in countries where it is not shown.
>>
>> In any case, what are the environmental contaminants that you are so
>> worried about? The main effluents from fish farms are faeces and
>> soluble nutrients, which are generated by any form of animal production
>> and must be dealt with whether from cows or fish. The use of chemical
>> additives, such as antibiotics or pesticides, is controlled or
>> forbidden.
>>
>> Bill Silvert
>>
>>

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