> On Wed, 2 May 2001, Bruce Hansen wrote:
>
> > BTW I haven't heard of any reports yet of any deleterious effects of
this
> > fish on native species or on the environment - I presume that is because
> > funds haven't been allocated for a comprehensive assessment.
>
> Basically Bruce is correct, there really hasn't been any work done on
their
> effects anywhere (they are also common in parts of the USA). They can
reach
> pretty extreme densities, although that tends to only be in certain
habitats.
> Their preference based on my experiences is billabongs with lots of
organic
> stuff on the bottom such as what you get from having a lot of reeds. I
> suspect this is because they can easily bury into that stuff. Might also
be
> that those are just the easiest places to catch them too. The main
concern is
> that they could potentially be very effective eaters on fish eggs.
>
> Tootles
> Peter J Unmack peter.unmack at asu.edu
> ---------------------------------------------------------------
> DESERT FISHES RULE: To boldly thrive where no other fish can make it!
>
> Desert Springs Action Committee at http://www.tkphotos.com/dsac/
> Desert Fishes Council http://www.utexas.edu/depts/tnhc/.www/fish/dfc
> Australian Desert Fishes as above just add australi or click on Australia
> Australian Freshwater Fish Biogeography at http://www.peter.unmack.net/biogeog
> North American Native Fishes Association at http://www.nanfa.org
> Native Fish Australia at http://www.nativefish.asn.au
> Aquatic Conservation Network at http://www.acn.ca
>
> "The biggest cause of trouble in the world today is that the stupid
> people are so sure about things and the intelligent folks are so full
> of doubts." -Bertrand Russell