I suspect there are a couple of ways to look at what you are seeing -
perhaps in past times there were blue-eyes and other native species as thick
as this . I have seen P. tenellus swarm similarly at Scott's Creek in the NT
and M. nigrans in Berry Creek awaiting death in their thousands.
However gambusia are reputed to have greater tolerance to pollution and low
O2 levels than natives so the pure culture of gambusia you are seeing now
may have been tinged with blue-eyes and others a week or two ago.
Regards,
Bruce Hansen
president at angfa.org.au
Please visit us at http://www.angfa.org.au
----- Original Message -----
From: "Darrell Edwards" <vk2mna at yahoo.com>
To: <rainbowfish at pcug.org.au>
Sent: Thursday, March 09, 2000 5:11 PM
Subject: Re: [RML] Gambusia control
> I have noticed in the Myall Lakes area that all the evaporating pools
after
> flooding are thick with Gambusia to the exclusion of any other species. I
> wonder if Blue Eyes or anything else would have filled this niche in pre
> Gambusia times?
>
> Cheers, Darrell
>
> vk2mna at yahoo.com
>
>