Rework your equation in a single variable, reduce it to a straight linear
equation :)
The chances are the same with each introduction after the first only if the
first actually takes... after that it doesn't really matter anymore, the damage
is done. And if the introduced fish hybridise with the locals then you will
never get rid of the genetic damage.
Regards, Andrew
______________________________ Reply Separator _________________________________
Subject: Re: [RML] Re: Hybrid ethics-
Author: MIME:straube at digital.net at INTERNET-MAIL
Date: 2/3/98 5:24 PM
I'm by no means an expert on any of this, but it seems to me that
establishment of exotics is at least partly based on exsposure. That is,
if a single idiot dumps a tankful of spiecies X into a stream, the
chances off the fish surviving is going to be Y. But if let's say ten
idiots do the same then the chances are ten fold (10Y). So having said
that, the more the idiots that have acess(sp?), the greater the exposure
rate, and the grater the survival. Now I'm sure it's not quite that cut
and dry and I'm not advocating banning or importation one way or another
(just havn't made up my mind yet).
Now that I have stuck my foot in it, I'm not sure I want to take a look
at the mess ;)
Bjorn