> I do agree that the ideas offered in the guideline are excellent. But
> the recourses available to aquarist just aren't there. Each club
> taking on 10 species at 10 tanks would require 100 tanks. I really
> don't know many clubs that could get up that kind of enthusiasm or
> numbers. I think the ACN (I got it right this time) would do well to
> get an average of two to three species by the average club.
How many tanks do you have in your fishroom Cary? How many people keep
only one species per tank? You could keep all ten in the same tank if
they all got along and were easily distinguished. Irrespective, I
understand your point and my example is extreme. Even if a club only
kept three species it is better than how many they keep at present. :-)
> I wouldn't mind seeing it. If you don't post it here, e-mail me a copy
> direct.
I'll blip you a copy soon.
> I guess one collection doesn't really tell the whole tale. It would be
> interesting to see what would happen if the newest collection were
> crossed into the old collection. Would it improve it or in a couple of
> generations would we see even more problems. It also brings out the
I think that if you know the earlier stock had problems you get rid of
them and replace it with the new.
> Part of my point is if we were to cross Goyder Rivers from the newer
> collection to an older collection would we be messing the fish up. Or
> would we be reinvigorating the line. I'm not really advocating taking
I think that mixing lines from the same stock can only be good.
> fish from another river. But how alike are the fish genetically.
The question is how alike were they to begin with. If they came from the
same locality then I would consider then the same. Of course this may
vary with the species. This would not work for some salmon and trout runs
as different years have specific runs which can be genetically distinct.
> is a long river by my maps. Would a couple of hundred miles make a big
> difference or not. I guess there really isn't much data on how far
> bows travel in a river environment.
excellent question. Probably not a significant difference unless there
is some barrier beit a waterfall or habitat change. There are just so
many variables. I don't think I would lose much sleep over it though.
Peter Unmack