RE: [Killietalk] re: F0 designation

["Brian R. Watters" <bwatters at sasktel_net>]

Kyle Osterholt wrote:

>
> ............ and any hybrids are
> considered aquarium strain and don't make a difference whether
> they are 1st or 2nd generation hybrids because they're just mutts
> anyway.
>

Not so.

Hybridisation is regarded by some scientists as a valid way of determining
the relationships between populations of killies that may or may not
represent the same species. For example, many different species of
Nothobranchius will produce viable eggs when crossed and these may produce
F1 hybrids. If the two populations represent the same species then viability
will be retained through subsequent generations (F2, F3, etc). However, if
the two "populations" do, in fact, represent different species, then the
progeny will become non-viable in the F2, F3 or perhaps only in the F4
generations. Obviously, in an experiment such as this it is important to
keep track of, and to document, the viability in relation to the generation.
This is scientific method, not hybridisation for the sake of producing some
weird or different looking fish. Hybrids produced in this way are never
released into the hobby.

>
> Lets get back to killitalk and forget the BS guys, I'm
> tired of reading through 10 digests of arguements over nothing.
>

This thread was not really an argument but rather a discussion about
something that many people have an interest in.

>
> I joined the AKA and signed up for this mailing list because I
> thought it would further my understanding of killifish keeping
> and breeding.
>

If you stick with KillieTalk you will get a lot of information about keeping
and breeding killies but you should also appreciate that the interests of
killie keepers are broad so there will, inevitably, be subject matter
discussed here that will not be of particular interest to you, although it
will be to others.

>
> ....... I must say, the "chicklet"
> keepers have done a much better job to further their hobby than
> the killifish keepers. There is very poor info as far as books
> and website information goes the forums on AKA.org are pretty
> much nonexistent and now I'm seeing that the only real source
> of information and contact with other killikeepers (killietalk) is
> becoming just a good place for people to bitch............
>

Well, that is certainly debatable but I won't say any more for fear of
starting another discussion that you won't approve of.
___________________________________________
Brian R. Watters
University of Regina
Regina, Sask. S4S 0A2, Canada
Ph: (306) 584-9161 (home); (306) 585-4663 (work)
Fax: (306) 585-5433
E-mail: bwatters at sasktel_net



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