Re: new aggie

[Mike & Diane Wise <apistowise@fgn.net>]

You're right, Jerry, this is what happened when
the first A. sp. Tefé entered the hobby. They were
mixed with A. agassizii from the mouth of the
Tefé. Females are next to impossible to separate.
When forced to interbreed in aquariums we got a
lot of fish with messed up scales (see Römer
Atlas, p. 255 bottom) that were nearly infertile.
This is the problem of haphazardly crossing the
various agassizii forms; some are the same
species, but some are not!

Mike Wise

JerrCarol@aol.com wrote:

> In a message dated 8/23/2002 6:21:43 PM Eastern
> Daylight Time, apistowise@fgn.net writes:
>
>
> By definition a population of a species is, "...
>
> one species, occupying a defined area and
> usually
> isolated to some degree from other similar
> groups"
> (=populations). This is from "A dictionary of
> ecology, evolution & systematics", Cambridge
> Univ.
> Press. By this definition they will not
> interbreed
> in nature without intervention because they are
> isolated from other populations. In the aquarium
>
> they will certainly cross with other populations
>
> of A. agassizii - and many of the aggie-like
> forms
> that may or may not be truly A. agassizii.
>
>
> Thanks much Mike,
>   for the definition and better understanding. I
> believe Jota was referring to that too. I
> wouldn't dream of trying to get an Agassizii to
> interbreed with another type but sometimes the
> aquarium brings about different Agassizii CF due
> to them breeding with each other. And sometimes
> they are quite interesting.
>
>
> Thanks
>
>
> Jerry...
>
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