Re: yellow aggies (wasRe: will the real A. agassizi Tefe please stand up?)

[Mike & Diane Wise <apistowise@bewellnet.com>]

Steven,

The fish you are talking about (p. 120, top) is the probable lower Amazon form
mentioned in the last post. The gold aggie (p. 121, bottom) is apparently a middle
Amazon form. (For those who have Koslowski's book and want an English translation, I
can provide one.)

Whether or not it is a valid A. agassizii (same as the holotype) right now depends
on if you want to split up the species. A. agassizii, as it is presently recognized,
is a species with an extremely wide distribution pattern. There is a good
possibility - especially if you're a "splitter" - that some color forms and odd
shaped populations represent separate species. We may be dealing with a
super-species that has many closely related sibling-species (present day taxonomy
doesn't like the idea of subspecies). Koslowski  recognizes over a half dozen "cf.
agassizii" forms. This is why I prefer to keep populations pure and not mix
specimens from different locations. This, of course, doesn't apply to domestic forms
developed for enhanced color.

Mike Wise

swaldron@slip.net wrote:

> Mike,
> Thanks for your thoughts- very interesting read, on second glance at
> Koslowski- my fish looks very similar to the gold aggie as you say. The
> only photos I have seen of A. sp. tefe were from a DATZ article written by
> Ingo a number of years ago- I wasn't sure of those wavy bands parallel to
> the lateral band were mood dependent...interesting fish, seems
> gephyra-like.
>
> What do you think of the slim-bodied, yellow/purple aggie in Koslowski? I
> used to think that was just an unusual photo...but a few years a go i saw
> an import of aggies from Brazil that had the same morphology- wonder if it
> is something unique? thanks again for your time
>
>
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>                "Natural History, Captive Husbandry, Conservation and
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