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RE: gardneri gold was A. hera TDK 97/30
Scott Davis wrote:
> Humm... maybe I'm shooting my mouth off here. (Or shooting myself in the
> The story is repeated as I probably miss-heard it. (And less interesting
> than your account.)
> The situation of two wild color strains is fascinating - and reminiscent
> of the yellow and blue gardneri from Akure. (Now you've got me
> wondering if I've messed that one up too. :) )
Scott, there is no need to feel embarrassed. There seems to be very little
detailed information available about Eggers and Kasselmann's collections and
I asked the question because I thought perhaps you were aware of a reference
source that might throw some light on the matter.
The situation with two color forms in the same wild population of this
species is interesting but by no means unique among Nothos. N. ugandensis
shows this (blue body/yellow caudal form and blue with red reticulated
body/red caudal form) as does N. neumanni (form with solid red caudal and
form with banded caudal). In these cases also, the females are all the same
and breeding with a male of either form will produce off-spring of both
types. Presumably, this would be the case with those populations of N.
korthausae that are mixed in the wild.
> Were the collectors able to distinguish females of the red and brown
> If not, how did they establish strains?
I have no information about this but I feel quite sure that the females
would have been of a uniform type.
The original strain of N. korthausae (derived from Korthaus' collections)
was of the brown/yellow form and never threw any reds that I know of. I
obtained F1 (or F2 ?) fish of this species from the BKA New and Rare in 1974
and these never produced any reds. I also had a strain of red that I
purchased at an AKA convention in the late 80s which were gorgeous and
produced pure reds for many generations (before I stopped keeping them). I
also had a strain of brown/yellow that came from the Bay area (via Dale
Weber) that were also very attractive, with clear sharp patterning (typical
of the brown/yellow form introduced by Eggers) that also bred true and never
threw a red.
> Did they breed certain males to certain females,
> keep records of the batches and parents and then keep the consistently
> colored offspring?
I have no idea but would welcome any information that anuone might have.
> Brian, thanks for the corrections on the Red KOR. It is a little
> awkward to find the
> story is being incorrectly told, but far better to get it straight.
As I said, you may well be right about the single red male - I just don't
know. However, I think it is unlikely.
Tim Addis wrote:
> ......red & brown from the same hatching.
> I would be interested to hear if if lourensi had a similar occurrence
No, N. lourensi shows very little variation, not only within particular
populations but also between widely separated populations.
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 sk_sympatico.ca
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