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Re: Long time maintenance was KillieTalk Digest V3 #1383

Hi all,

Martin Ravn Tversted wrote:
> a generel diskussion about what species people has kept for a long time?
> how long?

Wright replied;
> Let's start with the *Fundulopanchax walkeri* GH 74/2 Kutunze.
> Maybe seven years or more? I forget.

Allen Johnson replied;
> I have had Cynolebias whitei (now Nematolebias whitei) nearly
> continuously since I first acquired them as my first killies purchased
> through the F&EL from Ed Warner back in the winter of 69/70.

Lee replied;
> I have had about the same experience over the same period with
> the same species. I don't remember where I got mine originally
> (maybe from Allen Johnson) and I have occasionally gotten some
> new specimens, described loosely as "red" or as especially large
> stock (entered by Royal Ingersol at the 1997 convention).
> I have not "interbred" these but kept them separate. Probably
> those who believe that inbreeding is deleterious would have done
> otherwise. I have seen no deterioration with time and generations.

I'm curious whether the fishes maintained were 'interbred' with the same line, from other killi-keepers or inbred from the stock parents/siblings, throughout the entire maintenance period. Seven years is a long time with inbreeding (so I thought)... until I read of Allen's original stock from 69/70 !!.

Reason I asked was that a recent batch of Fp. SJO had spinal deformation and my sole response from Ruth (her personal opinion indicated 'inbreeding').  I can see that line of reasoning .... the same have been observed with fancy guppies, bettas and rams.... they're progressively less robust, more inclined to succumb to diseases and more
deformities.  Even though I kept the deformed SJOs for mosquito control, they didn't last.... Mother Nature took care of the culling.

Lee's posting doesn't quite tally with my thoughts when he mentioned " not 'interbred'" & not observing "deterioration with time and generations".

I'd like to maintain some species and knowing no degenerative effects from inbreeding will help.  Could someone shed some light here?

Regards,
Ronnie
from sunny (hot!) Singapore

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