Re: Nannochromis tranvestitus

[Dave Gomberg <gomberg@wcf.com>]

When a fish has exceptional characteristics (such as great rarity (at least
to you) or great color or finnage or ....)  a high degree of judgement must
be exercised in deciding what to do about breeding the fish.
Consideration must be made for undesirable characteristics the fish may
have as well and a decision as to how to compromise between the
desirability of the good stuff and the undesirability of the bad stuff
made.   Key to this decision is whether the bad stuff is genetic or
environmental or both and the degree to which the genetic component can be
detected in heterozygotes (assuming only a single locus is involved).  If
the trait is recessive, it can be difficult to eliminate the genetic burden
from a strain, although it is by no means impossible and if the favorable
traits are important enough, it should be done.   If the trait is dominant
or codominant, elimination of the burden is trivial (assuming it is worth
doing at all).   If you read prior posts in light of the above, you will
see a lot of genetic trash being peddled as tautology.

At 09:25 PM 11/29/1999 -0500, you wrote:
>Dave
>What prompted the remark about believing what you see online?   Was it
>Bob's comment about not breeding a deformed female or what? Kind of
>curious about your thinking.   I thought that was actually good sound
>advice.  I would never use a deformed fish as a breeder unless it was an
>extremely rare fish and that was all that was possibly available for
>eons.   I've sent several fish to the community tank or to larger
>cichlid tanks that were deformed over the past 10 years to live out
>there lives or be eaten by the big boys.   Never had a problem doing
>that in my mind.   I actually grew out to adult old age a male
>cacatuoide double red that had awesome colors but looked like a big red
>balloon belly Cacatuoides.  Never once thought of using him as a
>potential breeder even with his great colors.  I didn't have the heart
>to feed him to the Oscars because he had such intense colors.   Wish
>some of his brothers had his great color.   He lived to almost 3 years
>old before retiring to the great fish school in the sky.  
>
>John Wubbolt
>
>
>
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--
Dave Gomberg, San Francisco            mailto:gomberg@wcf.com
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