Pure baloney.Sir Nathan XXI Posted on Apr 21 2003, 11:18 PM
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when talking about tank raised something you need to factor in is the level of inbreeding as well, after one or two rounds of that, the rbps look pretty wierd, my bro-inlaw has one and its just odd looking
typically wild ones have better color but it does fade away with age so that shouldnt matter too much for you
a benefit with wild ones is a lower likely hood that you have sibling fish, that way if they do breed, chances are they arent going to inbreed
Inbreeding:
Sometimes, piranhas inbreed so much that deformities can occur (as shown by the following pictures of Pygocentrus nattereri). This type of "difference" in appearance can lead to the school eliminating them
This also occurs in nature, hence the phrase This process is called "NATURAL SELECTION." Natural selection occurs in nature too and not limited to the aquario as you are intimating. If you note I make mention of Paraguay populations and nothing is carved in concrete, because even wild salmon vs farm-raised are difficult to tell apart other than humans clipping adipose fin. Genetically, they are the same. Other than loss of color and probably additionally serrae count your argument doesn't hold much weight or fact because you are not comprehending the paragraph I wrote into my web site.Sometimes, piranhas inbreed so much that deformities can occur (as shown by the following pictures of Pygocentrus nattereri). This type of "difference" in appearance can lead to the school eliminating them. This process is called "NATURAL SELECTION." If you have a small school of piranha (more than 2), you will see how they single out certain individuals from the school based on 1) size, 2) spotting, 3) and/or lack of social behavior. According to Catharine A. Toft (University of California) an example is used of too much inbreeding of a cichlid species (Papiliochromis ramirezi) to emphasize that species lost their original brilliant coloration after many generations of captivity. There are other examples, but scientists are divided on how many problems inbreeding does cause. It is my opinion (without actual proof) that the species S. ternetzi (Steindachner 1908) might have been described from a fish similar to this one below. We will never know for sure, however it might be plausible to assert that certain populations of piranhas over generations of breeding could create a population of species with unique genetic traits passed on such as those found in the Paraguay region ie; head shape, body shape etc. But since these traits are widespread among populations of P. nattereri, it does give one a reason to think and explore if that might be the reason why some piranhas have much more unique traits than other without diminishing the scientific placement.
I would not concern myself to much over Sir Nathan III remarks. He is misreading my information and it would take many generations of breeding piranas before you would even see a difference. So relax.CoolD Posted on Apr 22 2003, 06:39 AM
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i agree, this was an interesting post, and the thought if inbreeding never even occured to me before.
Now i am worried if i breed my fish that they will have weak immune systems and be half retarded
And btw: what's wrong with owning Corky the Piranhahastatus said:I would not concern myself to much over Sir Nathan III remarks. He is misreading my information and it would take many generations of breeding piranas before you would even see a difference. So relax.CoolD Posted on Apr 22 2003, 06:39 AM
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i agree, this was an interesting post, and the thought if inbreeding never even occured to me before.
Now i am worried if i breed my fish that they will have weak immune systems and be half retarded
That little dude on franks site does kind of look like Corky...Judazzz said:And btw: what's wrong with owning Corky the Piranha:
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