Originally Posted by Coryluv
I think they are pretty in their own way, but I definitely prefer danios and tetras in their more natural colors. I'm not even too big of a fan of albinos. I think Glofish are a nice option for people who enjoy and want to keep them. There is no fish cruelty involved.
Dyed and tattooed fish are another matter. I'm totally against that.
I'm concerned about genetic modification of fish that can escape back into and change nature, though. Have any" wild" escaped Glofish been found that have survived and bred? Is the modified gene dominant?
I honestly don't know about what type of gene action occurs.... My guess is co- dominance... So it would be harder for the jellyfish gene to be expressed when bred with normal populations..... But like I said that's just my guess, I'll have to research it because now I'm interested.
Although I don't think changing nature is always good..... Man had affected almost all 'wild species' (those known).... What is now considered natural was introduced by man.... Especially in agriculture to take advantage of hybrid vigor and influencing attractive traits for things like more milk production, egg production, immune protection, carcass traits, body shape, etc.......... Like almost all things it has its pros and cons... Even with fish hobbyist, many fish we think are natural/normal breeds/colors wouldn't be around if it were not for man influencing them or manipulating them..... Most color morphs & size ranges (giant, dwarfs, etc) are created by selecting an individual in a species with a genetic mutation for a select trait (example dwarf size) and selectively breeding that individual with others that have the mutation until almost all the offspring are dominant for the intended mutation.... (Dogs, cats, reptiles, etc)
I do agree that manipulated animals shouldn't be released into a ecosystem that they do not belong to though..... Like the fact there are massive loads of green iguanas in Florida.....
Where I live conservation thought it was a good idea to transport Japanese jumping carp to a local waterway.... It completely messed with the ecosystem, and now they are freaking out trying to remove them.... It's even legal to shoot the fish to try to stop population numbers.... You have to use steel shot.....