Not sure whether or not these are different species of fish, but coloration/patterns is not how you would distinguish. Those change from individual to individuals among species and while there usually are some general characteristics, those are usually true of all of the fish that the originals fish is closely related to. If you really want to know, look online to find a morphological key of either the family(cichlid) or the genus(Rocio) and spend an hour keying it out. (of course you may have to take the fish out of the water to do this successfully...)
More Controversial Jack...
- Thread starter Calihawk
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look at domestic dogs, every single variant from chihuahuas to great danes are the exact same species. domestic dogs perfectly show the progression of line breeding and selective hybridising.
for instance the Giant schnauzer was created by crossing schnauzers with great danes, a little inbreeding and then some selective breeding so now they are their own species. leave it 30 years and I´m sure FHs will be considered their own species.
these JD´s are all JD´s. otherwise there would be no such thing as blue gene dempseys. If the blue form was another species, or a hybrid. and you bred it with a regular form you would get varying degrees of blueness in the fry and they would look like a mix, like all cichlid hybrids. instead you get blue, normal or blue gene. its like if I bred a synspilum with a black belt, but got pure black belt babys, who carried a syn gene.
it is just pointless to even suggest that its a hybrid or other species, its an isolated gene which is probably from a particular local varient of JD but JD nonetheless.
for instance the Giant schnauzer was created by crossing schnauzers with great danes, a little inbreeding and then some selective breeding so now they are their own species. leave it 30 years and I´m sure FHs will be considered their own species.
these JD´s are all JD´s. otherwise there would be no such thing as blue gene dempseys. If the blue form was another species, or a hybrid. and you bred it with a regular form you would get varying degrees of blueness in the fry and they would look like a mix, like all cichlid hybrids. instead you get blue, normal or blue gene. its like if I bred a synspilum with a black belt, but got pure black belt babys, who carried a syn gene.
it is just pointless to even suggest that its a hybrid or other species, its an isolated gene which is probably from a particular local varient of JD but JD nonetheless.
I read somewhere that EBJD are a Nazi experiment gone wrong (just like bigfoot), and that they will play a major role in the apocolypse.
Kind of correct but incorrect at the same time. It's not selective "hybridising" as they're not hybrids...they're all dogs (Canis lupus familiaris). The giant schnauzer is not it's own species...it's still Canis lupus familiaris.
I agree with what Matt (dogofwar) is saying, like usual.
I know thats why the first thing I said was that they are the same species, I probably shouldnt have used the word hybridising to describe breeding two dogs together lol.
problem is I´m good at making points but bad at writing them, so that only I actually understand just what I meant lol
Damn ebjds. Regarding the two different "strains" pictured in the first post- The first one looks to be older than the one pictured below it ( still has the young juvenile coloration) and anyone who has raised any ebjd from juvi to adult will tell you the color and pattern changes drastically as they mature. I've raised groups of fry purchased at 1". Some ended up having the snake skin pattern (like pic 1) and others turned the solid metallic blue. Those were siblings from the same spawn. Fin shape and length as well as profile shape (beak nose ugh) will vary greatly from sibling to sibling as well. Hmm
A cross between 2 different breeds, strains, variants or cultivars certainly is hybirdization. Fits any dictionary definition of the word hybrid. While it is not a hybrid of 2 different species, it is a hybrid, non-the-less.
That many aquarists often use the term hybrid to mean ONLY crosses between 2 different species, doesn't change the fact that the term hybrid is not exclusive to interspecies hybrids. In fact the term hybrid is much more often used for crosses between breeds, stains, variants or cultivars, especially in agriculture, as well as everyday use.
Well said BC.
Hybridization can occur both intraspecifically, between different distinct populations within the same species, and interspecifically, between two different species. It seems that when it comes to fish, most consider the term hybrid to mean a cross between two fish of different species, without any consideration for the potential of unique evolutionary history, and possibly unique behavioural traits between two different populations of the same species.
Hybridization can occur both intraspecifically, between different distinct populations within the same species, and interspecifically, between two different species. It seems that when it comes to fish, most consider the term hybrid to mean a cross between two fish of different species, without any consideration for the potential of unique evolutionary history, and possibly unique behavioural traits between two different populations of the same species.
