???

[jasonmac978]

I don't know if this has been posted before, if so, I am sorry banhim. I have a question: What does it mean when there is an F0, F1...etc. in front of a fishes name? I am assuming that it has something to do with generation or bloodline or something, but I maybe (prob.) wrong. If someone could please elaborate, I would be most grateful.

JM978

 

[JD_MAN]

F0 - wild caught
F1 - fry of wild....and so on.

You were right.

 

[jasonmac978]

Thanks JD_MAN. Nice fish pix btw. I wish I could get a few shots of mine that weren't always blurry. I am a terrible photog.

JM978

 

[JD_MAN]

Thanks JD_MAN. Nice fish pix btw. I wish I could get a few shots of mine that weren't always blurry. I am a terrible photog.

JM978

No prob....and thanks. The camera that I use helps a lot. (Nikon D80) Once you figure out some of the setting on this thing, it does the rest of the work.

When I was using a P&S I used a lot of light on top of the tank, so I could use a faster shutter speed. It helped cut down the blurriness.

 

[Modest_Man]

It's actually a bastardization of the Filial generations used in controlled breeding situations.

In it's proper usage you have two organisms (plant, animal, etc.) that you cross. That would be the parental (P) generation. Breed their offspring (F1) to each other and you get the F2 generation, and so on. If you outcross or bring in "new" bloodlines, that is your new P generation. You must keep inbreeding to continue the F#.

Offspring generation. F1 is the first offspring or filial generation; F2 is the second; and so on. Successive generations of progeny in a controlled series of crosses, starting with two specific parents (the P generation) and selfing or intercrossing the progeny of each new (F1; F2; . . . ) generation.

In fishkeeping it's pretty different. F0 simply designates wildcaught, and F1, F2, etc. is simply how far removed the offspring are from the wild generation. Say you buy 2 "F0" fish and breed them. You have no idea whether the fish are siblings (most common) or unrelated, simply that they're wild. If they're siblings and you breed them you'd end up with a fish you'd call F1 in the hobby, but they would be F2 in the actual sense of the word, as they would be the second generation of sibling crosses. Does that make any sense?

Then you get into the issues of crossing a wild fish with a first generation...what would that be? A F1/2? Probably best to call it a F2....

Probably way more info than you wanted...