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Pretty Lepomis, but which?


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#21 Guest_fish for brains_*

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Posted 29 April 2008 - 07:42 AM

Pumpkinseed not likely present in drainage fish collected from south western Georgia. If fish derived from aquaculture production then most likely green x bluegill. I will acknowledge the first hybrid does have the orange spots typical of pumpkinseed hybrids.


This isn't my fish. It was caught in the private pond of a person in Louisiana. In the post the guy said "Pond was stocked in 1990 with Bass, White and Black Crappie, Hybrid Bluegill, and Channel Catfish. Don't know where, I think maybe a state hatchery." I know he also has Redears because he posted a photo of a pure one from the same pond.

#22 Guest_centrarchid_*

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Posted 29 April 2008 - 10:30 AM

This isn't my fish. It was caught in the private pond of a person in Louisiana. In the post the guy said "Pond was stocked in 1990 with Bass, White and Black Crappie, Hybrid Bluegill, and Channel Catfish. Don't know where, I think maybe a state hatchery." I know he also has Redears because he posted a photo of a pure one from the same pond.


If photograph recent then either fish is 18 years old (unlikely), another stocking occured later than 1990, hybrids doing some breeding which would not be surprising if pure parental species not present, or pure green sunfish and bluegill both present and hybridizing occasionally.

Most hybrid bluegill sold are green mother x bluegill father.

#23 Guest_fish for brains_*

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Posted 30 April 2008 - 03:21 PM

Is it possible for the original hybrid BG to revert to the two original pure species, and then later have some of those fish hybridize naturally? Of course it's also very possible someone added pure BG to the pond at some point...

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Posted 01 May 2008 - 08:10 AM

Is it possible for the original hybrid BG to revert to the two original pure species, and then later have some of those fish hybridize naturally? Of course it's also very possible someone added pure BG to the pond at some point...


Since the hybrid and subsequent generations of it are fertile (although reduced), I think it is possible for the hybrid to revert grossly back to one of the parents but surely genetic evidence would indicate such a reversion was accompanied by genes from both species to make the hybrid. I have seen ponds that had only hybrid bluegill stocked into them 25 years prior. The fish making up the population were all over the place in terms of appearance and the number of young fish was not as high as I would expect for a similar pure green or pure bluegill population. If the reversion were to take place it would likely require much more time than 25 years and since the conditions are not consistent with those typical for nominal bluegill or green sunfish, the resulting true breeding critters would be distinguishable from either parent. As for the reduced fertility, time and generations would correct that. Seems to me a smaller population would benefit from inbreeding as that would expedite correcting problems chromosome allignment during meiosis and sex determination mechanisms. A much larger body of water is likley needed to stabilize both parental "forms" and I think more extreme version of bluegill and green sunfish habitat would help process.

#25 Guest_itsme_*

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Posted 14 May 2008 - 01:32 AM

I think the first fish that started this thread looks more like a pumpkin green cross. I kind of thought bluegill green, but those usually don't have all that orange color on thier bellies. Those are just the ones I have seen. It is possible depending which parent was which sex could determine how they look, and change this. Since green pumpkins I have seen are usually even more colorful as far as the blues go.



I'm with you, Choup. Looks like green x p-seed. But yeah, since it's in Georgia, maybe green x longear. If there was only green and bluegill, where did all that yellow come from on the belly and pelvic fins? Most likely p-seed. Maybe longear, but they tend to be more reddish than yellowish. Probably a sloppy breeder in the northeast or just someone who likes to experiment. :)

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Posted 14 May 2008 - 07:49 AM

I'm with you, Choup. Looks like green x p-seed. But yeah, since it's in Georgia, maybe green x longear. If there was only green and bluegill, where did all that yellow come from on the belly and pelvic fins? Most likely p-seed. Maybe longear, but they tend to be more reddish than yellowish. Probably a sloppy breeder in the northeast or just someone who likes to experiment. :)


Some hybrids are not intermediate for some characters as we interpret them. Northern bluegill code for intense yellow belly masked most of the time by melanophores giving the bluegill the dark belly in males with yellow to orange undertones. Green sunfish do not code for intense for yellow-orange belly but do so on and around anal fin. Hybrid follows the combined yellow-orange distribution for both parents but the melonaphore experession is weaker than norhtern bluegill allowing much more yellow to show through than in either parent.

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Posted 14 May 2008 - 01:43 PM

Some hybrids are not intermediate for some characters as we interpret them. Northern bluegill code for intense yellow belly masked most of the time by melanophores giving the bluegill the dark belly in males with yellow to orange undertones. Green sunfish do not code for intense for yellow-orange belly but do so on and around anal fin. Hybrid follows the combined yellow-orange distribution for both parents but the melonaphore experession is weaker than norhtern bluegill allowing much more yellow to show through than in either parent.



Interesting hypothesis.




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