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#150728 - 02/23/09 10:00 PM BG x RES cross
CJBS2003 Offline
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Registered: 01/19/09
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I tried to find this information by doing search, but had negative results.

Does anyone have experience with the BG x RES cross? If you do, what is your experience in how the hybrid fish acts? Is it more RES like, staying in deeper water, or more BG like? Pictures?

THANKS!
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#150730 - 02/23/09 10:01 PM Re: BG x RES cross [Re: CJBS2003]
Theo Gallus Offline
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Paging Dr. Condello, Dr. Condello.
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#150732 - 02/23/09 10:08 PM Re: BG x RES cross [Re: Theo Gallus]
dave in el dorado ca Offline
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i can help a little because i stole this pic from here. \:\)



bruce can provide the background, IIRC it was a natural BGxRES cross.....NICE FISH!
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#150736 - 02/23/09 10:28 PM Re: BG x RES cross [Re: dave in el dorado ca]
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That is one huge operculum! Seems like the BG genes really dominate in that fish...
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#150753 - 02/23/09 11:33 PM Re: BG x RES cross [Re: CJBS2003]
AaronM Offline
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#150757 - 02/24/09 12:45 AM Re: BG x RES cross [Re: AaronM]
Bruce Condello Offline
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Obviously in the picture above, the middle fish is the RES X BG.

Here's a little tiny one.


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#150758 - 02/24/09 12:46 AM Re: BG x RES cross [Re: Bruce Condello]
Bruce Condello Offline
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Here's a bigger RES X BG


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#150759 - 02/24/09 12:49 AM Re: BG x RES cross [Re: Bruce Condello]
Bruce Condello Offline
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Slightly bigger yet.


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#150760 - 02/24/09 12:51 AM Re: BG x RES cross [Re: Bruce Condello]
Bruce Condello Offline
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Male RES X BG in breeding colors.


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#150842 - 02/24/09 12:48 PM Re: BG x RES cross [Re: Bruce Condello]
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Dr. Bruce, how the hell can ya work on yer patients if ya can't even bend yer elbows?How do ya eat?
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#150843 - 02/24/09 12:52 PM Re: BG x RES cross [Re: Bob-O]
Bruce Condello Offline
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They act just like a bluegill when it comes to eating pellets, but they do seem more cautious overall, in particular when I'm trying to catch them! \:\)
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Holding a redear sunfish is like running with scissors.

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#150860 - 02/24/09 02:24 PM Re: BG x RES cross [Re: Bob-O]
Theo Gallus Offline
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 Originally Posted By: Bob-O
Dr. Bruce, how the hell can ya work on yer patients if ya can't even bend yer elbows?How do ya eat?

Inquiring minds want to know!

Bruce definitely got that straight arm condition from his Dad.
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#150883 - 02/24/09 03:47 PM Re: BG x RES cross [Re: Bruce Condello]
CJBS2003 Offline
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 Originally Posted By: Bruce Condello
Slightly bigger yet.



That fish is gorgeous! I see hybrids get a little red on the operculum and others don't... I like how the hybrid male still gets that black color to them.

Are they able to cross back? Similar to the BG X GSF cross? Mostly male offspring when crossed?
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Men and fish are alike. They both get into trouble when they open their mouths.

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#150903 - 02/24/09 06:03 PM Re: BG x RES cross [Re: CJBS2003]
Bruce Condello Offline
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My understanding is that there are well over 90% males to the F1 generation of BG X RES.

I believe that they CAN backcross, but probably to the detriment of the overall gene pool, and definitely to the detriment of most of the F2 offspring.
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Holding a redear sunfish is like running with scissors.

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#150932 - 02/24/09 09:08 PM Re: BG x RES cross [Re: Bruce Condello]
ewest Offline
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Here are the sex ratios (percent male) that Childers got with various hybrid crosses. The male parent is listed first. There is some variation in the numbers from other studies

Redear X Bluegill 97 (3)
Bluegill X Redear 97
Redear X Green 69
Green X Redear 48
Bluegill X Green 97
Green X Bluegill 68 (2)
Redear X Warmouth 55
Bluegill X Warmouth 69 (2)
Green X Warmouth 16
Warmouth X Green 84

http://www.pondboss.com/forums/ubbthread...=true#Post22131

Bluegill and most other sunfish are colonial nesters, constructing nests in densely packed aggregations (Gross and MacMillan 1981). Different species, i.e., bluegill and redear sunfish, can frequently be found nesting together in the same colony (Childers 1967).

http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=119087&fpart=1

HYBRID SUNFISH FOR STOCKING SMALL PONDS
WILLIAM E. RICKER
Indiana University, Bloomington, Indiana

Wawasee Hatchery. Area--0.32 acre. This pond
was stocked in April 1942 with 10-15 male bluegills and an equal
number of female redears. There were apparently two principal
spawning times, which produced fish of two size groups distinct
enough to be followed through the season.

Male bluegills and female redears were put into a pond in early
spring, and the resulting spawning was at least. reasonably successful.
The number of fingerlings obtained (46,000) was said, however, to be
less than what is usually recovered from the reproduction of either of
the parent species, by itself, in a similar pond. These fish were subsequently
distributed into a number of waters.
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