hybrid shell cracker

This fish is another hybrid to present a challenge even for the chef  ALLOTETRAPLOID_REDEAR_X_PUMPKINSEED_MALE.JPG   599KB   7 downloads. I mixed the gametes and did the cooking but not certain in what proportion ingredients came out in this cookie. It is a male and kind of pretty. So far he has not spun up for the ladies even when they are ripe. It was only one of brood (>10,000) to survive. It is a big one as made evident by fish being held in the bottom of a five gallon bucket.

Very nice fish.

Is it some sort of Redear x Pumpkinseed? I'm just going by the spotting on the side of it.

WarmouthxRedear x Bluegill?

I like the radiant scales around the eye. I'd happily cook a panfish this large.

Is it some sort of Redear x Pumpkinseed? I'm just going by the spotting on the side of it.

Yes, redear is mother and pumpkinseed is father (allo = different for hybrid). We stripped eggs from a ripe female redear, fertilized the eggs with pumpkinseed sperm yeilding an allodiploid, then just after the chromsomes replicated themselves to produce a 4N zygote (2N from redear and 2N from pumpkinseed) preparing to enter the 2-cell stage each with 2N, we applied a pressure shock for 2 minutes to stop first mitotic division. Result, most embryos failed to develop but this one continued with what we think is a 4N set of chromosomes (allotetraploid). This individual has not been test for the number of chromosome sets yet but siblings (allodiploid) not exposed to pressure shock during the first mitotic division servived as well as pure redear, are much prettier with males acquiring the black while nesting, both sexes fertile (extremely fertile), and not getting nearly as big as this beasty. This critter and the allodiploids distinguishable from allotriploid of same parentage since latter lack the spottting pattern you mention, just like the mother redear which dominates the allotriploids genetic makeup.

Yes, redear is mother and pumpkinseed is father (allo = different for hybrid). We stripped eggs from a ripe female redear, fertilized the eggs with pumpkinseed sperm yeilding an allodiploid, then just after the chromsomes replicated themselves to produce a 4N zygote (2N from redear and 2N from pumpkinseed) preparing to enter the 2-cell stage each with 2N, we applied a pressure shock for 2 minutes to stop first mitotic division. Result, most embryos failed to develop but this one continued with what we think is a 4N set of chromosomes (allotetraploid). This individual has not been test for the number of chromosome sets yet but siblings (allodiploid) not exposed to pressure shock during the first mitotic division servived as well as pure redear, are much prettier with males acquiring the black while nesting, both sexes fertile (extremely fertile), and not getting nearly as big as this beasty. This critter and the allodiploids distinguishable from allotriploid of same parentage since latter lack the spottting pattern you mention, just like the mother redear which dominates the allotriploids genetic makeup.

That's a good looking fish. Do you or anyone else have any pictures of these Sunfish in aquariums? They're very attractive and it's a shame they're so unpopular in America as aquarium fish.
Are you hybridizing them for commercial purposes? Or just a hobby?

That's a good looking fish. Do you or anyone else have any pictures of these Sunfish in aquariums? They're very attractive and it's a shame they're so unpopular in America as aquarium fish.
Are you hybridizing them for commercial purposes? Or just a hobby?

Research and if works as hoped, then commercially. Trying to make truely sterile production animals.