Hybridization between three species of Sunfish (BG, RES, GSF) An oldie, but a lot of interesting information. Looks like RES male x GSF female produces 70-30 male to female and F1 x F1 also high reproduction. This is the cross that works in a pond environment. The opposite cross produced mostly males, but required being done in a laboratory. The resulting F1 x F1 subsequent cross did not work in pond or lab.
So it appears if a person wants pond raised RESxGSF it can be successful and will result in a 70-30 m/f ratio of F1 that will also reproduce. If a person did not want sustainable reproduction the GSFxRES would be the preferred cross but would be required to be obtained from a hatchery where the cross is done in the laboratory. At least that is what I got from the paper if I read it right.
