Astudy was made on the growth and survival rates, sex ratios, and vulnerability to angling ofthe green sunfish redear sunfish ( (G X R) hybrid as compared with its reciprocal cross and parental species. The G x R hybrid had the highest mean annual absolute growth rate while the redear sunfish 0 X green sunfish C; (R x G) hybrid had the highest mean annual relative growth rate. The G x R hyhrid generally had the highest mean annual survival rate, while the green sunfish had the lowest. The sex ratios were: G x R hybrids. 99% males; R x G hybrids. 88% males; green sunfish. 83% males; andredearsunfish. 45% males. TheG x Rbybrid. R x G hybrid. and green sunfish were more vulnerable to angling than the redear sunfish. Abundant F2 offspring were observed in the pond containing pairs of R X C hybrids, while no F2 offspring were observed in the pond containing pairs of G X R hybrids.
