Spotfin shiners will behave basically the same in all ponds not just Indiana.
1. Spotfin will not grow as big as golden shiners. Spotfin(SFS) maximum length will be about 5 inches whereas GSH can easily grow to 8" and sometimes 10".

2. Spotfin due to their smaller size are as not as bad of bait stealer as GSH.

3. Spotfin spawn completely differently compared to GSH.

4. Spotfin are crevice spawners whereas GSH scatter eggs in very shallow water near shore vegetation.

5. Both GSH and SFS eat fish food very well.

6. Both are very prolific.

7. SFS have a longer spawning season than GSH.

8. SFS are probably do not eat as many fish eggs compared to GSH.

9. SFS are not reported to have the egg suppression parasite common to GSH.

10. SFS due to their smaller adult size will not tolerate as much big fish predation as GSH.

11. Both SFS and GSH probably have the same water quality requirements.

12. Both are rapid, very active swimmers and size for size have about the same predator avoidance ability.

I could write at least page of information about very one of the above topics.

GSH and Spotfin have their own niche, similar to FHM and BNM being similar and closely related have their own niche and specific benefits in the pond habitat for a sport fishery. Different types of fisheries have different requirements based on the specie of fish.