Great information jpsdad! I had never heard of this species of fish. In the articles that you referenced one point stood out to me. “Effects of Alien Species
Hypothesis 9: Sacramento perch are limited by interactions with alien (non-native) centrarchids. The gradual disappearance of Sacramento perch populations when forced to co-exist with bluegill, crappie, and other sunfishes indicates that interactions are
a major cause of decline. Because adults and large juveniles of these species seem to co-exist, most interaction is likely to occur during early life history stages.”
Do you think that the SCP can be a replacement for BG in waters native to its range? The information that you provided seems to suggest no BG, BCP or other sunfish for that matter. Using LMB and/or HSB as a predator possibly? Interesting uncommon fish!