Anomalous yellow perch

[JBmossback]

One of the yellow perch I caught a few days ago was not like the others. Instead of the normal white-colored flesh, it was yellow-colored. Only one of them was like this. It did not smell bad, but it is noticeably different that the other fillets.
Has anyone encountered this before?

[FishingFredrik]

One of the yellow perch I caught a few days ago was not like the others. Instead of the normal white-colored flesh, it was yellow-colored. Only one of them was like this. It did not smell bad, but it is noticeably different that the other fillets.
Has anyone encountered this before?

No way!?

[Iceassin]

About the only thing I could find that it's possible the meat became tainted by a busted gall bladder. 

[aza10]

One of the yellow perch I caught a few days ago was not like the others. Instead of the normal white-colored flesh, it was yellow-colored. Only one of them was like this. It did not smell bad, but it is noticeably different that the other fillets.
Has anyone encountered this before?

I know other fish can have color changes based on diet and food source.  I'm not sure if effects perch but for example trout eat scuds, ingest astaxanthin, excess astaxanthin is stored in the muscle tissue which can turn the meat orange or pink.  it can be found in scuds and crustaceans.  maybe your perch was on strict crawdad/fish diet.  I personally have never seen it in perch though.