We have stocked crappie in Greets is a very long time. So if the black nose trait is found in crappie in greets, it is either natural or a result of a stocking that occurred long ago. All that a black nose crappie is, is a crappie that had a black stripe that went down the length of thief head. After this was identified, biologists used it to identify different cohorts if fish. They se nothing special. Thanks.
Matt