Hey guys.  Recently caught a nice pile of crappies from a river system near me.  When cleaning them, i noticed the meat was very firm.  I usually dont fish for them because all the crappies i have ever caught prior had soft "mushy" meat and i didnt care for the texture.  I was thinking perhaps these river fish that have pushed up a long way from the lake they hang out in the rest of the year, have "toned up" (for lack of a better term).  Anyone else have any experience with this?