Here is the link to Crappie (including black crappie)in ponds. A lot there.

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=92447#Post92447

I would not put crappie in a pond unless I was managing for them like the SEP note in the archives (FH , tshad , crappie and HSB IIRC) and it was a larger pond (15 acres).