FYI hybrid crappie will reproduce. I would avoid crappie in your situation. More info is working on hybrid crappie in ponds.

From the American Fisheries Society


Survival, Age-0 Abundance, and Growth of Black
Crappie and Hybrid Crappie in 0.1-ha Earthen
Ponds
Brandon M. Baumhoer & Anita M. Kelly
North American Journal of Fisheries Management, 36:3, 447-451, DOI: 10.1080/02755947.2015.1135215


Abstract
Crappie Pomoxis spp. are a popular sportfish in the United
States; many private pond owners would like to stock crappie,
but crappie display inconsistent reproduction, which can lead to
overpopulation and result in a stunted population. Crappie with
limited reproduction would be an attractive management option
for minimizing overpopulation. An experiment was conducted to
measure survival, abundance of age-0 offspring, and growth of
Black Crappie and hybrid crappie (female Black Crappie
P. nigromaculatus × male White Crappie P. annularis) in small
impoundments. Sixteen unfertilized 0.1-ha ponds were stocked
with Black Crappie or hybrid crappie. Half of the ponds with
Black Crappie and hybrid crappie were also stocked with
Largemouth Bass Micropterus salmoides and Bluegill Lepomis
macrochirus, and all ponds were stocked with Fathead Minnow
Pimephales promelas as supplemental forage. In September 2013,
ponds were harvested and drained; weight and lengths were
recorded from all adult Black Crappie and hybrid crappie, and
all age-0 Black Crappie and hybrid crappie were counted and
recorded. Adult survival rates did not differ among groups
(F = 0.72, df = 2, P = 0.5059), ranging from 25% to 58%.
Predation and increased competition with other centrarchids
may be a function of adult Black Crappie and hybrid crappie
survival. The number of age-0 fish recovered from each pond was
highly variable and ranged from 0 to 52,162 individuals, with no
significant differences observed among the groups with and without
predators (F = 3.73, df = 2, P = 0.0524). Hybrid crappie were
significantly heavier (F = 14.36, df = 2, P = 0.0011) and longer
(F = 8.45, df = 2, P = 0.0071) than Black Crappie. Growth rates
for hybrid crappie were higher than any previously documented
research of individual crappie species. High densities of Fathead
Minnow for forage may explain the high growth rates. Hybrid
crappie may be a viable alternative for stocking in small impoundments, but further investigation of the long-term success of stocked hybrid crappie is warranted.


Last edited by ewest; 07/01/16 10:58 AM.