White Crappie

White crappies are morphologically similar to black crappies (Pomoxis nigromaculatus). They have 5–10 dark vertical bars along their bodies, rather than randomly scattered spots like those of the black crappie. The white crappie has a silvery color with green or brown shades along its back, with dark lateral bars along its side, and a white belly. The dorsal fins of the white crappie start farther back on the body than those of the black crappie. The anal fin is about the same size as the dorsal fin. The white crappie has six dorsal fin spines, whereas the black crappie has seven or eight dorsal fin spines. White crappies are also slightly more elongated than black crappies. The white crappie is a deep-bodied fish with a flattened body, or a depth that is one-third of the length of the fish. White crappies have spinous rays and ctenoid fish scales found in advanced teleosts.

White crappies are native to the Great Lakes, Hudson Bay, and the Mississippi River basins expanding from New York and southern Ontario westward to South Dakota and southward to Texas. This species has a large geographic range in the United States and currently has a stable population. Currently, this species is listed as a least concern species for conservation efforts.

White crappies are neither cruise- nor ambush-feeding strategists. Instead, they swim intermittently and only search for prey when stationary. This strategy is considered saltatory, or pause-and-travel search. Using this strategy, juveniles can grow rapidly in the first few days of life. This strategy is energetically favored to reduce search time for the species. White crappies in the larval and juvenile stages of life eat zooplankton and continue to feed primarily on small invertebrates during their first year of life.

White crappies spawn in May and June when the water temperature reaches 56 °F (13 °C). Males construct nests by creating small, bowl-shaped depressions on the bottom around brush, rocks, and logs in the shallow water. During the spawning season, males develop dark coloration on their throats. Females lay 5,000 to 30,000 eggs. The males guard these nests until the fry swim away. Males guard these nests because it helps ensure the success of their genes being passed on to the next generation. The white crappie typically grows 3–5 inches (7.6–12.7 cm) within the first year of its life and can grow an additional 3–4 inches in the second year. The white crappies reach maturity around their second or third year. The maximum lifespan of white crappies is 8 to 10 years with the average lifespan being 3 to 4 years in unmanaged waters and 6 years in managed waters.