Habitat Characteristics of Black Crappie Nest Sites in an Illinois Impoundment

Autor: Adam M. Lohmeyer, Nicholas C. Wahl, John M. Zeigler, Quinton E. Phelps, Gregory W. Whitledge
Rok vydání: 2009
Předmět:
Zdroj: North American Journal of Fisheries Management. 29:189-195
ISSN: 1548-8675
0275-5947
Popis: Ten nest colonies of black crappie Pomoxis nigromaculatus were visually located and verified by angling in Campus Lake, a small urban impoundment in southern Illinois. Habitat characteristics were measured at these nest sites and compared to habitat measurements obtained from 45 unused sites. Seven habitat characteristics (substrate firmness, temperature, dissolved oxygen, distance to deep water [3.8-m depth contour], substrate type, vegetation height, and vegetation density) were significantly different between nest sites and unused sites. Although temperature and dissolved oxygen were significantly different between nest sites and unused sites, all values were within the suitable range for black crappie spawning to occur. Black crappies selected nest sites close to deep water with firm substrates and low vegetation height and density. Our results present insight on habitat characteristics of black crappie spawning locations in a small urban impoundment. Interestingly, we located several black c...
Databáze: OpenAIRE