Recruitment variation of crappies in response to hydrology of Tennessee reservoirs
North American Journal of Fisheries Management
By: S.M. Sammons, P.W. Bettoli, D.A. Isermann, and T.N. Churchill
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Black crappies Pomoxis nigromaculatus and white crappies P. annularis were sampled to index recruitment in seven Tennessee reservoirs (four main-stem and three tributary storage impoundments). Crappie recruitment in tributary storage impoundments appeared to be consistently higher in years of high discharge during the prespawn period (1 January-31 March). A similar relation was found in one main-stem impoundment; however, crappie recruitment in two main-stem impoundments was inversely related to discharge during the spawning period (1 April-30 May), and little recruitment variation was found in the fourth main-stem impoundment. In general, reservoir hydrology appeared to have a stronger effect on crappie recruitment in tributary storage impoundments than in main-stem impoundments, possibly because recruitment was more variable in tributary systems. Thus, it is likely that crappie populations will rarely have strong year-classes simultaneously over a wide geographic area or even within a single watershed.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Recruitment variation of crappies in response to hydrology of Tennessee reservoirs |
| Series title | North American Journal of Fisheries Management |
| DOI | 10.1577/1548-8675(2002)022<1393:RVOCIR>2.0.CO;2 |
| Volume | 22 |
| Issue | 4 |
| Year Published | 2002 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | North American Journal of Fisheries Management |
| First page | 1393 |
| Last page | 1398 |
| Google Analytic Metrics | Metrics page |