Analysis of summer phosphorus fluxes within the pelagic zone of Eau Galle Reservoir, Wisconsin
Lake and Reservoir Management
By: W.F. James and J.W. Barko
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Abstract
Major phosphorus (P) fluxes to and from the pelagic zone (i.e., open water region including epilimnion, metalimnion, and hypolimnion) were estimated from data collected over a 6 year period during the summer in Eau Galle Reservoir, Wisconsin. P inputs to the pelagic zone included profundal sediments, the watershed, groundwater, and transport of P from the littoral zone. P outputs from the pelagic zone included discharge from the reservoir, deposition, and transport of P to the littoral zone. Nighttime convective circulation was assumed to be the dominant mechanism of P exchange between the littoral and pelagic zones. Littoral P inputs, often neglected from budgetary analyses, accounted for 15% of the total measured P input and 25% of the internal P input to the pelagic zone. External P inputs were greatest, accounting for 42% of the total measured P input to the pelagic zone. These results emphasize the need for control of various sources of P inputs in the development of lake and reservoir management strategies.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Analysis of summer phosphorus fluxes within the pelagic zone of Eau Galle Reservoir, Wisconsin |
| Series title | Lake and Reservoir Management |
| Volume | 8 |
| Issue | 1 |
| Year Published | 1993 |
| Language | English |
| Contributing office(s) | Upper Midwest Environmental Sciences Center |
| Description | pp. 61-66 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Lake and Reservoir Management |
| First page | 61 |
| Last page | 66 |
| Google Analytic Metrics | Metrics page |