2006
DOI: 10.2172/934797
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Assessment of Dissolved Oxygen Mitigation at Hydropower Dams Using an Integrated Hydrodynamic/Water Quality/Fish Growth Model

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Cited by 6 publications
(3 citation statements)
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“…The high mean concentrations of DO recorded at the lower sites (sites 4 -6) could be due to the self puri cation of the water along the course of the river. The absence of statistically signi cant difference in the DO levels among sites at 95% con dence level (Table 2) might be that the river owing down its course creates turbulence, which favors the dissolution of atmospheric oxygen [57]. The mean values of the present study varied within a narrower range compared with those reported previously by Degefu et al [50] and Eliku and Leta [58] for Awash River (3.62 -7.58 mg/L).…”
Section: Physico-chemical Parameterscontrasting
confidence: 60%
“…The high mean concentrations of DO recorded at the lower sites (sites 4 -6) could be due to the self puri cation of the water along the course of the river. The absence of statistically signi cant difference in the DO levels among sites at 95% con dence level (Table 2) might be that the river owing down its course creates turbulence, which favors the dissolution of atmospheric oxygen [57]. The mean values of the present study varied within a narrower range compared with those reported previously by Degefu et al [50] and Eliku and Leta [58] for Awash River (3.62 -7.58 mg/L).…”
Section: Physico-chemical Parameterscontrasting
confidence: 60%
“…This is due to the increased residence time (lower flow velocity) of the water, resulting in lower turbidity and much higher transparency (Tanos et al, 2011 ). Therefore, the dam-tailwater will have low dissolved oxygen, not because of the dam itself, but because of the ecological dynamics of the reservoir upstream of the dam (Bevelhimer and Coutant, 2006). This is generally the case in the absence of sustained photosynthetic oxygen production, because the wasteassimilating capacities of headwater ponds are often much lower than those of free-flowing upstream reaches (Butts and Evans, 1978).…”
Section: Study Areamentioning
confidence: 99%
“…The main objective of this study was to demonstrate a modeling approach that integrates the effects of flow and water quality dynamics with fish bioenergetics to predict DO mitigation effectiveness over long river segments downstream of hydropower dams (Bevelhimer and Coutant, 2006). We were particularly interested in demonstrating the incremental value of including a fish growth model as a measure of biological response.…”
Section: Water Quality Modelingmentioning
confidence: 99%