Oxygen consumption by freshwater sediments

Brewer, William S.; Abernathy, A.R.; Paynter, M. J. B.

doi:10.1016/0043-1354(77)90090-2

Cited by 40 publications

(7 citation statements)

References 3 publications

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“…The winter oxygen depletion rate (WODR) primarily determines if winterkill will occur and at what rate oxygen must artificially be added as a preventative measure. Most of the winter oxygen consumption occurs in the sediment surface layer (oxidized microzone) and to a lesser extent in the water column as a result of bacterial respiration and chemical oxidation (Brewer et al, 1977;Greenbank, 1945;Hargrave, 1969;Hargrave, 1972;Mathias and Barica, 1980). Fish contribute minimally to winter oxygen depletion and in the case of winterkill are only the unfortunate victims of the consequences of eutrophication which tends to enrich sediments with oxidizable organic materials.…”

Section: Limnology Of Ice Covered Lakesmentioning

confidence: 99%

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹

Ellis¹,

Stefan

1989

J American Water Resour Assoc

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Winterkill, the death of fish under ice due to oxygen deficiency, threatens hundreds of shallow lakes in the upper Midwest of the United States every winter. For decades, attempts have been made to prevent winterkill, usually through aeration, with mixed results. In large part, the failure of strategies to prevent winterkill can be linked to a lack of understanding of winter limnology and in particular, of oxygen dynamics under ice. Most winterkill lakes behave as closed systems with regard to oxygen. Consequently, the oxygen content of an ice and snow covered lake is essentially a function of the amount of initial storage and the rate of depletion. Should the stored oxygen be insufficient to prevent near anoxia before melting of the ice cover occurs, winterkill will result. Most oxygen consumption in ice covered lakes is due to bacterial respiration and chemical oxidation at the sediment/water interface, the remainder occurring in the water column. Oxygen consumption (and thus depletion) is a function of the velocity and oxygen concentration of the near sediment water. This is due to the fact that oxygen transport to the sediment is mediated by a diffusive boundary layer adjacent to the sediment surface. Winter oxygen depletion rates decrease when the oxygen concentration of the overlying water falls below about 3 mg/l. Aeration techniques which increase the oxygen concentration and velocity of the near‐sediment water also increase the oxygen consumption (depletion) rate.

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Section: Limnology Of Ice Covered Lakesmentioning

confidence: 99%

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹

Ellis¹,

Stefan

1989

J American Water Resour Assoc

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“…A third method used to infer the importance of sediments in winter oxygen depletion is the respiration rate of sediment cores, or in situ measurement of sediment oxygen consumption using flux chambers embedded in the lake bed (Hargrave 1969(Hargrave , 1972aBrewer et al 1977).…”

Section: Strongmentioning

confidence: 99%

A review of winterkill remediation techniques for Alberta /

Schwalme¹

1994

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Winter Oxygen Requirements of Freshwater Gamefish 3.4 Behavioural Responses of Fish to Oxygen Gradients 27 3.5 Summary 4 WINTERKILL REMEDIATION 4.1 Snow Clearing 4.2 Compressed Air Injection 31 4.3 Mechanical Surface Aeration 4.4 Pump and Cascade Aeration 4.5 Ice-preserving/Non-mixing Aeration iii 4.6 Downflow Bubble Contact Aeration 45 4.7 Hypolimnetic Aeration 4.8 Sizing Methods for Lake Aeration 4.9 Review of Lake Aeration in Alberta 4.10

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“…When simulating DO consumption within the sediment, these processes are usually lumped together into an apparent overall reaction rate following zero-order, first-order, or Monod kinetics. , Prior studies have investigated the transport of DO in the sediment by fitting these kinetic models to DO microprofiles or by measuring DO depletion rates in the water column above the sediment in different types of aquatic systems to calculate J O2 and estimate a rate constant. Brewer et al tracked DO concentrations in water above a dredged sediment sample in laboratory incubations, assuming that DO consumption in the sediment followed first-order kinetics. Likewise, Beutel et al monitored DO depletion in sediment core incubations to calculate J O2 , also assuming first-order kinetics.…”

Section: Introductionmentioning

confidence: 99%

Improved Modeling of Sediment Oxygen Kinetics and Fluxes in Lakes and Reservoirs

Man

Bierlein

Lei

et al. 2020

Environ. Sci. Technol.

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To understand water quality degradation during hypoxia, we need to understand sediment oxygen fluxes, the main oxygen sink in shallow hypolimnia. Kinetic models which integrate diffusion and consumption of dissolved oxygen (DO) in sediments usually assume a downward flux of DO from the sediment-water interface (SWI) with a zero-flux condition at the lower boundary of the oxic sediment layer. In this paper, we separately account for the oxidation of an upward flux of reduced compounds by introducing a negative flux of DO as a lower boundary condition. Using in situ measurements in two lakes, kinetic models were fit to DO microprofiles using zero-order and firstorder kinetics with both zero and non-zero lower boundary conditions. Based on visual inspection and goodness-of-fit criteria, the negative-flux lower boundary condition,-0.25g O 2 m-2 d-1 , was found to more accurately describe DO consumption kinetics. Fitted zero-order rate constants ranged from 50-510 mg L-1 d-1 and first-order rate constants ranged from 60-400 d-1 , which agree well with prior laboratory studies. DO fluxes at the SWI calculated from the simulated

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Oxygen consumption by freshwater sediments

Cited by 40 publications

References 3 publications

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹

A review of winterkill remediation techniques for Alberta /

Improved Modeling of Sediment Oxygen Kinetics and Fluxes in Lakes and Reservoirs

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Oxygen consumption by freshwater sediments

Cited by 40 publications

References 3 publications

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION1

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION1

A review of winterkill remediation techniques for Alberta /

Improved Modeling of Sediment Oxygen Kinetics and Fluxes in Lakes and Reservoirs

Contact Info

Product

Resources

About

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹

OXYGEN DEMAND IN ICE COVERED LAKES AS IT PERTAINS TO WINTER AERATION¹