COMPARISON OF INSTREAM AND LABORATORY METHODS OF MEASURING SEDIMENT OXYGEN DEMAND<sup>1</sup>

Hall, Dennis C.; Berkas, Wayne R.

doi:10.1111/j.1752-1688.1988.tb00906.x

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…Sediment samples from the top 20 centimeters of the riverbed were taken using a core sampler at each site when the in situ chambers were deployed (Hall and Berkas, 1988). The top 20 cm represent the most biologically active depositional layer in relatively slow flowing streams (Hickey, 1998).…”

Section: Sod Measurements -Ex Situmentioning

confidence: 99%

SEDIMENT OXYGEN DEMAND IN THE ARROYO COLORADO RIVER¹

Matlock¹,

Kasprzak²,

Osborn

2003

J American Water Resour Assoc

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The lower reaches of the Arroyo Colorado have historically failed to meet their use under subsection 303(b) of the U.S. Clean Water Act due to fecal coliform bacteria and low dissolved oxygen (DO). Fish kills, especially at the tidal confluence at the Port of Harlingen, Texas, have been reported. Oxygen demand from sediment (SOD) for a river typically has two states‐diffusion limited SOD (SOD) and potential SOD (pSOD), expressed when sediment is resuspended through increased flow or other disturbances. The objective of this research was to measure SOD in the Arroyo Colorado River in situ, estimate pSOD ex situ, and evaluate the relationship between SOD and the depositional environment. We measured SOD and pSOD in the Arroyo Colorado River at up to eight sites over three sampling events. We identified the sample sites based on a modified Rosgen geomorphic index for streambed stabilization. Sites with high sediment deposition potential had high SOD. The average values of SOD between sites were 0.62 g/m2/day (standard deviation 0.38 g/m2/day) and ranged from 0.13 to 1.2 g/m2/day. Potential SOD values ranged from as low as 19.2 to as high as 2,779 g/m3 sediment/ day. Potential SOD can serve as an indicator of the possible impact of SOD from resuspended sediment in stream systems.

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Section: Sod Measurements -Ex Situmentioning

confidence: 99%

SEDIMENT OXYGEN DEMAND IN THE ARROYO COLORADO RIVER¹

Matlock¹,

Kasprzak²,

Osborn

2003

J American Water Resour Assoc

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“…The utilization of oxygen by organisms or materials in the bottom material of a body of water is called sediment oxygen demand (SOD). As noted by Hall and Berkas (1988), SOD may often be a major cause of oxygen reduction in streams. In their paper, the authors use nonparametric testing to compare the performance of three measuring methods for SOD.…”

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confidence: 99%

NONPARAMETRIC APPROACHES TO ENVIRONMENTAL IMPACT ASSESSMENT¹

Hipel

1988

J American Water Resour Assoc

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The interesting developments in non‐parainetric testing and estimation methods presented in the upcoming sequence of nine papers are evaluated, compared, and put into proper perspective. Because a deterioration in water quality constitutes a direct threat to human health, it is of utmost importance to have flexible non‐parametric methods available for detecting and describing trends in water quality time series. A distinct advantage of nonparametric tests is that they are usually very effective when applied to “messy” environmental data which may, for example, contain many missing observations and not be normally distributed. By applying their enhanced approaches for nonparametric methods to water quality time series, as well as employing well designed simulation experiments, the authors of the papers clearly demonstrate the efficacy of utilizing nonparametric tests in environmental impact assessment.

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