Stream profile determinations using microbial activity assays and <i>Ceriodaphnia</i>

Burton, G.A.; Nimmo, Del Wayne R.; Murphey, D.; Payne, F.

doi:10.1002/etc.5620060703

Cited by 15 publications

(2 citation statements)

References 16 publications

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“…(Ceriodaphnia dubia). The procedures for these tests are described in Weber et al (1989); examples of the use of these test procedures for ambient assessments can be found in Burton et al (1987), ), Nimmo et al (1990, NorbergKing et al (1991), Kszos and Taylor (1992a), Stewart and Loar (1990), and Stewart, unpublished data. Toxicity tests with fathead minnow larvae and Ceriodaphnia were conducted concurrently in almost every case.…”

Section: Eventmentioning

confidence: 99%

Report on the biological monitoring program for Bear Creek at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, 1989-1994

Hinzman¹,

Beauchamp²,

Cada³

et al. 1996

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Section: Eventmentioning

confidence: 99%

Report on the biological monitoring program for Bear Creek at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, 1989-1994

Hinzman¹,

Beauchamp²,

Cada³

et al. 1996

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“…These findings show that the results of C. dubia "toxicity" tests must be considered carefhlly if they are to provide meaningful information about water quality in ambient applications. Examples of the use of C. dubia tests to assess ambient water quality are provided by Burton et al (1987), Nimmo et al (1990), Stewart et al (1990), Norberg-King et al (1991), , and Stewart et al (1994).…”

Section: Ceriodaphnia Dubia Survival and Reproduction Testsmentioning

confidence: 99%

Ecological effects of contaminants in McCoy Branch, 1989-1990

Ryon¹

1992

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Ambient toxicity dynamics: Assessments using Ceriodaphnia dubia and fathead minnow (Pimephales promelas) larvae in short‐term tests

Stewart

Kszos

Harvey

et al. 1990

Enviro Toxic and Chemistry

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Seven‐day‐static‐renewal tests with fathead minnow larvae (Pimephales promelas) and Ceriodaphnia dubia were conducted monthly and results were used to assess spatiotemporal patterns in toxicity at 15 sites in five streams that receive discharges from the Oak Ridge National Laboratory (ORNL). The stream‐water samples were also analyzed for pH, conductivity, alkalinity, hardness and total residual chlorine (TRC). Relationships between the ambient toxicity test results and the chemical data were evaluated by (a) examining correlations between the two data sets across all site‐test combinations and (b) principal components analyses (PCA). These approaches proved to be more appropriate than procedures typically used to evaluate effluent toxicity (e.g., analysis of variance followed by Dunnett's test or Fisher's exact test). On average, P. promelas growth and C. dubia fecundity differed little from site to site, but survival of the two species varied greatly from test to test at some sites. Mean survival and its site‐specific C.V. were inversely related both for C. dubia and P. promelas (r = ‐0.857 and ‐0.810, respectively), and the slope of this relationship was greater for C. dubia than it was for P. promelas. Thus, (a) mortality patterns for both test species suggested that episodic events controlled overall patterns in ambient toxicity and (b) the C. dubia test appeared to be more sensitive than the P. promelas test. PCA identified two water quality factors (axis I, associated with hardness–conductivity, and axis II, strongly associated with TRC) that accounted for 60.5 and 17.6%, respectively, of the total variance in the chemical data. Multiple regression analyses of toxicity test response variables in relation to the two PCA factors showed that C. dubia survival was linked to axis II (p = 0.001) but not to axis I (p = 0.10). C. dubia fecundity was linked significantly to both (p = 0.011 and p = 0.019 for axes I and II, respectively). Neither survival nor growth of P. promelas was linked statistically to either axis. Occurrence‐frequency distributions for TRC showed that concentrations high enough to kill either species were exceeded, on average, twice monthly at sites where survival of C. dubia and P. promelas tended to be low. Thus, TRC, which enters ORNL streams primarily as drinking water used in once‐through cooling systems, was implicated as a toxicant governing the ambient toxicity test outcomes.

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Stream profile determinations using microbial activity assays and Ceriodaphnia

Cited by 15 publications

References 16 publications

Report on the biological monitoring program for Bear Creek at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, 1989-1994

Report on the biological monitoring program for Bear Creek at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, 1989-1994

Ecological effects of contaminants in McCoy Branch, 1989-1990

Ambient toxicity dynamics: Assessments using Ceriodaphnia dubia and fathead minnow (Pimephales promelas) larvae in short‐term tests

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