Incidence of Stress in Benthic Communities Along the U.S. Atlantic and Gulf of Mexico Coasts within Different Ranges of Sediment Contamination from Chemical Mixtures

Hyland, Jeffrey L.; Balthis, W. Leonard; Engle, Virginia D.; Long, Edward R.; Paul, John F.; Summers, J. Kevin; Dolah, Robert F. Van

doi:10.1007/978-94-017-0299-7_14

Cited by 31 publications

(48 citation statements)

References 12 publications

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“…It is noteworthy that laboratory tests of amphipod survival were less sensitive than several metrics of benthic community composition in Puget Sound and in southeastern US estuaries (Hyland et al 1998(Hyland et al , 2003. In both regions, significant decreases in the abundance of relatively sensitive benthic taxa occurred in samples that were not toxic to amphipods.…”

Section: Discussionmentioning

confidence: 96%

“…Matching sediment chemistry and benthic data from southeastern US estuaries were examined to identify adverse benthic effects over ranges in mSQGq (Hyland et al 2003). The latter study demonstrated that adverse benthic effects occurred in estuarine samples that were not toxic to amphipods and provided possible explanations for these observations.…”

Section: Derivation Of Mean Sqg Quotientsmentioning

confidence: 99%

“…Following the basic methods and terminology of Hyland et al (2003), multiple steps were taken to establish the cut points (i.e., ''thresholds) in mSQSq. The intent was to find an initial cut point below which results of the toxicity tests and the benthic indices indicated the lowest incidence and degree of effects and higher cut points that showed incremental increases in effects.…”

Section: Data Analysesmentioning

confidence: 99%

“…These steps were pursued in ''co-occurrence analyses'' (Long et al 1995;Hyland et al 2003) of the matching chemical and biological data. Co-occurrence analyses can take into account and illustrate the nonlinear model of responses that commonly occurs as stresses to the benthos increase in sediment (Pearson and Rosenberg 1978;Swartz et al 1986;Thompson and Lowe 2004).…”

Section: Data Analysesmentioning

confidence: 99%

“…Evaluations of matching mERMq and benthic assemblage data from the Virginia, Carolina, and Louisiana estuarine provinces showed a pattern of increasing incidence of adverse effects with increasing contamination in samples that were not toxic in amphipod survival tests (Hyland et al 2003). In the 3 provinces in order, the incidence of degraded benthos was lowest (i.e., 9%, 7%, 30%) in samples with mERMq of less than or equal to 0.022, less than or equal to 0.018, and less than or equal to 0.013, respectively.…”

Section: Comparisons With Previous Evaluations Of Adverse Benthic Effmentioning

confidence: 99%

See 4 more Smart Citations

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Long

Dutch

Partridge

et al. 2012

Integr Envir Assess & Manag

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The Washington State Department of Ecology annually conducts sediment quality monitoring in Puget Sound as a component of the Puget Sound Ecosystem Monitoring Program. Sediment samples are analyzed to determine the concentrations of about 170 chemical and physical variables. A Sediment Chemistry Index (SCI) was derived using the State of Washington Sediment Management Standards to account for the presence and concentrations of mixtures of toxicants. Mean Sediment Quality Standard quotients (mSQSq) were calculated as the basis for the SCI and compared to the incidence and degree of toxicity in laboratory tests and to metrics of the diversity and abundance of resident benthic assemblages in a database consisting of as many as 664 samples. These data were evaluated with co-occurrence analyses to identify ''cut points'' (i.e., thresholds) in the index below which the frequency and magnitude of biological effects were relatively low and above which they occurred with increasing frequency or magnitude. Iterative trials of different sets of cut points established the final cut points in mSQSq of 0.1, 0.3, and 0.5. They defined 4 ranges in chemical exposure: Minimum (<0

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Section: Discussionmentioning

confidence: 96%

Section: Derivation Of Mean Sqg Quotientsmentioning

confidence: 99%

Section: Data Analysesmentioning

confidence: 99%

Section: Data Analysesmentioning

confidence: 99%

Section: Comparisons With Previous Evaluations Of Adverse Benthic Effmentioning

confidence: 99%

See 3 more Smart Citations

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Long

Dutch

Partridge

et al. 2012

Integr Envir Assess & Manag

View full text Add to dashboard Cite

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Sediment quality in near coastal waters of the Gulf of Mexico: Influence of Hurricane Katrina

Macauley

Smith

Harwell

et al. 2010

Enviro Toxic and Chemistry

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The results of the present study represent a synoptic analysis of sediment quality in coastal waters of Lake Pontchartrain and Mississippi Sound two months after the landfall of Hurricane Katrina. Posthurricane conditions were compared to prehurricane (2000-2004) conditions, for sediment quality data. There were no exceedances of effects range median (ERM) sediment quality guideline values for chemical contaminants in any of the sediment samples collected from the Lake Pontchartrain or the Mississippi Sound study areas following the hurricane. Lower threshold effects range low (ERL) values were exceeded for As, Cd, and Ni at several stations in both survey areas, similar to levels of contamination observed prior to the hurricane. The comparison of sediment quality indicators before and after the hurricane suggests considerable stability of these systems with respect to short-term ecological impacts. Although other studies have shown storm-related changes could be detected (e.g., effects on benthic communities associated with shifts in salinity), there were no indications of widespread sediment contamination.

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Assessing contaminated sediments in the context of multiple stressors

Burton

Johnston

2010

Enviro Toxic and Chemistry

144

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Abstract-Sediments have a major role in ecosystem functioning but can also act as physical or chemical stressors. Anthropogenic activities may change the chemical constituency of sediments and the rate, frequency, and extent of sediment transport, deposition, and resuspension. The importance of sediments as stressors will depend on site ecosystem attributes and the magnitude and preponderance of co-occurring stressors. Contaminants are usually of greater ecological consequence in human-modified, depositional environments, where other anthropogenic stressors often co-occur. Risk assessments and restoration strategies should better consider the role of chemical contamination in the context of multiple stressors. There have been numerous advances in the temporal and spatial characterization of stressor exposures and quantification of biological responses. Contaminated sediments causing biological impairment tend to be patchy, whereas more pervasive anthropogenic stressors, such as alterations to habitat and flow, physical disturbance, and nutrient addition, may drive large-scale ecosystem responses. A systematic assessment of relevant ecosystem attributes and reference conditions can assist in understanding the importance of sediments in the context of other stressors. Experimental manipulations then allow for the controlled study of dominant stressors and the establishment of causal links. This approach will result in more effective management of watersheds and waterways. Environ. Toxicol. Chem. 2010;29:262529: -264329: . # 2010

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Incidence of Stress in Benthic Communities Along the U.S. Atlantic and Gulf of Mexico Coasts within Different Ranges of Sediment Contamination from Chemical Mixtures

Cited by 31 publications

References 12 publications

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Sediment quality in near coastal waters of the Gulf of Mexico: Influence of Hurricane Katrina

Assessing contaminated sediments in the context of multiple stressors

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