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Article
Environmental quality benchmarks—the good, the bad, and the ugly
Environmental quality benchmarks (EQBs) such as water or sediment quality guidelines comprise one line of evidence for assessing the potential harm from chemicals and other stressors (physical, biological). Th...
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Article
Negatives and Positives: Contaminants and Other Stressors in Aquatic Ecosystems
Published research is reviewed to provide examples of both positive and negative interactions of contaminants and: climate change; habitat change; invasive and introduced species; and, eutrophication including...
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Article
Total Suspended Solids Effects on Freshwater Lake Biota Other than Fish
Protective benchmarks for the effects of total suspended solids (TSS) on freshwater aquatic biota primarily focus on fish; whether these benchmarks will also protect their prey or co-existing lower trophic lev...
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Article
Sediment Contaminant Bioaccumulation: With or Without Gut Contents?
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Article
Effect of Total Dissolved Solids on Fertilization and Development of Two Salmonid Species
Some studies have shown that the early life stages of salmonids are particularly sensitive to elevated concentrations of total dissolved solids (TDS). We evaluated the effect of TDS released in treated effluen...
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Article
Tissue-based environmental quality benchmarks and standards
Although the use of tissue concentrations (residues) of chemical contaminants as the dose metric to characterize chemical toxicity to aquatic organisms has been gaining acceptance over the past 20 years, tissu...
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Article
Effects of an Oil Spill on the Regrowth of Emergent Vegetation in a Northern Alberta Lake
Following a train derailment in August 2005, Wabamun Lake (Alberta, Canada) was exposed to ~149,500 L of bunker “C” oil, much of which became entrained in the abundant Schoenoplectus tabernaemontani (= Scirpus va...
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Article
Should the Sediment Quality Triad Become a Tetrad, a Pentad, or Possibly even a Hexad?
The Sediment Quality Triad (SQT) as originally developed 20 years ago involved three lines of evidence (LOE): sediment chemistry, sediment toxicity, and benthic community structure. The first two LOE have been...
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Chapter
Using the Sediment Quality Triad (Sqt) in ecological risk assessment
The SQT has been accepted internationally as the most comprehensive approach available for assessing contaminated sediments. It has been widely used, not just in North America, but in Europe, Australasia, Sout...
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Article
Utility and relevance of aquatic oligochaetes in Ecological Risk Assessment
Ecological risk assessment (EcoRA) provides both a process and a framework to evaluate the potential for adverse ecological effects occurring as a result of exposure to contaminants or other stressors. EcoRA b...
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Chapter and Conference Paper
Utility and relevance of aquatic oligochaetes in Ecological Risk Assessment
Ecological risk assessment (EcoRA) provides both a process and a framework to evaluate the potential for adverse ecological effects occurring as a result of exposure to contaminants or other stressors. EcoRA b...
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Article
Acid Volatile Sulfides, Equilibrium Partitioning, and Hazardous Waste Site Sediments
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Article
Presentation and interpretation of Sediment Quality Triad data
Updated guidance is provided for presenting and interpreting individual Sediment Quality Triad components (Triad: chemistry, toxicity and community structure), and for the integration of all components. Three ...
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Article
Sediment quality assessment: status and outlook
This paper is a synthesis of the 44 presentations at the First International Symposium on Sediment Quality Assessment (Sweden, August 1994). The paper includes Initial Premises, Sediments, Tools (with particul...
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Article
Ecosystem health synthesis: can we get there from here?
This paper provides a synthesis of the presentations made by participants at the International Symposium on Aquatic Ecosystem Health (July 23–26, 1990, Waterloo, Ontario, Canada). A working definition of the e...
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Article
Oligochaete respiration as a measure of sediment toxicity in Puget Sound, Washington
Respiration rate measurements were conducted with the marine oligochaete Monopylephorus cuticulatus Baker and Brinkhurst to determine the sublethal toxicity of sediments collected from Puget Sound, Washington. Wo...
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Article
Hair today, gone tomorrow: induced chaetal changes in tubificid oligochaetes
Laboratory experiments were conducted to determine the extent of chaetal variation in the tubificids Tubifex tubifex and Ilyodrilus frantzi and the naidids Specaria fraseri and Nais communis under varying environ...
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Article
Acute toxicity of Roundup® and Rodeo® herbicides to rainbow trout, chinook, and coho salmon
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Article
Differentiation of physical from chemical toxicity in solid waste fish bioassays
This study showed that particulate (i.e., physical) toxicity was responsible for rainbow trout deaths in bioassays with two separate solid wastes. This conclusion was based on: (1) fish necropsies which indica...
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Chapter and Conference Paper
Oligochaete respiration as a measure of sediment toxicity in Puget Sound, Washington
Respiration rate measurements were conducted with the marine oligochaete Monopylephorus cuticulatus Baker and Brinkhurst to determine the sublethal toxicity of sediments collected from Puget Sound, Washington. Wo...