T
Tracy K. Collier
Researcher at National Oceanic and Atmospheric Administration
Publications - 126
Citations - 9199
Tracy K. Collier is an academic researcher from National Oceanic and Atmospheric Administration. The author has contributed to research in topics: English sole & Oncorhynchus. The author has an hindex of 48, co-authored 125 publications receiving 8415 citations. Previous affiliations of Tracy K. Collier include University Corporation for Atmospheric Research & National Marine Fisheries Service.
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Defects in cardiac function precede morphological abnormalities in fish embryos exposed to polycyclic aromatic hydrocarbons.
TL;DR: Different PAH compounds have distinct and specific effects on fish at early life history stages, and the relative toxicity of the different mixtures was directly proportional to the amount of phenanthrene, or the dibenzothiophene-phenanthrene total in the mixture.
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Environmental effects of the Deepwater Horizon oil spill: A review.
TL;DR: Research demonstrates that oiling caused a wide range of biological effects, although worst-case impact scenarios did not materialize, and certain impacts are still understudied, such as effects on seagrass communities.
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Aryl Hydrocarbon Receptor–Independent Toxicity of Weathered Crude Oil during Fish Development
John P. Incardona,Mark G. Carls,Hiroki Teraoka,Catherine A. Sloan,Tracy K. Collier,Nathaniel L. Scholz +5 more
TL;DR: Using zebrafish embryos, blockade of AhR pathway components with antisense morpholino oligonucleotides demonstrated that the key developmental defects induced by weathered crude oil exposure are mediated by low-molecular-weight tricyclic PAHs through AhR-independent disruption of cardiovascular function and morphogenesis.
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Developmental toxicity of 4-ring polycyclic aromatic hydrocarbons in zebrafish is differentially dependent on AH receptor isoforms and hepatic cytochrome P4501A metabolism
TL;DR: Three tetracyclic PAHs (pyrene, chrysene, and benz[a]anthracene) activate the AHR pathway tissue-specifically to induce distinct patterns of CYP1A expression, indicating that current models of PAH toxicity in fish are greatly oversimplified and that individual PAH's are pharmacologically active compounds with distinct and specific cellular targets.
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The synergistic toxicity of pesticide mixtures: implications for risk assessment and the conservation of endangered Pacific salmon.
Cathy A. Laetz,David H. Baldwin,Tracy K. Collier,Vincent R. Hebert,John D. Stark,Nathaniel L. Scholz +5 more
TL;DR: Single-chemical risk assessments are likely to underestimate the impacts of these insecticides on salmon in river systems where mixtures occur, and mixtures of pesticides that have been commonly reported in salmon habitats may pose a more important challenge for species recovery than previously anticipated.