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Acute Toxicity and Hazard Assessment of Spinosad and R-11 to Three Cladoceran Species and Coho Salmon

Bulletin of Environmental Contamination and Toxicology volume 82, pages 549–553 (2009)Cite this article

Abstract

Acute toxicity data and hazard assessments were developed for three cladoceran species, Ceriodaphnia dubia, Daphnia pulex, and Daphnia magna, and juvenile Coho salmon, Oncorhynchus kisutch after exposure to the insecticide, spinosad and adjuvant R-11. The effect of a mixture of these compounds was also determined with C. dubia and O. kisutch. Spinosad was virtually non-toxic to O. kisutch. Hazard assessments indicated that R-11 posed no hazard to any of the species tested while spinosad only posed a hazard to C. dubia. Mixture studies indicated that spinosad and R-11 may interact synergistically in C. dubia.

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Acknowledgments

Special thanks to Maria Boroja, NOAA, Washington, DC for financial support. We are grateful to Nathaniel Scholz and Cathy Laetz, NOAA, Seattle, Washington for their help and advice with regard to Coho research. We thank Grace and Oriki Jack for technical support. We also thank Drs Allan Felsot and Carol Anelli who served as committee members for Angela Deardorff’s Master Thesis project. This project was funded in part by NOAA.

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Affiliations

  1. Ecotoxicology Program, Department of Entomology, Washington State University Puyallup Research & Extension Center, Puyallup, WA, 98371, USA

    Angela D. Deardorff & John D. Stark

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  1. Angela D. Deardorff
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  2. John D. Stark
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Correspondence to John D. Stark.

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Deardorff, A.D., Stark, J.D. Acute Toxicity and Hazard Assessment of Spinosad and R-11 to Three Cladoceran Species and Coho Salmon. Bull Environ Contam Toxicol 82, 549–553 (2009). https://doi.org/10.1007/s00128-009-9643-6

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  • DOI: https://doi.org/10.1007/s00128-009-9643-6

Keywords

  • Spinosad
  • R-11
  • Daphnia
  • Salmon
  • Mixture