Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Masek, Jeffrey G. Advisor Jenkins, Jeffrey J. File Format application/pdf

Whole system perspective : Steelhead, Onchorhynchus mykiss, glutathione s-transferase as a biomarker of chlorpyrifos exposure

Creator:

Pecore, Rachael G.

Abstract:

Organophosphate insecticides may produce sublethal, adverse effects on salmonid growth, reproduction, maturation, swimming, and feeding. Chlorpyrifos, an organophosphate insecticide, was detected by the Oregon Department of Environmental Quality in the Hood River and tributaries during March 1999 at levels exceeding state water quality standards in the range of 0.011-0.482 μg/L....

Resource Type:

Undergraduate Thesis
Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Creator:

Johnson, Katherine R.

Abstract:

Aquatic insects are essential components of healthy stream ecosystems, contributing to nutrient cycling, trophic dynamics and other ecological functions. Aquatic insect species, particularly those in the orders Ephemeroptera, Plecoptera and Trichoptera (EPT taxa) are however, extremely sensitive to insecticide contamination. Given that urban and agricultural use of synthetic pyrethroid insecticides...

Resource Type:

Dissertation

Full Text:

: _____________________________________________________________________ Paul C. Jepson Jeffrey J. Jenkins Aquatic insects are essential components of