Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: An investigation of the effects of the herbicide Picloram on photosynthesis and respiration in the natural phytoplankton community of Monterey Bay, California
Student Author(s): Schultz, Sandra
Pages: 22
Location: Final Papers Biology 175H
Date: June 1969
Keywords: DDT
Abstract: Studies were made of the effects of Picloram at various concentrations on whole water samples and cultures established from tows from Monterey Bay, California, using the C-14 and oxygen light/dark bottle techniques. The reate of net photosynthesis was depressed approximately 10% by a herbicide concentration of one part per million by weight and 89% by a herbicide concentration of one hundred parts per million by weight. No significant effects of the herbicide on respiration was detected at these concentrations.