Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Inhibition of Photosynthesis in Porphyra perforata by Trace Metals
Student Author(s): Balfour, Morris
Pages: 25
Location: Final Papers Biology 175H
Date: June 1971
Keywords: marine pollution
Abstract: Inorganic copper and mercury, at concentrations as low as a half part per million in sea water, reduced photosynthesis in samples of Porphyra perforata. Similar effects were observed in phytoplankton using even lower concentrations of copper in solution. Neither the mercuric or cupric ions indicated and any effects on plant respiration nor any signs of synergistic action as inhibitors of photosynthesis in Porphyra