Heavy metal tolerance of marine phytoplankton. III. Combined effects of copper and zinc ions on cultures of four common species |
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| Authors: | Gudmund Skjåk Bræk Arne Jensen Åge Mohus |
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| Institution: | Institute of Marine Biochemistry, University of Trondheim, Trondheim, Norway;Nordland Regional College, Bodø, Norway |
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| Abstract: | The combined effects of copper and zinc ions on the growth of three marine diatoms and one dinoflagellate in culture have been studied. The two metals were found to act synergistically to all algae except Phaeodactylum tricornutum Bohlin. With this species an antagonistic effect was observed. Addition of zinc ions reduced the inhibition of growth caused by the more toxic copper ions. Zinc toxicity to this alga increased at low concentration of magnesium, indicating a common route for divalent metal ions in general. |
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