Measuring, Stimulating and Utilizing Marine Productivity

  • E. J. Ferguson Wood


A variety of methods have been tried for estimating primary production, or annual production of plant material in the sea. Dr. Harvey of Plymouth suggested that as all plants contain chlorophyll and animals do not, measuring chlorophyll would be a good way of estimating phytoplankton abundance.1(Phytoplankton cannot be physically separated from zooplankton and weighed.) He extracted the chlorophyll from water samples and measured it in an ingenious instrument he had designed himself. However, the assumption that all the marine plants contain the same amount of chlorophyll relative to the weight of living material in them cannot really be accepted, so the method gives only approximate results.


Geiger Counter Radioactive Carbonate Atoll Lagoon Shallow Bank Marine Fish Farm 
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© E. J. Ferguson Wood 1975

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  • E. J. Ferguson Wood

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