Abstract
AT the recent meeting of the Australian and New Zealand Association for the Advancement of Science, it was stated by Prof. Dakin that plankton studies in New South Wales waters had shown a distinct diatom maximum in the spring, followed by a smaller maximum in the autumn. These conditions presented an interesting and close parallel with those so well known in the temperate waters of Europe. In further agreement a scarcity of plankton is recorded during the winter months and the planktonic Crustacea—Copepoda and Cladocerarise—to maxima in the early summer following the diatom and dinoflagellate maxima. The variations in the abundance of plankton during the year do not seem to be anything like so great as in the Irish Sea or English Channel, and it would almost appear as if the phosphate and nitrate concentrations in the sea water were also more uniform. The study of the relation between the seasonal rhythm of the plankton and changes in the physico-chemical environment is to be continued, whilst particular attention will be paid to the occurrence of fish eggs and larvæ.
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Seasonal Plankton Rhythm. Nature 130, 840 (1932). https://doi.org/10.1038/130840a0
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DOI: https://doi.org/10.1038/130840a0