Abstract
The effect of light intensity on rate of photosynthesis was measured at irregular intervals over a 12-month period for 22 benthic marine algae in the western Baltic Sea. In most species photosynthesis (mg O2·g dry weight-1·h-1) was highest in spring and summer, corresponding to the seasonal growth pattern of the algae. In winter all the species showed adaptation of the light compensation point. Highest productivity was shown by algae which are: short-lived annual species rather than perennials, eulittoral rather than sublittoral, and which possess sheet-like or filamentous thalli rather than coarsely branched forms. These factors are clearly inter-related.
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Communicated by G.F. Humphrey, Sydney
This research was carried out while one of us (R.J.K.) was an Alexander von Humboldt fellow at the University of Kiel, and is part of the programme “Sonderforschungsbereich 95, Wechselwirkung Meer-Meeresboden, Universität Kiel”.
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King, R.J., Schramm, W. Photosynthetic rates of benthic marine algae in relation to light intensity and seasonal variations. Mar. Biol. 37, 215–222 (1976). https://doi.org/10.1007/BF00387606
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DOI: https://doi.org/10.1007/BF00387606