A field method for measuring "exposure" by means of plaster balls: a preliminary account
In: Sarsia. University of Bergen. Universitetsforlaget: Bergen. ISSN 0036-4827; e-ISSN 1503-1128, more
Also appears in:Brattström, H.; Matthews, J.B.L. (Ed.) (1968). The Importance of Water Movements for Biology and Distribution of Marine Organisms: 2nd European Symposium on Marine Biology, Bergen 24-28 August 1967. European Marine Biology Symposia, 2. Sarsia, 34. 398 pp., more
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Keywords |
Properties > Biological properties > Tolerance > Exposure tolerance Marine/Coastal |
Abstract |
Ecologists often lack a method of measuring turbulent water motion ("exposure"). Using the loss of weight of fixed plaster of Paris balls as a quantitative expression of the water motion, an attempt to map the “exposure” of a lentic locality is presented. The balls were calibrated in a flow canal at different velocities and temperatures. |
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