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Marine Fish Cages—The Physical Environment

Published online by Cambridge University Press:  05 December 2011

A. Edwards
Affiliation:
Dunstaffnage Marine Research Laboratory, Oban.
D. J. Edelsten
Affiliation:
Dunstaffnage Marine Research Laboratory, Oban.
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Synopsis

The distributions of the four variables—temperature, salinity, currents and dissolved oxygen—are discussed with particular reference to the Scottish west coast. In fjords, the distributions are related to the sources of change—tides, freshwater runoff, winds and, in the case of currents, to friction, which makes currents very variable over small areas. Current speed in floating cages has been found less than that outside. A model of the oxygen concentration in such a cage has been used to examine the conditions of current and fish stocking density under which the cage can be operated without reaching dangerously low oxygen concentrations.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1976

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References

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