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XII.—A Survey of Clyde Plankton

Published online by Cambridge University Press:  15 September 2014

Sheina M. Marshall
Sheina M. Marshall
Affiliation:
Millport Marine Biological Station
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Extract

The tow-nettings on which this survey is based were taken mostly from Keppel Pier. The tide as a rule runs down the channel strongly for several hours after high water, and the current is sufficiently strong to hold out the tow-nets more or less horizontal. Owing to some peculiarity in the configuration of the sea-floor at Keppel, the downward current is much the stronger and often begins an hour or several hours before high water. The flood-tide is never strong enough nor constant enough to hold out a tow-net for any length of time, and so most of the observations are based on tow-nettings taken on the ebb. Tow-nettings were taken almost every day and the tow-nets were usually left out for an hour.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 45 , Issue 2 , 1926 , pp. 117 - 141
Copyright
Copyright © Royal Society of Edinburgh 1926

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References

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