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Studies on a Calanus Patch IV. Nutrient salts off the north-east coast of england in the spring of 1954

Published online by Cambridge University Press:  11 May 2009

D. H. Cushing  and
H. F. Nicholson
D. H. Cushing
Affiliation:
Fisheries Laboratory, Lowestoft
H. F. Nicholson
Affiliation:
Fisheries Laboratory, Lowestoft
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Extract

The part played by nutrient salts in the study of marine productivity is well known. When this series of production cruises was being planned, it was decided to take observations of the quantities of different nutrients in the sea. The cruises were closely spaced in time in order to provide an opportunity for examining the fairly rapid changes in nutrient content in relation to algal numbers. Nutrient observations were not made at such frequent intervals of time, because the spectrophotometer could not be used from R.V. ‘Platessa’. On ‘Sir Lancelot’ it was found that the spectrophotometer could be used adequately only when the ship was steaming before the wind and constituted a stable platform; this limit, however, reduced the opportunities for sampling nutrients in the desired positions.

Type
Research Articles
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 43 , Issue 2 , July 1963 , pp. 373 - 386
Copyright
Copyright © Marine Biological Association of the United Kingdom 1963

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