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Chemical Constituents of Biological Importance in the English Channel, November, 1930, to January, 1932. Part I. Phosphate, silicate, nitrate, nitrite, ammonia.

Published online by Cambridge University Press:  11 May 2009

L. H. N. Cooper
L. H. N. Cooper
Affiliation:
Assistant Chemist at the Plymouth Laboratory.
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Extract

Determinations of phosphate, silicate, nitrate, nitrite and ammonia have been made at frequent intervals at two Stations, L4 and El, in the English Channel off Plymouth between the autumn of 1930 and January, 1932. Determinations were also made quarterly at E2 in mid-Channel.

The year 1931 was an early one from the point of view of plankton production. The chemical data show that there was a small mid-winter outburst which gathered momentum during January and February. The main spring outburst started, however, early in March, carrying on fairly steadily until about the middle of May. The summer was characterised by exceptionally low phosphate and nitrate right through the water column due to very efficient utilisation in the spring and to the unusual hydrodynamical conditions. There was also a small autumn outburst.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 18 , Issue 2 , January 1933 , pp. 677 - 728
Copyright
Copyright © Marine Biological Association of the United Kingdom 1933

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