Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-26T10:13:51.375Z Has data issue: false hasContentIssue false

Phosphorus and Silicon in Sea Water off Plymouth During 1956

Published online by Cambridge University Press:  11 May 2009

F. A. J. Armstrong
Affiliation:
The Plymouth Laboratory

Extract

The results of analysis of sea water from the International Hydrographic Station E1 during 1956 are presented in graphical form and as integral mean values for the water column of 70 m. The seasonal variation is shown; it appears that consumption of phosphate in the spring outburst of plants was 0·34 μg atom P/l., and that of silicate 2·78 μg atom Si/1. The spring outburst was followed more closely than usual in the period 26 March to 24 April during 4 weeks of rather bright weather. Nearly all the silicate in the water was taken up, and some phosphate left, and it seems that the rapidly growing diatoms, which predominated at the time, were deficient in silicon. It is suggested that in the deep water they continued to absorb silicate, although not receiving enough light for growth and division.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1958

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Armstrong, F. A. J. 1954. Phosphorus and silicon in sea water off Plymouth during the years 1950 to 1953. J. mar. biol. Ass. U.K., Vol. 33, pp. 381–92.CrossRefGoogle Scholar
Armstrong, F. A. J. 1955. Phosphorus and silicon in sea water off Plymouth during 1954. J. mar. biol. Ass. U.K., Vol. 34, pp. 223–8.CrossRefGoogle Scholar
Armstrong, F. A. J. 1957. Phosphorus and silicon in sea water off Plymouth during 1955. J. mar. biol. Ass. U.K., Vol. 36, pp. 317–19.CrossRefGoogle Scholar
Jenkin, Penelope M. 1937. Oxygen production by the diatom Coscinodiscus excentricus in relation to submarine illumination in the English Channel. J. mar. biol. Ass. U.K., Vol. 22, pp. 301–43.Google Scholar
Jenkins, Pamela G. 1955. Seasonal changes in the phytoplankton as indicated by spectrophotometric chlorophyll estimations 1952–53. Pap. mar. Biol. Oceanogr. Suppl. to Vol. 3, of Deep-Sea Res., pp. 5867.Google Scholar
Lewin, Joyce C. 1954. Silicon metabolism in diatoms. I. Evidence for the role of reduced sulfur compounds in silicon metabolism. J. gen. Physiol., Vol. 37, pp. 589–99.Google Scholar
Marshall, S. M. & Orr, A. P. 1928. The photosynthesis of diatom cultures inthe sea. J. mar. biol. Ass. U.K., Vol. 15, pp. 321–60.CrossRefGoogle Scholar
Riley, G. A. 1941. Plankton studies. IV. Georges Bank. Bull. Bingham oceanogr. Coll., Vol. 7, Art. 4, 73 pp.Google Scholar
Steele, J. H. 1956. Plant production on the Fladen ground. J. mar. biol. Ass. U.K., Vol. 35, pp. 133.Google Scholar
Vinogradov, A. P. 1953. The elementary composition of marine organisms. Mem. Sears Found, mar. Res., No. 2, 647 pp.Google Scholar