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On Manganese in Sea and Fresh Waters

Published online by Cambridge University Press:  11 May 2009

H. W. Harvey
H. W. Harvey
Affiliation:
Hydrologist at the Plymouth Laboratory
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Extract

A method of estimating the maximum quantity of manganese available to plants in sea and fresh waters is described.

Samples of sea water collected off Plymouth in 1948 contained 0·7–1·0 mg. Mn/m.3 in solution plus any particles soluble at pH 4·6. After storage and sedimentation of particulate matter, the quantity decreased to 0·0–0·25 mg./m.3

Samples collected off the Isle of Man, an area with a rich summer population of flagellates, contained 2·0–2·6 mg./m.3

The river Yealm, south Devon, on leaving Dartmoor contained 1 mg., and after passing through agricultural land 10 mg.\m.3

Lakes and streams in the English Lake District contained 6–40 mg.\m.3 The least fertile waters contained the least soluble manganese.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 28 , Issue 1 , June 1949 , pp. 155 - 164
Copyright
Copyright © Marine Biological Association of the United Kingdom 1949

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References

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