Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-25T07:10:20.008Z Has data issue: false hasContentIssue false
  • English
  • Français

Phosphate and Fisheries

Published online by Cambridge University Press:  11 May 2009

L. H. N. Cooper
L. H. N. Cooper
Affiliation:
Chemist at the Plymouth Laboratory
Get access Rights & Permissions [Opens in a new window]

Extract

Landings of the spurdog, Squalus acanthias, at Mevagissey reflect the changes in phosphate at the neighbouring International Hydrographic Station Ei.

It is suggested that commercial landings of rays and skates ought to follow major changes in nutrient content of the overlying water with a time lag of some years. Fishery statistics for English Channel ports support this view. The dependence of the bottom in-fauna upon the fertility of the overlying water is also discussed.

Proposals to improve commercial fisheries by artificially fertilizing considerable areas of the open sea are critically examined. Such artificial enrichment is considered to be grossly uneconomic unless fishing becomes pisciculture in which weeding of unwanted algae and control of unwanted pests—competing predators and parasites—is undertaken.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 27 , Issue 2 , April 1948 , pp. 326 - 336
Copyright
Copyright © Marine Biological Association of the United Kingdom 1948

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

Atkins, W. R. G., 1944. Plant nutrients in the sea. Nature, Vol. 154, p. 489.CrossRefGoogle Scholar
Cooper, L. H. N., 1938. Phosphate in the English Channel, 1933–38, with a comparison with earlier years, 1916 and 1923–32. Journ. Mar. Biol. Assoc., Vol. 18, pp. 181–95.CrossRefGoogle Scholar
Ford, E., 1921. A contribution to our knowledge of the life histories of the dogfishes landed at Plymouth. Journ. Mar. Biol. Assoc., Vol. 12, pp. 468–505.CrossRefGoogle Scholar
Ford, E., 1928. Herring investigations at Plymouth. II. The average number of vertebrae from herrings from the English Channel and South-east Ireland. Journ. Mar. Biol. Assoc., Vol. 15, pp. 267–76.CrossRefGoogle Scholar
Graham, M., 1944. Science and the fisheries. Nature, Vol. 154, p. 336.CrossRefGoogle Scholar
Gross, F., 1942. The harvest of the sea. Proc. Roy. Phil. Soc. Glasgow, Vol. 66, pp. 79–90.Google Scholar
Gross, F., Raymont, J. E. G., Marshall, S. M. & Orr, A. P., 1944. A fish-farming experiment in a sea loch. Nature, Vol. 153, p. 483.CrossRefGoogle Scholar
Gross, F., Raymont, J. E. G., Nutman, S. R. & Gauld, D. T., 1946. Application of fertilizers to an open sea loch. Nature, Vol. 158, p. 187.CrossRefGoogle Scholar
McCance, R. A. & Shipp, H. L., 1933. The chemistry of flesh foods and their losses on cooking. Med. Res. Council, Spec. Rep. Ser. No. 187.Google Scholar
Ritchie, J., 1944. Science and the fisheries. Nature, Vol. 154, pp. 275, 832.CrossRefGoogle Scholar
Russell, F. S., 1937–1940. The seasonal abundance of young fish. Parts IV–VII. Journ. Mar. Biol. Assoc., Vol. 21, pp. 679–86; Vol. 22, pp. 493–500; Vol. 23, pp. 381–86; Vol. 24, pp. 265–70.CrossRefGoogle Scholar
Steven, G. A., 1932. Rays and skates of Devon and Cornwall. II. A study of the fishery; with notes on the occurrence, migrations and habits of the species. Journ. Mar. Biol. Assoc., Vol. 18, pp. 1–33.CrossRefGoogle Scholar
Steven, G. A., 1936. Migrations and growth of the thornback ray (Raia clavata L.). Journ. Mar. Biol. Assoc., Vol. 20, pp. 605–14.CrossRefGoogle Scholar
Wheeler, J. F. G., 1945. Plant nutrients in the sea. Nature, Vol. 155, p. 731.CrossRefGoogle Scholar