Hostname: page-component-6dbcb7884d-xl9kw Total loading time: 0 Render date: 2025-02-14T08:26:08.892Z Has data issue: false hasContentIssue false
  • English
  • Français

Observations in the sea on the reaction to ultra-violet light of certain sound scatterers

Published online by Cambridge University Press:  11 May 2009

R. E. Craig  and
I. G. Baxter
R. E. Craig
Affiliation:
Scottish Home Department, Marine Laboratory, Aberdeen
I. G. Baxter
Affiliation:
Scottish Home Department, Marine Laboratory, Aberdeen
Get access Rights & Permissions [Opens in a new window]

Extract

Two experiments on the reaction to ultra-violet light of certain sound scatterers in the area are described.

The source was a 125 W. ultra-violet lamp.

The scatterers were detected using a Kelvin and Hughes recording echo-sounder, type 22.

The traces on both occasions were of the confused type caused by a number of different organisms, apparently lying between 20 and 60 m. and 8 and 30 m. respectively.

The responses of the different organisms to the ultra-violet light as shown by the components of the traces are described and their speeds of reaction calculated.

The types of organisms causing the traces are suggested.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 31 , Issue 2 , October 1952 , pp. 223 - 227
Copyright
Copyright © Marine Biological Association of the United Kingdom 1952

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

REFERENCES

Boer, P. A. de, 1950. Ervaringen met het echolood tijdens de ijle haringteelt op de Belgische kust. Visserij-Nieuws, Vol. 2, No. 11, p. 127. (Summarized in World Fisheries Abstracts, Vol. 1, No. 4, July-August, 1950.)Google Scholar
Burd, A. C. & Lee, A. J., 1951. The sonic scattering layer in the sea. Nature, Vol. 167, p. 624.CrossRefGoogle Scholar
Jenkins, J. T., 1927. The Herring and the Herring Fisheries. 163 pp. London.Google Scholar
Maeda, H., 1951. Analytical studies of marine lamp communities. Publ. Seto Mar. Biol. Lab., Vol. 1, No. 4.Google Scholar
Parrish, B. B. & Craig, R. E., 1951. Sonic layers in the sea. Nature, Vol. 168, p. 472.CrossRefGoogle Scholar
‘REFLECTOR’, , 1949. Views on the News. Electrical Rev., Vol. 145, p. 787.Google Scholar
Worster, R. C., 1948. On the rising velocity of air bubbles. British Hydromechanics Research Association, Tech. Note, No. 1.Google Scholar