Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-30T17:25:26.165Z Has data issue: false hasContentIssue false
  • English
  • Français

A New Dredge for Collecting Burrowing Animals

Published online by Cambridge University Press:  11 May 2009

G. R. Forster
G. R. Forster
Affiliation:
The Plymouth Laboratory.
Get access Rights & Permissions [Opens in a new window]

Extract

The 'anchor-dredge' is a lightly built one-sided instrument designed to catch deep-burrowing animals. The depth to which it digs is dependent on the pull of the warp and not on the weight of the dredge.

From a trawler, it is best to work the dredge from the forward gallows, and give it a 'tug' as the ship is moving astern.

Comparative tests and direct underwater observations have shown that the anchor-dredge samples the in-fauna more efficiently than do either large rectangular and oval dredges, or the conical dredge.

A description and plan is given of a larger model, designed for use from a 6o-ft. or 90-ft. ship.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 32 , Issue 1 , June 1953 , pp. 193 - 198
Copyright
Copyright © Marine Biological Association of the United Kingdom 1953

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

Fowler, G. H. & Allen, E. J., 1928. The Science of the Sea. Oxford.Google Scholar
Gustafson, G., 1934. On the Thalassinidea of the Swedish West Coast. Ark. Zool. Bd. 28 A, No. 1, pp. 1–9.Google Scholar