- Split View
-
Views
-
Cite
Cite
J. Revie, G. Wearden, P. D. Hocking, D. E. Weston, A twenty-three day twenty-mile echo record of fish behaviour, ICES Journal of Marine Science, Volume 36, Issue 1, November 1974, Pages 82–86, https://doi.org/10.1093/icesjms/36.1.82
- Share Icon Share
Abstract
The long-range sonar bottom-laid in the Bristol Channel was run continuously for twenty-three days in June 1964, displaying the changing structure in a 4° beam out to 37 km. The occasion was a cooperative fish investigation experiment involving mainly the Fisheries Laboratory, Lowestoft and the Admiralty Research Laboratory. The echo displays of fish are reproduced, and show character changes every few days. The advantage of continuity in such records is demonstrated, both in general and as a trials monitor. Special features include markings associated with anchoring, with a midwater trawl, and with a very simple artificial target.
Author notes
*Present address: Institute of Oceanographic Sciences, Wormley, Surrey, England.