Affordable Access

Publisher Website

The target strengths of fish

Journal of Sound and Vibration
Publication Date
DOI: 10.1016/0022-460x(69)90026-1
  • Design
  • Musicology
  • Physics


Abstract Knowledge of the acoustic target strength of a fish (or of a shoal of fish) is required to enable the performance of present and future sonar equipments to be determined for fish targets. Also, it is hoped that measurement of the strengths and characters of the echoes received from fish will give a reliable guide to the size of the fish and, possibly later, an indication of at least gross differences between various types of fish. As a result, a variety of workers have been interested in the acoustic scattering properties of fish, initially at the frequencies of existing equipments, but later over a much wider range of frequencies, pursuing a more fundamental approach to understanding the formation of fish echoes and their relation to the physical structure of the fish. Over the last 12 years, a programme of research in this field has been directed by the author. Recently, the White Fish Authority has supported the design of apparatus operating at 30, 97, 170, 278 and 547 kHz and measurements have been made on cod fish at these frequencies in a large water tank. This field is also related to a number of other subjects such as the design of new sonar equipments, the identification, counting and behaviour of fish, and telemetry from the trawl. Over 50 references are given. Further work remains to be done.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

A model for estimating distributions of fish schoo...

on Deep Sea Research Part A Ocean... Jan 01, 1981

Measurements of the acoustic target strengths of f...

on Journal of Sound and Vibration Jan 01, 1971

Targeting the board's strengths and weaknesses.

on Trustee : the journal for hosp... October 1987
More articles like this..