Physiological factors causing natural variations in acoustic target strength of fish
- 1 February 1990
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 70 (1) , 107-127
- https://doi.org/10.1017/s002531540003424x
Abstract
The swimbladder is recognized as responsible for a major part of the acoustic backscattering from fish. In most fishes it has the function of a buoyancy regulator but in others its main function is rather unclear. Based on methods for exact mapping of the swimbladder shape, observations of deviations from normal appearance and shape are discussed in relation to possible effects on target strength. Evidence for both periodic variations, as from uncompensated vertical migrations, and seasonal variations, caused by the fat cycle and gonad development, are presented.This publication has 15 references indexed in Scilit:
- Measurement of fish target strength with a split-beam echo sounderThe Journal of the Acoustical Society of America, 1986
- Rather-high-frequency sound scattering by swimbladdered fishThe Journal of the Acoustical Society of America, 1985
- The herring swimbladder: loss and gain of gasJournal of the Marine Biological Association of the United Kingdom, 1984
- Importance of the swimbladder in acoustic scattering by fish: A comparison of gadoid and mackerel target strengthsThe Journal of the Acoustical Society of America, 1980
- Averaging of fish target strength functionsThe Journal of the Acoustical Society of America, 1980
- The haemodynamics of gas resorption from the physoclist swimbladder: the structure and morphometrics of the oval in Pollachim virens (L).Journal of Fish Biology, 1979
- The Functional Anatomy and Development of the Swimbladder-Inner Ear-Lateral Line System in Herring and SpratJournal of the Marine Biological Association of the United Kingdom, 1976
- Adaptation by COD and Saithe to pressure changesNetherlands Journal of Sea Research, 1973
- Relation Between Water Temperature and Gastric Digestion of Largemouth Bass (Micropterus salmoides Lacépède)Journal of the Fisheries Research Board of Canada, 1962
- Physical Properties and Hydrostatic Function of the Swimbladder of Herring (Clupea harengus L.)Journal of the Fisheries Research Board of Canada, 1962