Diurnal variations in mean volume backscattering strength of an Antarctic krill (Euphausia superba) patch

A series of acoustic transects and quantitative net hauls was made in a large patch of Antarctic krill ( Euphausia superba ) just north of South Georgia. The krill went through a diurnal pattern of dense swarming in daytime and dispersion after dark. This was accompanied by an 8 dB change in mean vo...

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Bibliographic Details
Published in:Journal of Plankton Research
Main Author: Everson, Inigo
Format: Text
Language:English
Published: Oxford University Press 1982
Subjects:
Online Access:http://plankt.oxfordjournals.org/cgi/content/short/4/1/155
https://doi.org/10.1093/plankt/4.1.155
Description
Summary:A series of acoustic transects and quantitative net hauls was made in a large patch of Antarctic krill ( Euphausia superba ) just north of South Georgia. The krill went through a diurnal pattern of dense swarming in daytime and dispersion after dark. This was accompanied by an 8 dB change in mean volume backscattering strength.