Scotian Shelf euphausiid and silver hake population changes during 1984-1996 measured by multi-frequency acoustics

• Published in: ICES Journal of Marine Science
• Main Authors: Cochrane, N. A., Sameoto, D. D., Herman, A. W.
• Format: Text
• Language: English
• Published: Oxford University Press 2000
• Subjects: Articles; Emerald Basin; Hake; Meganyctiphanes norvegica
• Online Access: http://icesjms.oxfordjournals.org/cgi/content/short/57/1/122; https://doi.org/10.1006/jmsc.1999.0563

A 13-year time series of integrated acoustic volume backscattering strengths from Emerald Basin on the Scotian Shelf at 12, 50, 122, and 200 kHz are examined here, together with zooplankton data from net sampling. The three highest acoustic frequencies delineate relative abundances of the euphausiid...