Modelling three-dimensional directivity of sound scattering by Antarctic krill: progress towards biomass estimation using multibeam sonar

• Main Authors: George R Cutter, Josiah S Renfree, Martin J Cox, Andrew S Brierley, David A Demer Cutter, Renfree G R, J S Cox, M J Brierley, A S, Demer, D A, G R Cutter, J S Renfree, D A Demer, A M J S Cox, Brierley
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2009
• Subjects: Antarctic; Cape Shirreff; Livingston Island; Shirreff; Antarc*; Antarctic Krill; Antarctica; Euphausia superba
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.4823

Target strength (TS) estimation is a principal source of uncertainty in acoustic surveys of Antarctic krill (Euphausia superba). Although TS is strongly dependent on krill orientation, there is a paucity of information in this regard. This paper considers the potential for narrow-bandwidth, multibea...