New target-strength model indicates more krill in the Southern Ocean

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Improved parameterization of the SDWBA for estimating krill target strength (2006, methodology): “The mean error can be reduced by increasing the order of the polynomial for the simplified SDWBA (Figure 7), but here the order of the polynomial was chosen according to Demer and Conti (2005).”
Developing an acoustic survey of euphausiids to understand trophic interactions in the Bering Sea ecosystem (2012, methodology): “…to CCAMLR (Convention on the Conservation of Antarctic Marine Living Resources) ‘standard krill lengths’ (anterior of eye to posterior of telson; Demer and Conti, 2005; McGehee et al., 1998) using a regression obtained using 2008 measurements (standard krill length¼1.07 euphausiid lengthþ0.”
Distribution and population dynamics of Euphausia superba: summary of recent findings (2005, methodology): “Furthermore, acoustic estimates of krill biomass are probably higher than currently estimated by standard methods, because of different target strength TS (Demer and Conti 2005).”
Variations in the biomass of Antarctic krill (Euphausia superba) around the South Shetland Islands, 1996–2006 (2008, methodology): “Range of total lengths (TL, minimum–maximum) and acoustic DSv ranges applied to assess biomass of Antarctic krill in the EI, South and West areas of the SSI region between 1996 and 2006, using the simplified SDWBA model (see Demer and Conti, 2003a, b; CCAMLR, 2005; Demer and Conti, 2005; Conti and D”