Table 7.
Season | Location | n | Mean size (mm) | WW (g) | DW (g) | Water content (%) | Mean energy density | Method | Source | |
---|---|---|---|---|---|---|---|---|---|---|
kJ g−1 WW | kJ g−1 DW | |||||||||
Summer | Macquarie | 18 | 116.8 ± 35.4 SD | 14.2 ± 14.2 SD | 2.7 ± 2.8 SD | 81.7 ± 1.9 SD | 3.93 ± 1.17 SD | 21.43 ± 4.88 SD | BC | Tierney et al. (2002) |
Autumn | Lazarev Sea | 7 | 77.6 ± 23.4 SD | 3.1 ± 3.6 SD | 0.4 ± 0.4 | 85.6 ± 2.5 SD | 2.92 ± 0.42 SD | 20.36 ± 1.32 SD | BC | Van de Putte et al. (2006) |
Weddell Sea | 32 | 77.2 | 3.8 | 0.5 | 85.9 ± 2.0 SD | 2.24 | 15.89 | PC | Donnelly et al. (1990)a | |
Winter | Scotia Sea | 16 | 90 | 7.8 | 0.9 | 88.4 ± 1.4 SD | 1.72 | 14.83 | PC | Donnelly et al. (1990) |
Spring | Ross Sea | (p) | 151a ± 20 SE | 38.6 ± 18.2 SE | 4.9 | 87.3 | 2.9 | 22.83 | BC | Lenky et al. (2012) |
Scotia Sea | 8 | 99.4 | 5.8 | 0.9 | 85.1 ± 2.1 SD | 2.22 | 14.89 | PC | Donnelly et al. (1990) |
Energy density measurements were done using bomb calorimetry (BC) and proximate composition (PC). Energetic values in italics represent values that were converted using information from the given sources. n represents the number of samples measured. Where this expresses samples of pooled individuals, this is indicated with (p). The standard error (SE) or standard deviation (SD) as given in the original source is added where available. The mean size is given in standard length (SL) unless otherwise indicated
aMeasured in total length (TL)
bA factor of 4.19 was used to convert calories to joules