Table 8.
Overview of the average energy density of several fish species
| Season | Location | n | Mean size (mm) | Water content (% WW) | Mean energy density | Method | Source | |
|---|---|---|---|---|---|---|---|---|
| kJ g−1 WW | kJ g−1 DW | |||||||
| Notolepis coatsi (Paralepididae) | ||||||||
| Autumn | Weddell Sea | 5 | 62.4 | 82.2 ± 2.7 | 2.65 | 14.89 | PC | Donnelly et al. (1990)b |
| Winter | Scotia Sea | 5 | 63.4 | 79.4 ± 3.4 | 3.22 | 15.63 | PC | Donnelly et al. (1990) |
| Summer | East Antarctica | 3 | 168 ± 52 | 79.8 ± 1.3 | 4.42 ± 0.33 | 21.90 ± 0.73 | BC | Van de Putte et al. (2010) |
| Paradiplospinus gracilis (Gempylidae) | ||||||||
| Summer | Possession Island | 1 | 168.7 | 78.9 | 4.6a | 21.8a | BC | Cherel and Ridoux (1992) |
| Winter | Scotia Sea | 2 | 325.5 | 69.1 ± 2.4 | 7.92 | 25.63 | PC | Donnelly et al. (1990) |
| Antimora rostrata (Moridae) | ||||||||
| Summer | Macquarie | 2 (p) | 227–225 | 80.1 ± 1.0 | 4.33 | 21.75 ± 2.28 | BC | Tierney et al. (2002) |
| Stomias gracilis (Stomiidae) | ||||||||
| Summer | Macquarie | 18 (p) | 130–278 | 77.8 ± 3.1 | 5.15 | 23.20 ± 2.99 | BC | Tierney et al. (2002) |
| Micromesistius australis (Gadidae) | ||||||||
| Patagonia | 3 | 140–150 | 78.5 | 4.54 | 21.12 | BC | Ciancio et al. (2007) | |
Families are given in brackets. Energy density measurements were done using bomb calorimetry (BC) and proximate composition (PC). Energy densities 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 deviation (SD) is given where available. The mean size is given in standard length (SL)
aSample taken from bird stomach contents, in which the energetic value is potentially overestimated due to water removal in stomach
bA factor of 4.19 was used to convert calories to joules