Otolith chemistry of Patagonian toothfish (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni)

Minor and trace element chemistry measured along the edges and in the nuclei of otoliths sampled from Patagonian toothfish (Dissostichus eleginoides), taken from around South America and the Antarctic Circumpolar Current, and Antarctic toothfish (D. mawsoni), taken from the Ross Sea, Pacific-Antarctic Ridge and South Shetland Islands. Measurements are either 1) counts taken using laser-based ICPMS, or 2) concentrations calculated from counts, corrected against background and references, and ratioed to Ca as the internal standard.