RESULTS
Temperature decreased from 14.5°C at the surface to 8.3°C at 75 m and was stable around 8.3–8.4°C all way down to the bottom. Salinity was 24.6 psu in the upper 2 m, increased rapidly to 30.6 psu at 4 m and stabilized around 35.0 from ∼100 m. No differences in turbidity were detected with depth, but coloured dissolved organic matter was patchy and highest around 300 m. Fluorescence (i.e. in vivo chlorophyll a) maximum (0.7) was at 6 m from where it dropped to 0.1 at 18 m (Fig. 2).