Figur 5. Concentrations (mg/kg dry weight, dw) of total mercury (THg) from 2006-2021 analysed in A) claw meat and B) brown meat of raw (orange) and boiled (blue) crabs captured at the site of U-864 and 4 nautical miles north of the wreck. Concentrations are given as log10 transformed values, and mean, standard errors and 95% confidence intervals are given. From 2018 on, samples were not freeze dried before analysis, and dry matter was determined by drying at 104°C.
