Figur
5. Concentrations (mg/kg dry weight, dw) of Hg over time from
2006-2018 analysed in A) claw meat and B) brown meat of boiled crabs
captured at the site of U-864, 4 nautical miles (nm) south and 4 nm
north of the wreck. Concentrations are given as log10
transformed values, and mean, standard errors and 95% confidence
intervals are givens. The horizontal lines represent reference sites
on the west coast of Norway south of 62°N. The black horizontal line
represents the mean Hg concentration of all 110 crab samples analysed
in 2011 on the coast of west Norway south of 62°N (Julshamn
m.fl. 2012). The orange lines
represent the highest and the lowest mean values among all 11
stations included in the study.