Barium levels in bladder wrack from the North- and Baltic Seas

Significant difference in barium levels of bladder wrack from the North and Baltic Seas.

Bladder wrack accumulates barium and its contents give an impression of the respective environmental concentrations.
At the Baltic Sea sampling area Kap Arkona/Varnkevitz barium levels in bladder wrack were 4 - 6 times higher than in bladder wrack from the North sea sampling areas Koenigshafen/Sylt and Eckwarderhoerne/Jadebusen.
Over the years concentrations remained within the same range. The differences between the North and Baltic Sea probably reflect different geological background concentrations.

Barium levels in bladder wrack (Fucus vesiculosus) from the North and Baltic Sea.
Fig. 1: Barium levels in bladder wrack (Fucus vesiculosus) from the North and Baltic Sea. Zoom in

 

Recommended profiles

Specimen

Common bladder wrack Common brown alga of the coastal areas of the North and Baltic Sea

Analytes

Barium Alkaline earth metal which occurs naturally in rocks and minerals

Sampling area

NP Vorpommersche Boddenlandschaft National Park in the largest brackish water (Bodden) habitat of the world.
BR/NP Wattenmeere National park in the world largest connected sand and mud flats.