Common bladder wrack
Common brown alga of the coastal areas of the North and Baltic Sea
Common bladder wrack (rockweed, or brown alga) is one of the macrophytic alga which have long been used in monitoring programmes as indicators of accumulation. As one of the most widespread algae in the northern hemisphere, it lends itself particularly well to the comparative analysis of coastal water pollution.
The forked thallus is used as a specimen. Sampling takes place every two months.
For more information about the specimen, the sampling and the processing of samples see the Richtlinie zur Probenahme und Probenbearbeitung Blasentang (Fucus vesiculosus) (German)
Eighty percent of all elements on earth are metals
Only eighteen elements in the periodic table
Organic compounds which are fully (per-) or partially (poly-) fluorinated
Class of synthetic fragrances
Atoms of one element with different weights
Additional information for the interpretation of contamination data
1985 - 2021