Lead in eelpout from the North and the Baltic Sea

Decreasing contaminations in North Sea eelpouts

Lead is used in many applications and may enter the environment during production, use and disposal. It is toxic. Some organisms are capable of accumulating lead. Since the Lead-in-Petrol Act became effective in 1971 contamination of humans and terrestrial environmental samples have decreased significantly (see ‘monitoring the efficacy – Lead-in-Petrol Act’). In marine and limnetic samples no comparable decline was observed probably because lead mainly enriches in the sediments.
Since monitoring in eelpout livers started in 1994 resp. 2000, however, a decrease in lead can also be observed in the North Sea samples. No comparable trend is apparent in eelpout from the Baltic Sea. In these samples, however, lead levels were already quite low when monitoring started.

Lead in eelpout livers from the North and the Baltic Sea
Fig. 1: Lead in eelpout livers from the North and the Baltic Sea Zoom in

 

Recommended profiles

Specimen

Eelpout As the only viviparous fish in German nearshore waters, it is a bioindicator in nearshore coastal marine ecosystems.

Analytes

Lead Naturally occurring poisonous heavy metal

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.