Limnic systems

Factsheet 7.2: Microplastics in the aquatic food web - Impact and transfer analysis based on the example of roundworms (nematodes)

"To assess the ecologic danger posed by microplastics, one must also consider indirect effects in the food web", say Sebastian Höss (Ecossa) and Marie-Theres Rauchschwalbe (Bielefeld University). The researchers from the joint project MikroPlaTaS looked at these effects using nematodes as an example.

Factsheet 7.1: Microplastics around dams - How do plastic particles behave in reservoirs?

Plastic is now ubiquitous not only in the sea but also in many inland waters. In certain areas, such as at barrages or in dams, the flow velocity decreases. As a result, the particles previously held in suspension by the current begin to sink to the bottom of the water and can then accumulate in the sediment.

The Plastic Pirates will explore German rivers again from May 1, 2019

The amount of plastic waste found at and in German rivers is still unexplored in many places. Following campaigns in 2016, 2017 and 2018, young people aged 10 to 16 are once again called upon to support science and go on expeditions as "plastic pirates" in 2019. The next sampling period will take place from 1 May to 30 June 2019.

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Plastic Pirates sample litter at rivers in Germany – Riverside litter and litter sources estimated by schoolchildren

Rivers are an important source of marine anthropogenic litter, but the particular origins of riverine litter itself have not been well established. Here we used a citizen science approach where schoolchildren examined litter at riversides and identified possible sources at over 250 sampling spots along large and small rivers in Germany, during autumn 2016 and spring 2017.

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