2023-10-07 10:27:05
Only apparently an idyll: Death lurks three meters deep in Wölfersheimer Lake because there is no oxygen there. Image: Wölfersheim community
The Wölfersheimer Lake, which emerged from the opencast mine, is largely dead. An experiment with large equipment and iron salts. And then there is the community’s sewage.
The water ripples in the wind. An angler opens his chair five steps from the bank and places the landing net next to it. A stone’s throw away, a cormorant dives into the Wölfersheimer Lake and reappears after a few moments. He shakes himself briefly, looks around and goes fishing again. At first glance, the body of water, lined with reeds and trees, looks like a normal lake. But less than three meters below the surface of the water, things literally look dark. And death lurks on the ground.
Thorsten Winter
Correspondent for the Rhein-Main-Zeitung for Central Hesse and the Wetterau.
“From a depth of two and a half meters there is no more oxygen,” says Ingo Kramer. The aquatic ecologist regularly checks the oxygen content of the lake for the Hessian community of Wölfersheim and thereby also checks the success of a costly long-term project. By using a special technology to gradually circulate the water, life should also be possible again in the lower layers, which, unlike currently, does not only consist of fungi and bacteria. Kramer emphasizes: “That will take years.” After all, the lake didn’t turn ecologically bad overnight.
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