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As energy supplier and stimulus of the internal clock, light is of fundamental importance to plants and animals. This also applies to fish and microscopic organisms in lakes. Like other species, they have adapted to the day-night rhythm during evolution. But what happens if a lake is illuminated by artificial lighting at night, or if not enough light penetrates into the water during the day? These questions are examined during this year's summer experiment at the Lake Lab.

Six tanks filled with water of River Spree and exposed to differently-colored artificial light: this is the core element of an art installation shown from July 5th to September 2nd 2018 in Berlin-Charlottenburg.

11 scientists and 300 kilometers of river: impressions of three weeks of sampling in the entire river network of the Vjosa in Albania.

The relationship between energy efficiency in the food web and size distribution allows a better and more direct understanding of biological processes and disturbances that impact aquatic ecosystems.

Thomas Mehner, limnologist and fish ecologist at IGB, is sharing his ideas for a redefinition of the international specialist society SIL, which is devoted to limnology and the management of freshwaters.

Pesticides can cause big problems in ecosystems. That is the result of a new discussion paper of German National Academy of Sciences Leopoldina, in which effects of pesticides and options for action are explained based on recent scientific results.

What are the crucial aspects for river restoration? At the end of April, IGB scientists and representatives of the Nature And Biodiversity Conservation Union (NABU) met on an excursion on the river Havel.

So far, 15 of the 24 enclosures of the LakeLab were equipped with the Stechlin Swing. These tarpaulins help to prevent algal growth on the inner walls of the cylinders. Since all 24 enclosures are needed in this year’s summer experiment, today the remaining 9 cylinders were furnished with the Stechlin Swings.