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When the weather is nice, it is time to go swimming in a lake, canoeing on a river or having a picnic by the water. The Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) shares do's and don'ts for environmentally friendly water fun – including some that are not so obvious.

The study in Nature Ecology & Evolution shows that shipping shipping has contributed to a significant loss of biodiversity of fish, mussels, snails and small crustaceans in European rivers in recent decades – and that the remaining animal communities are becoming increasingly homogeneous and river-typical species are being lost. Invasive species, on the other hand, are significantly increasing. 

Prolonged rainfall and storm events have caused rivers to burst their banks in parts of Germany. How can we better prepare for such extreme events, and what measures benefit both people and nature? We take a look at the state of the country’s rivers and floodplains and why it is worth rethinking flood protection.

Researchers from the Global Lake Ecosystem Observatory Network have now reviewed the factors that cause algal blooms to subside, the challenges in combating them, and how to deal with current and ongoing effects of climate change.

In a recent EU consultation, the IGB provided feedback on the use of so-called Renure fertilisers and recommended that the current nitrate limits should be strictly followed and that renure fertilisers should not benefit from any exemptions.

In order to protect lakes from chronic diseases and threatening conditions and to heal them, strategies similar to those used in human healthcare should be applied: Prophylaxis, regular screening, treatment and mitigation on a local to global scale.

At around 380 kilometres, the Spree is not one of Germany’s longest rivers, but it is one of its most famous. As the capital’s river, it is representative of water bodies in Germany and around the world that are under increasing pressure. While private and commercial interests in its water resources continue to grow, it is also clear that there will be significantly less water available in the future. What needs to be done to counteract this is the subject of controversial debate.

The IGB has provided research-based feedback on a draft legislation to regulate the reuse of municipal wastewater for agricultural irrigation.