News

Researchers from all over Europe, with the participation of IGB, have created high-standard reference genomes for 98 species as part of the European Reference Genome Atlas (ERGA) pilot project. This collaboration of scientists from 33 countries is an important milestone on the way to a reference genome database for European animals, plants and fungi. The results were presented in an article in the scientific journal npj Biodiversity.

It is a milestone in European species conservation: Today, one hundred young European sturgeon (Acipenser sturio) were released into the Elbe River near Magdeburg as part of a long-term reintroduction programme and in the presence of the German Environment Minister Steffi Lemke. It is the first sturgeon offspring for the river since 2015. This action is an important step towards re-establishing a self-sustaining sturgeon population in one of Germany's largest river systems.

The evaluation of different management approaches for macrophytes showed that the "do nothing" option can also be considered when dealing with aquatic plants. According to the study, mass developments of aquatic plants primarily impair the recreational value of a water body, while they are often beneficial for other ecosystem services

A team of scientists collected and analysed water samples at the time. The result, published in Nature Water today, showed that high concentrations of organic micropollutants exacerbated the lethal effects of prymnesin. 

Conservation efforts have led to the recovery of pinnipeds populations worldwide after decades of intensive hunting and culls. However, this positive development has led to conflicts with fisheries, particularly small-scale fisheries, researchers have found.

Postdoctoral researcher Nedim Tüzün's new research project ECO-EVO ALAN is funded by a Marie Skłodowska-Curie Actions Fellowship. It focuses on how artificial light at night (ALAN) affects aquatic ecosystems, especially urban ponds. While the negative effects of ALAN on terrestrial ecosystems are well documented, there are still many unanswered questions about its effects on aquatic systems. 

Using long-term monitoring data from 46 German lakes, researchers from IGB have shown that surface temperatures of lakes have risen faster than air temperatures over the last 30 years. Ooxygen concentrations in the deep water have decreased. Modelling suggests that this trend will continue. The good news is that the lack of oxygen in the hypolimnion would be alleviated if the nutrient loads from urban and agricultural discharges could be reduced.

Researchers have compiled and analyzed the key environmental factors that led to the mass development of the brackish water alga Prymnesium parvum in the Oder in the summer of 2022. The data synthesis shows how multiple stressors combined to allow an alga that normally thrives in stagnant salt water to proliferate en masse in a completely atypical habitat. In addition, a study on the quantitative impact on fish stocks in the Oder was published: compared to before the disaster, fish and mussel stocks have been decimated by more than half.