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The Oder is the last major river in Germany where fish and other animals can still migrate freely over long stretches. Since 2006, it has been the focus area for the reintroduction of the Baltic sturgeon. What is the fate of the sturgeon now?

Naturalne przyczyny tej zaistniałej katastrofy są mało prawdopodobne. Ostatnie badania wzmocniły podejrzenie, że w Odrze masowo rozwinęły się toksyczne glony słonawowodne.

A team with Jonathan Jeschke found that bat species with higher affinity to cities are characterised by relatively low frequencies and long durations of their echolocation calls, a small body size and flexibility in the choice of their daytime roost.

For the sturgeon species, the situation has deteriorated significantly since the last assessment of the IUCN in 2010, with the change being most dramatic in Europe and Asia.

Low-growing species such as stoneworts were last sighted in the Müggelsee over a century ago. Now, after 20 years of intensive mapping and diving surveys, not just one but three of these desirable species of underwater vegetation have been found.

The Prussian carp or Gibel carp is considered one of the most successful invasive fish species in Europe. Its ability to reproduce asexually gives it a major advantage over competing fish. An international research team has for the first time described the complete genome of the Prussian carp. This also provides a much better understanding of its unusual reproductive method and to improve its management.

Our planet is experiencing a dramatic decline in biodiversity. Freshwater plants and animals are particularly at risk. IGB scientists reveal where and why freshwater habitats are declining.

An international research team involving IGB calls for the better protection of aquatic fungi. This endeavour sounds insignificant and difficult to implement, but this is not the case on either count.