![](https://oandhs.ug.edu.pl/wp-content/uploads/2018/09/Dumnicka-326x245.png)
Hydrobiology
Changes in the benthic fauna composition in the Upper Vistula over the last 50 years – the consequences of the water pollution reduction and alien species invasion
The organic pollution of the Upper Vistula waters has been significantly reduced since the mid-20th century. Also salinity has gradually decreased, following an increase observed until the 1990s. Furthermore, the number of alien species has […]