Limmat

The Limmat is a river in Switzerland. The river commences at the outfall of Lake Zurich, in the southern part of the city of Zurich. From Zurich it flows in a northwesterly direction, after 35 km reaching the river Aare. The confluence is located north of the small town of Brugg and shortly after the mouth of the Reuss.

The main towns along the Limmat Valley downstream of Zurich are Dietikon, Wettingen, and Baden. Its main tributaries are the Linth, via Lake Zurich, the Sihl, in Zurich, and the Reppisch, in Dietikon.

All of the existing fish species (at least 22 species) in the Limmat River are facing potential mortality during the downstream migration. Some of the most important species are: Eel (Anguilla anguilla), Brown trout, Common barbel (Barbus barbus), Grayling, Spirlin, Nase, Chub, Bleak.