Lygnern is a lake in the municipalities of Kungsbacka

Kungsbacka Municipality

Kungsbacka Municipality is a municipality in Halland County on the Swedish west coast, some 30 km south of Gothenburg. The municipal seat is located in the town Kungsbacka....

 and Mark

Mark Municipality

Mark Municipality is a municipality in Västra Götaland County in western Sweden. Its seat is located in the town of Kinna.The municipality was created with the municipal reform of 1971 by the amalgamation of eight previous entities. Most of them had themselves been formed by the 1952 municipal...

, western Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

. With an area of 33 km², it is the largest lake in Halland County

Halland County

Halland County is a county on the western coast of Sweden. It corresponds roughly to the cultural and historical province of Halland. The capital is Halmstad....

. Its main outflow is Rolfsån

Rolfsån

Rolfsån is a river in Sweden, the main outflow of lake Lygnern. It empties out into the Kungsbacka Fjord.-References:...

, which in turn empties out into the Kungsbacka Fjord

Kungsbacka Fjord

The Kungsbacka Fjord is a fjord and a nature reserve in Halland County, western Sweden. The fjord is about 10 km long. It is delimited to the west by the Onsala Peninsula and to the east by the parish of Fjärås...

.

The lake serves as a source of drinking water for Kungsbacka. In 2006, it was nominated as the cleanest lake in Sweden, as 98% of the surveyed residents of the municipality were satisfied with the water quality.

Fishing

Ten fish species have been found in the lake, which is particularly rich in pike

Pike

-Transit:*Pike or toll road, a course in which fees are collected. Sometimes a historical name of what once was a toll road.-Fish:*Esox, genus of pikes**Northern pike, common north hemisphere pike*Blue pike or blue walleye, an extinct freshwater fish...

, trout

Trout

Trout is the name for a number of species of freshwater and saltwater fish belonging to the Salmoninae subfamily of the family Salmonidae. Salmon belong to the same family as trout. Most salmon species spend almost all their lives in salt water...

 and European perch

European perch

The European perch, Perca fluviatilis, is a predatory species of perch found in Europe and Asia. In some areas it is known as the redfin perch or English perch, and it is often known simply as perch. The species is a popular quarry for anglers and has been widely introduced beyond its native area,...

.