20 April 2018 – Perch

Perch are primarily lowland fish and prefer to live in still waters, slow-moving rivers or brackish water. Young perch gather in shoals, but older and larger perch can live in smaller groups or on their own.

Perch are easy to recognise by their two dorsal fins, the first of which is spiny. They are often brown, green and black. Perch generally have five to seven black bands stretching from the back to the belly. Their pectoral fins are often yellowish, and they have reddish belly fins.

The female is larger; the male rarely weighs more than 300 g. Perch have no teeth, they suck their prey into their mouths. They can swallow large prey in relation to their own body size.

Perch are commonly found in fresh and brackish water in Europe and Siberia. Perch are common in the southern and eastern areas of Norway. They are occasionally found in Trøndelag, Nordland and Troms but are commonly found in Finnmark. Genetic studies show that Norway’s perch probably migrated from two different refuges where they spent the most recent Ice Age.

Facts

NK 1982
Date of issue: 20 April 2018
Values and subjects: Perch – Kr 18.00
Artist: Martin Mörck
Printing method: Offset
Printing house: Joh. Enschedé Security Print