Rosjön
northern nutrient-rich lowland lake · 64°N
clarity 2.3 mmax depth 4 mpH 7.4eutrophicstatus unsatisfactoryforest track · 22 min for the last stretch
Character of the water
Rosjön lies in the cold north — a northern nutrient-rich lowland lake.
The surroundings
The lake lies half-remote, a fair way from the nearest road, tucked into woodland.
Shallow throughout (max 4 m), with reeds and vegetation over large areas — water that warms fast in spring.
Permits & rules
Fishing permit required — Rosjön FVOF. Day permit ~100 kr · annual permit ~500 kr.
- Pike: keep at most one over 75 cm per day.
- Handheld tackle only. Respect the protected zones at the inlets and outlets.
Species in Rosjön
perch predatory fish
typically ~22 cm · can reach 45 cm
Perch grazes the rich water in schools — where there's one, there are more.
pike predatory fish
typically ~62 cm · can reach 120 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
ruffe perch family
typically ~12 cm · can reach 22 cm
Down on the bottom ruffe sifts the soft ground — patience beats speed here.
Fishing Rosjön
perch and pike sit at the top of the food chain in Rosjön, carried by roach, bream and ruffe. The nutrient-rich water means plenty of baitfish — and predators that grow fat on them.
Whoever fishes Rosjön regularly builds something of their own: a log of what took, where and when. That's how the water gives up its patterns — cast by cast, never all at once.
General rules of thumb for this kind of water
- Nutrient-rich lakes hold plenty of baitfish but often murky water.
The catch board
- 1Linnea Korhonenperch20 cm
- 2Erik Schmidtperch19 cm
- 3Heike Häggperch18 cm
- 4Wolfgang Nyströmroach18 cm
- 5Karin Erikssonroach16 cm
- 6Björn Strandruffe10 cm
Species records here
perch20 cmLinnea Korhonen
roach18 cmWolfgang Nyström
ruffe10 cmBjörn Strand
The same water, for real
