Osasjön
southern nutrient-rich lowland lake · 57°N
clarity 1.5 mmax depth 4 mpH 7.4eutrophicstatus poorgravel road
Character of the water
Osasjön lies in the south — a southern nutrient-rich lowland lake.
The surroundings
The lake lies half-remote, a fair way from the nearest road, tucked into woodland.
Moderately deep (4 m) — shallow bays, the odd reef and a deeper channel through the middle.
Permits & rules
Fishing permit required — Osasjön FVOF. Day permit ~140 kr · annual permit ~700 kr.
- Zander: minimum size 45 cm · protected during the spawn (Apr–May).
- Pike: keep at most one over 75 cm per day.
- Handheld tackle only. Respect the protected zones at the inlets and outlets.
Species in Osasjön
perch predatory fish
typically ~10 cm · can reach 33 cm
The nutrient-rich water keeps perch moving constantly between the feeding grounds.
ål fish
typically ~55 cm · can reach 110 cm
Down on the bottom ål sifts the soft ground — patience beats speed here.
björkna fish
typically ~16 cm · can reach 30 cm
Björkna works the bottom in the dark — smell and feel come before everything else.
bream coarse fish
typically ~16 cm · can reach 25 cm
Bream works the bottom in the dark — smell and feel come before everything else.
färna fish
typically ~30 cm · can reach 60 cm
The nutrient-rich water keeps färna moving constantly between the feeding grounds.
pike predatory fish
typically ~41 cm · can reach 47 cm
Pike hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
ruffe perch family
typically ~6 cm · can reach 8 cm
Ruffe works the bottom in the dark — smell and feel come before everything else.
zander predatory fish
typically ~50 cm · can reach 95 cm
Zander hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
id fish
typically ~38 cm · can reach 75 cm
The nutrient-rich water keeps id moving constantly between the feeding grounds.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Down on the bottom burbot sifts the soft ground — patience beats speed here.
roach coarse fish
typically ~11 cm · can reach 20 cm
The nutrient-rich water keeps roach moving constantly between the feeding grounds.
nors fish
typically ~12 cm · can reach 22 cm
Nors follows the schools through open water — here today, gone tomorrow.
sarv fish
typically ~26 cm · can reach 26 cm
Sarv grazes the rich water in schools — where there's one, there are more.
whitefish whitefish
typically ~30 cm · can reach 55 cm
Whitefish roams the open water after the feed — a moving target.
vendace whitefish
typically ~16 cm · can reach 28 cm
Vendace follows the schools through open water — here today, gone tomorrow.
sutare fish
typically ~35 cm · can reach 60 cm
Sutare works the bottom in the dark — smell and feel come before everything else.
Fishing Osasjön
Osasjön holds 16 species, with perch, pike and zander at the top of the chain and ål, björkna and bream schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.
Every session at Osasjön is fished in whatever conditions hold right then — the same pressure, wind and light as over the real water. What bites today isn't what bit the day before, and those who return learn the water for real.
General rules of thumb for this kind of water
- Nutrient-rich lakes hold plenty of baitfish but often murky water.
The catch board
- 1Axel Nieminenzander41 cm
- 2Hanna Brandtburbot37 cm
- 3Anders Månssonfärna25 cm
- 4Sören Björkvendace13 cm
- 5Gustav Karlssonbjörkna13 cm
- 6Per Holmroach9 cm
Species records here
zander41 cmAxel Nieminen
burbot37 cmHanna Brandt
färna25 cmAnders Månsson
vendace13 cmSören Björk
björkna13 cmGustav Karlsson
roach9 cmPer Holm
The same water, for real
