Birsjön
southern nutrient-rich lowland lake · 57°N
clarity 1.6 mmax depth 9 mpH 7.4eutrophicstatus unsatisfactorygravel road
Character of the water
Birsjön 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 (9 m) — shallow bays, the odd reef and a deeper channel through the middle.
Permits & rules
Fishing permit required — Birsjön FVOF. Day permit ~60 kr · annual permit ~300 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 Birsjön
perch predatory fish
typically ~22 cm · can reach 45 cm
Perch grazes the rich water in schools — where there's one, there are more.
asp fish
typically ~48 cm · can reach 90 cm
In the murky light, asp shadows the baitfish and hits in short rushes.
björkna fish
typically ~18 cm · can reach 35 cm
Down on the bottom björkna sifts the soft ground — patience beats speed here.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
färna fish
typically ~30 cm · can reach 60 cm
Färna 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.
zander predatory fish
typically ~50 cm · can reach 95 cm
In the murky light, zander shadows the baitfish and hits in short rushes.
id fish
typically ~38 cm · can reach 75 cm
Id grazes the rich water in schools — where there's one, there are more.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot works the bottom in the dark — smell and feel come before everything else.
mal fish
typically ~100 cm · can reach 250 cm
In the murky light, mal 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.
ruda fish
typically ~18 cm · can reach 42 cm
Down on the bottom ruda sifts the soft ground — patience beats speed here.
Fishing Birsjön
Birsjön holds 12 species, with perch, pike and zander at the top of the chain and asp, björkna and bream schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.
Whoever fishes Birsjön 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
- 1Fredrik Boströmmal82 cm
- 2Karin Johansenpike58 cm
- 3Petra Brandtpike55 cm
- 4Erik Olofssonzander49 cm
- 5Erik Raskfärna25 cm
- 6Jonas Wikströmbjörkna16 cm
Species records here
mal82 cmFredrik Boström
pike58 cmKarin Johansen
zander49 cmErik Olofsson
färna25 cmErik Rask
björkna16 cmJonas Wikström
The same water, for real
