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Kärnsjön

southern humic brown forest lake · 59°N
Real lakereal shorelinemeasured max depth 38 m10 species on recordsizes from survey fishingreal water chemistrysources & method →
clarity 1.9 mmax depth 38 mpH 6.4mesotrophic · humicstatus goodforest track · 22 min for the last stretch
Fish Kärnsjön Buy forecast

Character of the water

Kärnsjön lies in the south — a southern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. In summer a thermocline settles around 10 m and splits the lake into two worlds.

The surroundings

The lake lies remote, ringed by forest and bog far from any road. Few find their way here — the water is untouched and the stock undisturbed.

Large and deep (38 m): a central basin ringed by drop-offs and shallow bays around the edges — varied bottom with many spots to read.

Permits & rules

Fishing permit required — Kärnsjön 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 Kärnsjön

perch predatory fish
typically ~19 cm · can reach 33 cm
Perch grazes the rich water in schools — where there's one, there are more.
ål fish
typically ~55 cm · can reach 110 cm
Ål works the bottom in the dark — smell and feel come before everything else.
bream coarse fish
typically ~28 cm · can reach 46 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.
ruffe perch family
typically ~12 cm · can reach 22 cm
Down on the bottom ruffe sifts the soft ground — patience beats speed here.
zander predatory fish
typically ~50 cm · can reach 95 cm
In the murky light, zander shadows the baitfish and hits in short rushes.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot works the bottom in the dark — smell and feel come before everything else.
roach coarse fish
typically ~20 cm · can reach 26 cm
Roach grazes the rich water in schools — where there's one, there are more.
nors fish
typically ~11 cm · can reach 25 cm
Nors roams the open water after the feed — a moving target.

Fishing Kärnsjön

Kärnsjön holds 10 species, with perch, pike and zander at the top of the chain and ål, bream and färna schooling beneath them. The depth gives the water two storeys — and the fish move between them with the season.

Every session at Kärnsjön 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

  • Brown, humic water dampens the light — fishing can be good even in the middle of the day.
  • In deep, oxygenated lakes the predators seek cool depth in summer, shallower in spring and autumn.

The catch board

6 anglers · 12 catches
  1. 1Jonas Krügerpike52 cm
  2. 2Bjørn Falkpike51 cm
  3. 3Magnus Hedlundbream25 cm
  4. 4Karl Boströmbream24 cm
  5. 5Jukka Sundinroach16 cm
  6. 6Kjell Vogelruffe10 cm
Species records here
pike51 cmBjørn Falk
bream25 cmMagnus Hedlund
roach16 cmJukka Sundin
ruffe10 cmKjell Vogel
The same water, for real
This water's real catch reports — and the logbook for your own.Fångstrapport.sein SwedishThe real bite table for this water — for your next real session.Huggtabell.sein Swedish