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Trollbosjön

humic brown tarn · 60°N
Real lakereal shorelinemeasured max depth 2 m16 species on recordreal water chemistrysources & method →
clarity 7.2 mmax depth 2 mpH 8.1eutrophic · humicstatus unsatisfactorypaved road
Fish Trollbosjön Buy forecast

Character of the water

Trollbosjön lies in central Sweden — a humic brown tarn. The water is crystal-clear and the fish skittish in the sharp light.

The surroundings

The lake sits close to town with a road right up to it — easy to reach, but hard-fished and exposed to nutrient runoff from the buildings and fields all around.

Shallow throughout (max 2 m), with reeds and vegetation over large areas — water that warms fast in spring.

Permits & rules

Fishing permit required — Trollbosjön 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 Trollbosjön

perch predatory fish
typically ~22 cm · can reach 45 cm
The nutrient-rich water keeps perch moving constantly between the feeding grounds.
björkna fish
typically ~18 cm · can reach 35 cm
Björkna works the bottom in the dark — smell and feel come before everything else.
bream coarse fish
typically ~38 cm · can reach 65 cm
Bream works the bottom in the dark — smell and feel come before everything else.
pike predatory fish
typically ~62 cm · can reach 120 cm
Pike hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
ruffe perch family
typically ~12 cm · can reach 22 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.
grayling fish
typically ~30 cm · can reach 50 cm
The nutrient-rich water keeps grayling moving constantly between the feeding grounds.
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 ~18 cm · can reach 32 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.
ruda fish
typically ~18 cm · can reach 42 cm
Ruda works the bottom in the dark — smell and feel come before everything else.
sarv fish
typically ~18 cm · can reach 38 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 Trollbosjön

Trollbosjön holds 16 species, with perch, pike and zander at the top of the chain and björkna, bream and ruffe schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.

The fishing here follows the water's own rhythm: dawn and dusk have their windows, fronts close and open them, and the season moves the fish. No two sessions at Trollbosjön are alike.

General rules of thumb for this kind of water

  • Clear water makes fish light-shy — dawn, dusk and night are usually best.
  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Johan Raskpike50 cm
  2. 2Uwe Nilssonzander44 cm
  3. 3Mikael Korhonenburbot36 cm
  4. 4Linnea Karlssonid35 cm
  5. 5Elin Åberggrayling24 cm
  6. 6Astrid Häggbjörkna15 cm
Species records here
pike50 cmJohan Rask
zander44 cmUwe Nilsson
burbot36 cmMikael Korhonen
id35 cmLinnea Karlsson
grayling24 cmElin Åberg
björkna15 cmAstrid Hägg
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