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Trehörningssjön

northern humic brown forest lake · 65°N
Real lakereal shoreline9 species on recordsources & method
clarity 1.7 mmax depth 8 mpH 5.5oligotrophic · humicstatus moderategravel road

Character of the water

Trehörningssjön lies in the cold north — a northern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length.

The surroundings

The lake lies half-remote, a fair way from the nearest road, tucked into woodland.

Moderately deep (8 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Trehörningssjön FVOF. Day permit ~140 kr · annual permit ~700 kr.

  • Pike: keep at most one over 75 cm per day.
  • Trout & Arctic char: protected during the autumn spawn · catch-and-release on certain stretches.
  • Handheld tackle only. Respect the protected zones at the inlets and outlets.

Species in Trehörningssjön

perch predatory fish
typically ~22 cm · can reach 45 cm
The nutrient-rich water keeps perch moving constantly between the feeding grounds.
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.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Down on the bottom burbot sifts the soft ground — patience beats speed here.
löja fish
typically ~12 cm · can reach 20 cm
The nutrient-rich water keeps löja moving constantly between the feeding grounds.
roach coarse fish
typically ~18 cm · can reach 32 cm
The nutrient-rich water keeps roach moving constantly between the feeding grounds.
trout salmonids
typically ~35 cm · can reach 70 cm
Trout hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
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.

Fishing Trehörningssjön

The species list of Trehörningssjön runs to 9. The predators — perch, pike and burbot — hunt where the baitfish gather, and on a water this size you soon learn where it holds its fish.

Every session at Trehörningssjön 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.

The catch board

6 anglers · 12 catches
  1. 1Bjørn Boströmwhitefish26 cm
  2. 2Henrik Bergperch19 cm
  3. 3Kjell Dahlroach16 cm
  4. 4Axel Raskroach16 cm
  5. 5Emil Lundruffe9 cm
  6. 6Björn Strandlöja9 cm
Species records here
whitefish26 cmBjørn Boström
perch19 cmHenrik Berg
roach16 cmKjell Dahl
löja9 cmBjörn Strand
ruffe9 cmEmil Lund
The same water, for real