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Östra Trehörningen

southern acidified brown forest lake · 57°N
Real lakereal shoreline15 species on recordsources & method
clarity 1.0 mmax depth 5 mpH 4.6oligotrophic · humicstatus poorpaved road

Character of the water

Östra Trehörningen lies in the south — a southern acidified brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. Acidification has thinned life down to the hardiest few.

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.

Moderately deep (5 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Östra Trehörningen FVOF. Day permit ~100 kr · annual permit ~500 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 Östra Trehörningen

perch predatory fish
typically ~22 cm · can reach 45 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.
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.
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.
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.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
nors fish
typically ~12 cm · can reach 22 cm
Nors roams the open water after the feed — a moving target.
whitefish whitefish
typically ~30 cm · can reach 55 cm
Whitefish follows the schools through open water — here today, gone tomorrow.
vendace whitefish
typically ~16 cm · can reach 28 cm
Vendace roams the open water after the feed — a moving target.
sutare fish
typically ~35 cm · can reach 60 cm
Down on the bottom sutare sifts the soft ground — patience beats speed here.

Fishing Östra Trehörningen

Östra Trehörningen holds 15 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.

Whoever fishes Östra Trehörningen 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

  • Brown, humic water dampens the light — fishing can be good even in the middle of the day.
  • Acidified water yields few, hardy species.

The catch board

6 anglers · 12 catches
  1. 1Wolfgang Åbergål47 cm
  2. 2Magnus Lehmannburbot36 cm
  3. 3Klaus Karlssonsutare28 cm
  4. 4Heike Sundinperch19 cm
  5. 5Rickard Viklundperch19 cm
  6. 6Mikko Lindqvistbjörkna15 cm
Species records here
ål47 cmWolfgang Åberg
burbot36 cmMagnus Lehmann
sutare28 cmKlaus Karlsson
perch19 cmHeike Sundin
björkna15 cmMikko Lindqvist
The same water, for real