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Tretjärnarna

northern humic brown forest lake · 65°N
Real lakereal shorelinesources & method
clarity 0.9 mmax depth 10 mpH 6.7eutrophic · humicstatus poorforest track · 22 min for the last stretch

Character of the water

Tretjärnarna lies in the cold north — a northern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. In summer a thermocline settles around 6 m and splits the lake into two worlds.

The surroundings

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

Moderately deep (10 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Tretjärnarna 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 Tretjärnarna

perch predatory fish
typically ~22 cm · can reach 45 cm
Perch 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.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
zander predatory fish
typically ~50 cm · can reach 95 cm
In the murky light, zander shadows the baitfish and hits in short rushes.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot works the bottom in the dark — smell and feel come before everything else.

Fishing Tretjärnarna

Tretjärnarna holds 6 species, with perch, pike and zander at the top of the chain and roach and bream schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.

Whoever fishes Tretjärnarna 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.
  • Stratified, oxygen-poor lakes push the fish up above the thermocline in summer.
  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Uwe Sundinpike49 cm
  2. 2Elin Månssonbream32 cm
  3. 3Roland Krügerbream30 cm
  4. 4Oskar Vogelperch18 cm
  5. 5Jonas Häggroach16 cm
  6. 6Emil Brandtroach16 cm
Species records here
pike49 cmUwe Sundin
bream32 cmElin Månsson
perch18 cmOskar Vogel
roach16 cmJonas Hägg
The same water, for real