Angler Legend
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Tretjärnarna

northern nutrient-rich lowland lake · 64°N
Real lakereal shorelinesources & method
clarity 1.5 mmax depth 11 mpH 7.4eutrophicstatus poorforest track · 22 min for the last stretch

Character of the water

Tretjärnarna lies in the cold north — a northern nutrient-rich lowland lake. In summer a thermocline settles around 7 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 (11 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Tretjärnarna FVOF. Day permit ~60 kr · annual permit ~300 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.

Fishing Tretjärnarna

The species list of Tretjärnarna runs to 5. The predators — perch, pike and zander — hunt where the baitfish gather, and on a water this size you soon learn where it holds its fish.

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

  • 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. 1Lars Boströmpike53 cm
  2. 2Oskar Lehmannpike52 cm
  3. 3Oskar Nilssonzander45 cm
  4. 4Magnus Brandtbream30 cm
  5. 5Emil Falkbream30 cm
  6. 6Wolfgang Krügerperch19 cm
Species records here
pike52 cmOskar Lehmann
zander45 cmOskar Nilsson
bream30 cmEmil Falk
perch19 cmWolfgang Krüger
The same water, for real