Angler Legend
← Map

Tresjön

northern clear oligotrophic forest lake · 65°N
Real lakereal shorelinesources & method
clarity 8.2 mmax depth 16 mpH 6.7oligotrophicstatus goodpaved road

Character of the water

Tresjön lies in the cold north — a northern clear oligotrophic forest lake. The water is crystal-clear and the fish skittish in the sharp light. In summer a thermocline settles around 8 m and splits the lake into two worlds.

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.

A small but surprisingly deep pocket (16 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

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

perch predatory fish
typically ~22 cm · can reach 45 cm
Perch moves carefully in the clear water — small mouthfuls, many of them.
pike predatory fish
typically ~62 cm · can reach 120 cm
In the clear water pike picks its moments — wary, but relentless once committed.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach moves carefully in the clear water — small mouthfuls, many of them.
trout salmonids
typically ~35 cm · can reach 70 cm
In the clear water trout picks its moments — wary, but relentless once committed.
whitefish whitefish
typically ~30 cm · can reach 55 cm
Whitefish holds in the open water column where light and temperature set the day.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot holds the bottom even in clear water — shade and depth are its cover.

Fishing Tresjön

The species list of Tresjön runs to 6. The predators — perch, pike and trout — hunt where the baitfish gather, and on a water this size you soon learn where it holds its fish.

Every session at Tresjön 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

  • Clear water makes fish light-shy — dawn, dusk and night are usually best.
  • In deep, oxygenated lakes the predators seek cool depth in summer, shallower in spring and autumn.

The catch board

6 anglers · 12 catches
  1. 1Mats Åbergpike54 cm
  2. 2Maria Åbergburbot37 cm
  3. 3Emil Lundtrout30 cm
  4. 4Karin Schmidtperch18 cm
  5. 5Karl Raskperch18 cm
  6. 6Ole Krügerroach14 cm
Species records here
pike54 cmMats Åberg
burbot37 cmMaria Åberg
trout30 cmEmil Lund
perch18 cmKarl Rask
roach14 cmOle Krüger
The same water, for real