Angler Legend
← Map

Tennsjön

northern clear oligotrophic forest lake · 63°N
Real lakereal shorelinesources & method
clarity 6.2 mmax depth 15 mpH 6.7oligotrophicstatus goodpaved road

Character of the water

Tennsjön 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 6 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 (15 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Tennsjön 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 Tennsjön

perch predatory fish
typically ~22 cm · can reach 45 cm
Here perch lives on the small stuff — and rewards those who fish small and fine.
pike predatory fish
typically ~62 cm · can reach 120 cm
Pike is a sight-hunter here — the clear water means long follows before the take.
roach coarse fish
typically ~18 cm · can reach 32 cm
Here roach lives on the small stuff — and rewards those who fish small and fine.
trout salmonids
typically ~35 cm · can reach 70 cm
Trout is a sight-hunter here — the clear water means long follows before the take.
vendace whitefish
typically ~16 cm · can reach 28 cm
Vendace holds in the open water column where light and temperature set the day.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot lives down in the cool — the deep is its home ground all year.

Fishing Tennsjön

Tennsjön holds 6 species, with perch, pike and trout at the top of the chain and roach and vendace schooling beneath them. The depth gives the water two storeys — and the fish move between them with the season.

Every session at Tennsjön 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. 1Oskar Wagnerpike51 cm
  2. 2Stefan Ekburbot37 cm
  3. 3Anders Lindqvistburbot36 cm
  4. 4Gustav Åströmperch19 cm
  5. 5Eva Sandströmroach15 cm
  6. 6Mats Vainiovendace13 cm
Species records here
pike51 cmOskar Wagner
burbot37 cmStefan Ek
perch19 cmGustav Åström
roach15 cmEva Sandström
vendace13 cmMats Vainio
The same water, for real