Berttjärnen

clear oligotrophic forest lake · 61°N

Real lakereal shorelinesources & method →

clarity 8.3 mmax depth 16 mpH 6.7oligotrophicstatus goodforest track · 22 min for the last stretch

Character of the water

Berttjärnen lies in central Sweden — a clear oligotrophic forest lake. The water is crystal-clear and the fish skittish in the sharp light. In summer a thermocline settles around 10 m and splits the lake into two worlds.

The surroundings

The lake lies remote, ringed by forest and bog far from any road. Few find their way here — the water is untouched and the stock undisturbed.

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 — Berttjärnen FVOF. Day permit ~100 kr · annual permit ~500 kr.

Pike: keep at most one over 75 cm per day.
Handheld tackle only. Respect the protected zones at the inlets and outlets.

Species in Berttjärnen

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.

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 Berttjärnen

Berttjärnen holds 4 species, with perch, pike and burbot at the top of the chain and roach schooling beneath them. The depth gives the water two storeys — and the fish move between them with the season.

The fishing here follows the water's own rhythm: dawn and dusk have their windows, fronts close and open them, and the season moves the fish. No two sessions at Berttjärnen are alike.

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

1Linnea Vogelpike52 cm
2Elin Hansenburbot38 cm
3Anna Vainioperch20 cm
4Elin Hedlundperch18 cm
5Stefan Ekroach17 cm
6Per Krügerroach16 cm

Species records here

pike52 cmLinnea Vogel

burbot38 cmElin Hansen

perch20 cmAnna Vainio

roach16 cmPer Krüger

The same water, for real

This water's real catch reports — and the logbook for your own.Fångstrapport.sein Swedish

The real bite table for this water — for your next real session.Huggtabell.sein Swedish