Gruvtjärnen

northern mesotrophic stratified lake · 64°N

Real lakereal shorelinesources & method →

clarity 2.8 mmax depth 39 mpH 7.0mesotrophicstatus goodforest track · 22 min for the last stretch

Character of the water

Gruvtjärnen lies in the cold north — a northern mesotrophic stratified lake. In summer a thermocline settles around 13 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.

A small but surprisingly deep pocket (39 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Gruvtjärnen FVOF. Day permit ~100 kr · annual permit ~500 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 Gruvtjärnen

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.

zander predatory fish

typically ~50 cm · can reach 95 cm

In the clear water zander picks its moments — wary, but relentless once committed.

ruffe perch family

typically ~12 cm · can reach 22 cm

Ruffe lives down in the cool — the deep is its home ground all year.

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 Gruvtjärnen

Gruvtjärnen holds 6 species, with perch, pike and zander at the top of the chain and roach and ruffe 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 Gruvtjärnen are alike.

General rules of thumb for this kind of water

In deep, oxygenated lakes the predators seek cool depth in summer, shallower in spring and autumn.

The catch board

6 anglers · 12 catches

1Karl Raskzander44 cm
2Jukka Åbergperch21 cm
3Jukka Åbergperch19 cm
4Kjell Brandtroach14 cm
5Lars Nilssonruffe10 cm
6Björn Boströmruffe10 cm

Species records here

zander44 cmKarl Rask

perch21 cmJukka Åberg

roach14 cmKjell Brandt

ruffe10 cmBjörn Boström

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