Groptjärnen
Character of the water
Groptjärnen lies in the cold north — a northern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. 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 (10 m) — shallow bays, the odd reef and a deeper channel through the middle.
Permits & rules
Fishing permit required — Groptjärnen 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 Groptjärnen
Fishing Groptjärnen
The species list of Groptjärnen runs to 6. 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.
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 Groptjärnen are alike.
General rules of thumb for this kind of water
- Brown, humic water dampens the light — fishing can be good even in the middle of the day.
- Stratified, oxygen-poor lakes push the fish up above the thermocline in summer.
The catch board
- 1Ole Boströmpike59 cm
- 2Mikko Holmpike56 cm
- 3Ida Raskpike52 cm
- 4Stefan Brandtperch20 cm
- 5Jonas Blomroach15 cm
- 6Mats Hansenruffe10 cm