Kvarnsjön

mesotrophic stratified lake · 59°N

Real lakereal shorelinesources & method →

clarity 3.0 mmax depth 18 mpH 7.0mesotrophicstatus goodpaved road

Character of the water

Kvarnsjön lies in central Sweden — a mesotrophic stratified lake. 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 (18 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Kvarnsjön FVOF. Day permit ~140 kr · annual permit ~700 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 Kvarnsjön

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.

zander predatory fish

typically ~50 cm · can reach 95 cm

Zander is a sight-hunter here — the clear water means long follows before the take.

ruffe perch family

typically ~12 cm · can reach 22 cm

Ruffe holds the bottom even in clear water — shade and depth are its cover.

Fishing Kvarnsjön

Kvarnsjön holds 5 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 Kvarnsjön 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

1Ole Forsbergpike50 cm
2Gustav Schmidtzander46 cm
3Per Fischerperch18 cm
4Sören Björkperch18 cm
5Per Åbergruffe13 cm
6Elin Åbergruffe10 cm

Species records here

pike50 cmOle Forsberg

zander46 cmGustav Schmidt

perch18 cmSören Björk

ruffe13 cmPer Åberg

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