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Lilla Rosjön

southern acidified forest lake · 57°N
Real lakereal shorelinesources & method
clarity 7.3 mmax depth 15 mpH 5.4oligotrophicstatus unsatisfactorypaved road

Character of the water

Lilla Rosjön lies in the south — a southern acidified forest lake. The water is crystal-clear and the fish skittish in the sharp light. In summer a thermocline settles around 8 m and splits the lake into two worlds. Acidification has thinned life down to the hardiest few.

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 — Lilla Rosjön FVOF. Day permit ~60 kr · annual permit ~300 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 Lilla Rosjön

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.

Fishing Lilla Rosjön

Lilla Rosjön holds 2 species, with perch and pike at the top of the chain. 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 Lilla Rosjön 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.
  • Acidified water yields few, hardy species.

The catch board

6 anglers · 12 catches
  1. 1Bjørn Falkpike52 cm
  2. 2Stefan Strandpike49 cm
  3. 3Karin Sjöbergpike49 cm
  4. 4Henrik Nyströmpike49 cm
  5. 5Gustav Viklundperch20 cm
  6. 6Oskar Hedlundperch18 cm
Species records here
pike52 cmBjørn Falk
perch20 cmGustav Viklund
The same water, for real