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Gröntjärnarna

northern acidified brown forest lake · 64°N
Real lakereal shorelinesources & method
clarity 1.8 mmax depth 15 mpH 5.5oligotrophic · humicstatus unsatisfactoryforest track · 22 min for the last stretch

Character of the water

Gröntjärnarna lies in the cold north — a northern acidified brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. 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 lies half-remote, a fair way from the nearest road, tucked into woodland.

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 — Gröntjärnarna 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 Gröntjärnarna

perch predatory fish
typically ~22 cm · can reach 45 cm
The nutrient-rich water keeps perch moving constantly between the feeding grounds.
pike predatory fish
typically ~62 cm · can reach 120 cm
Pike hunts by feel more than sight in the stained water — short, hard strikes close to the bait.

Fishing Gröntjärnarna

The species list of Gröntjärnarna runs to 2. The predators — perch and pike — hunt where the baitfish gather, and on a water this size you soon learn where it holds its fish.

Whoever fishes Gröntjärnarna regularly builds something of their own: a log of what took, where and when. That's how the water gives up its patterns — cast by cast, never all at once.

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.
  • 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. 1Jürgen Häggpike51 cm
  2. 2Maria Johansenperch21 cm
  3. 3Axel Nyströmperch20 cm
  4. 4Ole Krügerperch20 cm
  5. 5Heike Häggperch19 cm
  6. 6Ole Björkperch19 cm
Species records here
pike51 cmJürgen Hägg
perch20 cmAxel Nyström
The same water, for real