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Øvre Ongsjøen

acidified forest lake · 61°N
Real lakereal shorelinesources & method
clarity 7.3 mmax depth 5 mpH 5.4oligotrophicstatus unsatisfactorygravel road

Character of the water

Øvre Ongsjøen lies in central Sweden — a acidified forest lake. The water is crystal-clear and the fish skittish in the sharp light. 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.

Moderately deep (5 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Øvre Ongsjøen 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 Øvre Ongsjøen

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 Øvre Ongsjøen

The species list of Øvre Ongsjøen 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.

Every session at Øvre Ongsjøen is fished in whatever conditions hold right then — the same pressure, wind and light as over the real water. What bites today isn't what bit the day before, and those who return learn the water for real.

General rules of thumb for this kind of water

  • Clear water makes fish light-shy — dawn, dusk and night are usually best.
  • Acidified water yields few, hardy species.

The catch board

6 anglers · 12 catches
  1. 1Rickard Olofssonpike57 cm
  2. 2Heike Holmpike55 cm
  3. 3Johan Karlssonpike53 cm
  4. 4Björn Falkpike51 cm
  5. 5Jukka Vogelpike50 cm
  6. 6Mats Vainioperch19 cm
Species records here
pike57 cmRickard Olofsson
perch19 cmMats Vainio
The same water, for real