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Iso Riivijärvi

northern acidified forest lake · 66°N
Real lakereal shorelinesources & method
clarity 2.9 mmax depth 3 mpH 5.3mesotrophicstatus unsatisfactorygravel road

Character of the water

Iso Riivijärvi lies in the cold north — a northern acidified forest lake. 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.

Shallow throughout (max 3 m), with reeds and vegetation over large areas — water that warms fast in spring.

Permits & rules

Fishing permit required — Iso Riivijärvi 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 Iso Riivijärvi

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 Iso Riivijärvi

Iso Riivijärvi holds 2 species, with perch and pike at the top of the chain. The modest depth keeps most of the fishing within reach of the bank.

Every session at Iso Riivijärvi 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

  • Acidified water yields few, hardy species.

The catch board

6 anglers · 12 catches
  1. 1Jukka Erikssonpike54 cm
  2. 2Torbjörn Schmidtpike52 cm
  3. 3Per Nyströmpike49 cm
  4. 4Nils Åbergpike49 cm
  5. 5Karin Johansenperch22 cm
  6. 6Sören Dahlperch18 cm
Species records here
pike52 cmTorbjörn Schmidt
perch18 cmSören Dahl
The same water, for real