Angler Legend
← Map

Kojsjön

northern nutrient-rich lowland lake · 65°N
Real lakereal shorelinesources & method
clarity 1.6 mmax depth 5 mpH 7.4eutrophicstatus unsatisfactorypaved road

Character of the water

Kojsjön lies in the cold north — a northern nutrient-rich lowland lake.

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.

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

Permits & rules

Fishing permit required — Kojsjön 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 Kojsjön

perch predatory fish
typically ~22 cm · can reach 45 cm
Perch grazes the rich water in schools — where there's one, there are more.
pike predatory fish
typically ~62 cm · can reach 120 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.

Fishing Kojsjön

perch and pike sit at the top of the food chain in Kojsjön, carried by roach and bream. The nutrient-rich water means plenty of baitfish — and predators that grow fat on them.

Every session at Kojsjön 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

  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Jukka Erikssonpike55 cm
  2. 2Ole Krügerbream31 cm
  3. 3Mats Vainiobream30 cm
  4. 4Per Holmperch23 cm
  5. 5Torbjörn Brandtperch20 cm
  6. 6Karin Månssonperch19 cm
Species records here
pike55 cmJukka Eriksson
bream31 cmOle Krüger
perch20 cmTorbjörn Brandt
The same water, for real