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Nils-Jonsavattnet

northern nutrient-rich lowland lake · 64°N
Real lakereal shorelinesources & method
clarity 1.3 mmax depth 16 mpH 7.4eutrophicstatus poorgravel road

Character of the water

Nils-Jonsavattnet lies in the cold north — a northern nutrient-rich lowland lake. In summer a thermocline settles around 8 m and splits the lake into two worlds.

The surroundings

The lake lies half-remote, a fair way from the nearest road, tucked into woodland.

Moderately deep (16 m) — shallow bays, the odd reef and a deeper channel through the middle.

Permits & rules

Fishing permit required — Nils-Jonsavattnet FVOF. Day permit ~100 kr · annual permit ~500 kr.

  • Zander: minimum size 45 cm · protected during the spawn (Apr–May).
  • Pike: keep at most one over 75 cm per day.
  • Handheld tackle only. Respect the protected zones at the inlets and outlets.

Species in Nils-Jonsavattnet

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.
roach coarse fish
typically ~18 cm · can reach 32 cm
The nutrient-rich water keeps roach moving constantly between the feeding grounds.
zander predatory fish
typically ~50 cm · can reach 95 cm
Zander hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
bream coarse fish
typically ~38 cm · can reach 65 cm
Bream works the bottom in the dark — smell and feel come before everything else.
ruffe perch family
typically ~12 cm · can reach 22 cm
Ruffe works the bottom in the dark — smell and feel come before everything else.

Fishing Nils-Jonsavattnet

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

Whoever fishes Nils-Jonsavattnet 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

  • Stratified, oxygen-poor lakes push the fish up above the thermocline in summer.
  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Roland Lundzander51 cm
  2. 2Mikko Norénbream32 cm
  3. 3Jukka Sandströmperch18 cm
  4. 4Per Nyströmruffe12 cm
  5. 5Per Holmruffe10 cm
  6. 6Mats Lindqvistruffe10 cm
Species records here
zander51 cmRoland Lund
bream32 cmMikko Norén
perch18 cmJukka Sandström
ruffe10 cmPer Holm
The same water, for real