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Gruvsjøen

nutrient-rich lowland lake · 63°N
Real lakereal shorelinesources & method
clarity 2.6 mmax depth 3 mpH 7.4eutrophicstatus unsatisfactorypaved road

Character of the water

Gruvsjøen lies in central Sweden — a 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.

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

Permits & rules

Fishing permit required — Gruvsjøen 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 Gruvsjøen

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.
zander predatory fish
typically ~50 cm · can reach 95 cm
In the murky light, zander shadows the baitfish and hits in short rushes.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
ruffe perch family
typically ~12 cm · can reach 22 cm
Down on the bottom ruffe sifts the soft ground — patience beats speed here.

Fishing Gruvsjøen

Gruvsjøen holds 6 species, with perch, pike and zander at the top of the chain and roach, bream and ruffe schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.

Every session at Gruvsjøen 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. 1Nils Nieminenpike53 cm
  2. 2Maria Olofssonpike51 cm
  3. 3Karin Månssonbream31 cm
  4. 4Astrid Wagnerbream31 cm
  5. 5Bjørn Boströmbream31 cm
  6. 6Kjell Björkperch18 cm
Species records here
pike53 cmNils Nieminen
bream31 cmBjørn Boström
perch18 cmKjell Björk
The same water, for real