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Trösken

nutrient-rich lowland lake · 61°N
Real lakereal shoreline10 species on recordsizes from survey fishingsources & method →
clarity 1.3 mmax depth 10 mpH 7.4eutrophicstatus poorpaved road
Fish Trösken Buy forecast

Character of the water

Trösken lies in central Sweden — a nutrient-rich lowland lake. In summer a thermocline settles around 5 m and splits the lake into two worlds.

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

Permits & rules

Fishing permit required — Trösken FVOF. Day permit ~140 kr · annual permit ~700 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 Trösken

perch predatory fish
typically ~9 cm · can reach 37 cm
Perch grazes the rich water in schools — where there's one, there are more.
björkna fish
typically ~12 cm · can reach 31 cm
Down on the bottom björkna sifts the soft ground — patience beats speed here.
bream coarse fish
typically ~35 cm · can reach 40 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
färna fish
typically ~29 cm · can reach 29 cm
Färna grazes the rich water in schools — where there's one, there are more.
pike predatory fish
typically ~49 cm · can reach 67 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
ruffe perch family
typically ~8 cm · can reach 17 cm
Down on the bottom ruffe sifts the soft ground — patience beats speed here.
roach coarse fish
typically ~10 cm · can reach 27 cm
Roach grazes the rich water in schools — where there's one, there are more.
ruda fish
typically ~40 cm · can reach 40 cm
Down on the bottom ruda sifts the soft ground — patience beats speed here.
sarv fish
typically ~12 cm · can reach 18 cm
The nutrient-rich water keeps sarv moving constantly between the feeding grounds.
sutare fish
typically ~45 cm · can reach 48 cm
Down on the bottom sutare sifts the soft ground — patience beats speed here.

Fishing Trösken

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

The fishing here follows the water's own rhythm: dawn and dusk have their windows, fronts close and open them, and the season moves the fish. No two sessions at Trösken are alike.

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. 1Jonas Weberpike41 cm
  2. 2Karl Månssonsutare36 cm
  3. 3Andreas Petterssonfärna22 cm
  4. 4Roland Holmperch11 cm
  5. 5Jukka Sundinroach10 cm
  6. 6Stefan Wikströmruffe7 cm
Species records here
pike41 cmJonas Weber
sutare36 cmKarl Månsson
färna22 cmAndreas Pettersson
perch11 cmRoland Holm
roach10 cmJukka Sundin
ruffe7 cmStefan Wikström
The same water, for real
This water's real catch reports — and the logbook for your own.Fångstrapport.sein SwedishThe real bite table for this water — for your next real session.Huggtabell.sein Swedish