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Kalvsjön

southern acidified brown forest lake · 57°N
Real lakereal shorelinemeasured max depth 10 m11 species on recordreal water chemistrysources & method →
clarity 6.4 mmax depth 10 mpH 5.3eutrophic · humicstatus poorno road · 50 min for the last stretch
Fish Kalvsjön Buy forecast

Character of the water

Kalvsjön lies in the south — a southern acidified brown forest lake. The water is crystal-clear and the fish skittish in the sharp light. Acidification has thinned life down to the hardiest few.

The surroundings

The lake lies remote, ringed by forest and bog far from any road. Few find their way here — the water is untouched and the stock undisturbed.

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

Permits & rules

Fishing permit required — Kalvsjön FVOF. Day permit ~100 kr · annual permit ~500 kr.

  • Pike: keep at most one over 75 cm per day.
  • Trout & Arctic char: protected during the autumn spawn · catch-and-release on certain stretches.
  • Handheld tackle only. Respect the protected zones at the inlets and outlets.

Species in Kalvsjön

perch predatory fish
typically ~22 cm · can reach 45 cm
Perch grazes the rich water in schools — where there's one, there are more.
ål fish
typically ~55 cm · can reach 110 cm
Ål works the bottom in the dark — smell and feel come before everything else.
bream coarse fish
typically ~38 cm · can reach 65 cm
Down on the bottom bream sifts the soft ground — patience beats speed here.
pike predatory fish
typically ~62 cm · can reach 120 cm
In the murky light, pike shadows the baitfish and hits in short rushes.
burbot bottom fish
typically ~45 cm · can reach 90 cm
Burbot works the bottom in the dark — smell and feel come before everything else.
roach coarse fish
typically ~18 cm · can reach 32 cm
Roach grazes the rich water in schools — where there's one, there are more.
trout salmonids
typically ~35 cm · can reach 70 cm
In the murky light, trout shadows the baitfish and hits in short rushes.
regnbåge fish
typically ~35 cm · can reach 70 cm
Regnbåge hunts by feel more than sight in the stained water — short, hard strikes close to the bait.
whitefish whitefish
typically ~30 cm · can reach 55 cm
Whitefish follows the schools through open water — here today, gone tomorrow.
vendace whitefish
typically ~16 cm · can reach 28 cm
Vendace roams the open water after the feed — a moving target.
sutare fish
typically ~35 cm · can reach 60 cm
Down on the bottom sutare sifts the soft ground — patience beats speed here.

Fishing Kalvsjön

Kalvsjön holds 11 species, with perch, pike and burbot at the top of the chain and ål, bream and roach schooling beneath them. The modest depth keeps most of the fishing within reach of the bank.

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 Kalvsjön are alike.

General rules of thumb for this kind of water

  • Clear water makes fish light-shy — dawn, dusk and night are usually best.
  • Acidified water yields few, hardy species.
  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Björn Norénål53 cm
  2. 2Kjell Brandtpike50 cm
  3. 3Kjell Björkbream30 cm
  4. 4Petra Brandttrout28 cm
  5. 5Anna Lundwhitefish25 cm
  6. 6Uwe Vainiowhitefish24 cm
Species records here
ål53 cmBjörn Norén
pike50 cmKjell Brandt
bream30 cmKjell Björk
trout28 cmPetra Brandt
whitefish25 cmAnna Lund
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