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Lilla Mörttjärnen

southern nutrient-rich lowland lake · 58°N
clarity 1.5 mmax depth 19 mpH 7.4eutrophicstatus poorpaved road

Character of the water

Lilla Mörttjärnen lies in the south — a southern nutrient-rich lowland lake. In summer a thermocline settles around 9 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.

A small but surprisingly deep pocket (19 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Lilla Mörttjärnen 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 Lilla Mörttjärnen

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 Lilla Mörttjärnen

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

Whoever fishes Lilla Mörttjärnen 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

  • In deep, oxygenated lakes the predators seek cool depth in summer, shallower in spring and autumn.
  • Nutrient-rich lakes hold plenty of baitfish but often murky water.

The catch board

6 anglers · 12 catches
  1. 1Magnus Brandtpike56 cm
  2. 2Johan Karlssonzander42 cm
  3. 3Erik Holmzander40 cm
  4. 4Mikko Holmperch19 cm
  5. 5Emil Åströmroach17 cm
  6. 6Erik Schmidtruffe10 cm
Species records here
pike56 cmMagnus Brandt
zander42 cmJohan Karlsson
perch19 cmMikko Holm
roach17 cmEmil Åström
ruffe10 cmErik Schmidt
The same water, for real