Kattjärn
nutrient-rich lowland lake · 60°N
clarity 1.8 mmax depth 7 mpH 5.8eutrophicstatus poorgravel road
Character of the water
Kattjärn lies in central Sweden — a nutrient-rich lowland lake.
The surroundings
The lake lies half-remote, a fair way from the nearest road, tucked into woodland.
Moderately deep (7 m) — shallow bays, the odd reef and a deeper channel through the middle.
Permits & rules
Fishing permit required — Kattjärn FVOF. Day permit ~140 kr · annual permit ~700 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 Kattjärn
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 Kattjärn
perch, pike and zander sit at the top of the food chain in Kattjärn, carried by roach, bream and ruffe. The nutrient-rich water means plenty of baitfish — and predators that grow fat on them.
Whoever fishes Kattjärn 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
- Nutrient-rich lakes hold plenty of baitfish but often murky water.
The catch board
- 1Andreas Olofssonbream32 cm
- 2Nils Nieminenbream31 cm
- 3Erik Sandströmroach14 cm
- 4Roland Lundruffe14 cm
- 5Anna Nieminenruffe10 cm
- 6Rickard Raskruffe10 cm
Species records here
bream32 cmAndreas Olofsson
ruffe14 cmRoland Lund
roach14 cmErik Sandström
The same water, for real
