Rostjärnen

Character of the water

Rostjärnen lies in the cold north — a northern humic brown forest lake. The tea-stained, humic water hides the bottom within an arm's length. In summer a thermocline settles around 7 m and splits the lake into two worlds.

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.

A small but surprisingly deep pocket (16 m) with steep drops straight down from shore — the bottom falls away fast.

Permits & rules

Fishing permit required — Rostjärnen 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.

Fishing Rostjärnen

perch, pike and zander sit at the top of the food chain in Rostjärnen, carried by roach and bream. The brown, humic water keeps visibility short — the fishing is more about vibration than sight.

Whoever fishes Rostjärnen 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

• Brown, humic water dampens the light — fishing can be good even in the middle of the day.
• Stratified, oxygen-poor lakes push the fish up above the thermocline in summer.
• Nutrient-rich lakes hold plenty of baitfish but often murky water.