Spate · Mixed · Västra Götaland, SE

Slumpån (Göta älvs Lilla Edet–Trollhättan)

Slumpån (Göta älvs Lilla Edet–Trollhättan) fishing venue photo

Göta älvs Lilla Edet–Trollhättan fiskevårdsområde (formed 1991, 132 rights-holders) controls the stretch of Sweden's largest river from north of the Lilla Edet power station up to the suspension bridge in Trollhättan, plus the tributary Slumpån up to Stångforsen.

Good · Atlantic Salmon
Goodlive now
A good day — worth the effort
Low and clear — careful approach country. Small, sparse flies, long leader, careful approach.
50% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp14.9°C
  • ClarityClear
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp14.9°C
ClarityClear
Weather13°C
WindS 1 km/h
Pressure1003 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Atlantic Salmon
Ideal
15°C est.ideal 10–16°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning into early afternoon.
Where
Pool tails, steadier runs, and any water with pace.
Method
Fish a sensible line-and-fly combination for the height and pace of water.
Kit
13 ft #8/9 double-hander in spate, 10 ft #8 single in low water. Floating line plus a fast-sink tip. 12–15 lb fluoro tippet.
Why this works
Good — water temperature is working for you, but time of day is the limiting factor today.
Likely species
Mayflies
Caddisflies
Stoneflies
Blackflies
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Sea trout runRun
1
2
2
2
2
2
1
Autumn DunHatch
2
3
2
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Beats · 2 · 1 reaches

Göta älvs Lilla Edet–Trollhättan FVO's water is not one uniform stretch — it's the wide main-stem river from north of the Lilla Edet power station (marked by buoys) up to and including the suspension bridge in Trollhättan, plus the distinct tributary Slumpån running up to Stångeforsen. One ticket covers both. Official club rules confirmed directly from iFiske (2026-08-21): 45cm minimum for salmon/sea trout/zander, closed 15 Oct–31 Mar, max 2 rods/person, max 2 salmon/day, eel protected year-round, under-15s free. The 2026 EU Baltic salmon rule (wild fish must be released, only fin-clipped hatchery salmon kept) applies on top of these local rules.

Göta älvs Lilla Edet–Trollhättan FVO · 2 beatsDay rods
Göta älv main stem — Lilla Edet to Trollhättan, Slumpån — tributary up to Stångforsen
The 2 beats
Göta älv main stem — Lilla Edet to TrollhättanDay tickets
Göta älvs Lilla Edet–Trollhättan FVO
The broad main-stem reach of Göta älv from north of the Lilla Edet power station up to the suspension bridge in Trollhättan — big-river water on one of Sweden's most significant salmon systems, alongside a genuine mixed coarse fishery (pike, perch, zander, burbot, eel).
Official club rules (iFiske, confirmed 2026-08-21): 45cm minimum (salmon/sea trout/zander), closed season 15 Oct–31 Mar, max 2 rods/person, max 2 salmon/day, eel protected year-round. Only adipose-fin-clipped salmon may be kept per the 2026 EU Baltic rule — wild salmon must be released regardless of local size/season rules.
Slumpån — tributary up to StångforsenDay tickets
Göta älvs Lilla Edet–Trollhättan FVO
The named tributary reach up to Stångforsen — a smaller-scale, more intimate alternative to the Göta älv main stem, covered by the same FVO permit.
Official club rules (iFiske, confirmed 2026-08-21): 45cm minimum (salmon/sea trout/zander), closed season 15 Oct–31 Mar, max 2 rods/person, max 2 salmon/day, eel protected year-round. Only adipose-fin-clipped salmon may be kept per the 2026 EU Baltic rule — wild salmon must be released regardless of local size/season rules.
Permits & access
Permit required — see local rules.
  • Day/week/season ticket via iFiske
  • Official club rules (confirmed 2026-08-21): 45cm minimum size for salmon, sea trout and zander; closed season 15 Oct–31 Mar; max 2 rods/person; max 2 salmon/day; eel fully protected year-round; under-15s fish free
  • On top of this, the 2026 EU Baltic salmon rule requires releasing any wild (unclipped) salmon — only adipose-fin-clipped hatchery fish may be kept.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Örekilsälven
40 km
Salmon · Sea trout
Säveåns Övre
42 km
Brown trout
Jonseredsvattnet / Säveåns laxfiske
57 km
Salmon · Brown trout · Rainbow trout
Gallery · 2
  1. Mynningen i Göta älv av Slumpån, som är en vänsterbiflod till Göta älv
    Mynningen i Göta älv av Slumpån, som är en vänsterbiflod till Göta älv
  2. Terrain map of the venue
    Terrain map
About this water

Göta älvs Lilla Edet–Trollhättan fiskevårdsområde (formed 1991, 132 rights-holders) controls the stretch of Sweden's largest river from north of the Lilla Edet power station up to the suspension bridge in Trollhättan, plus the tributary Slumpån up to Stångforsen. This is genuine big-river salmon and sea-trout water on one of the country's most significant Atlantic salmon systems — Göta älv carries over 20 fish species in total, with pike, perch, zander, burbot and eel alongside the migratory run. Day tickets (50 SEK), weekly (100 SEK) and season (200 SEK) permits are sold via iFiske; under-15s fish free. Official rules: 45cm minimum size for salmon, sea trout and zander, closed season 15 Oct–31 Mar, max 2 rods/person, max 2 salmon/day, eel fully protected year-round. Slumpån itself is the named tributary reach within this larger water — a quieter, smaller-scale alternative to the broad main stem.

  • Mixed
Water quality (WFD)
  • Ecology: Unknown
  • Chemical: Unknown
Why this score · for Atlantic Salmon
  • Temperature10030% weight
  • Flow6025% weight
  • Clarity9520% weight
  • Feeding Time1015% weight
  • Pressure8510% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 1 April → 14 October
  • Sea trout 1 April → 14 October
Related guides
Atlantic Salmonsalmon tacticsGrayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts