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Fish counter · TiVA FC

Slussen

Söderström
Active Latest fish today 17:43
The latest fish in a film rebuilt every hour. Open full screen

Perch, bream and eel since 19 Feb

Net means up minus down.

Perch since 19 Feb, net768↑ 12,844 up · ↓ 12,076 down
Bream since 19 Feb, net9,221↑ 12,716 up · ↓ 3,495 down
Eel since 19 Feb, net95↑ 298 up · ↓ 203 down

The latest fish

20 clips
10 cm
Perchtoday 17:43
↓ Down
13 cm
Perchtoday 15:40
↑ Up
14 cm
Perchtoday 14:20
↑ Up
11 cm
Perchtoday 14:03
↓ Down
12 cm
Perchtoday 13:38
↓ Down
18 cm
Roachtoday 02:29
↑ Up
19 cm
Roachtoday 02:19
↑ Up
18 cm
Roachtoday 02:13
↑ Up
18 cm
Roachyesterday 23:33
↑ Up
17 cm
Perchyesterday 18:08
↑ Up
13 cm
Perchyesterday 17:36
↑ Up
16 cm
Perchyesterday 13:54
↑ Up
13 cm
Perchyesterday 08:28
↓ Down
16 cm
Perchyesterday 07:47
↓ Down
44 cm
Breamyesterday 06:49
↑ Up
49 cm
Breamyesterday 06:49
↓ Down
47 cm
Breamyesterday 06:49
↑ Up
48 cm
Breamyesterday 06:33
↓ Down
48 cm
Breamyesterday 06:32
↑ Up
52 cm
Breamyesterday 06:32
↓ Down

Highlights

Clips picked by TiVA.

20 cm
Vendace30 Sep 16:42
↑ Up
106 cm
Eel21 Aug 06:20
↑ Up
80 cm
Asp28 Jun 17:56
↓ Down
37 cm
Bream2 Jun 05:00
↑ Up
85 cm
Bird-Mammal19 May 08:26
↓ Down
79 cm
Bird-Mammal21 Apr 02:17
↑ Up

Fish per day

2 OCT9 OCT16 OCT23 OCT 290 120 AUGSEPOCT 1,187 280 MAYJUNJULAUGSEPOCT 1,590 1,619
UpDown Flow (m³/s)Water temperature (°C)
Flow and temperature: SMHI Vattenwebb (S-HYPE), modelled values.

Species since 19 Feb

57,611 identified fish
  • Perch ↑ 12,844 · ↓ 12,076 · 24,920
  • Bream ↑ 12,716 · ↓ 3,495 · 16,211
  • Roach ↑ 4,858 · ↓ 10,842 · 15,700
  • Eel ↑ 298 · ↓ 203 · 501
  • Bleak ↑ 48 · ↓ 30 · 78
  • Trout ↑ 34 · ↓ 30 · 64
  • Bird-Mammal ↑ 25 · ↓ 27 · 52
  • Silver Bream ↑ 9 · ↓ 25 · 34
  • Other (11 species) ↑ 28 · ↓ 23 · 51
UpDown

About the counter

Fiskvandringsleden i nya Slussen går genom Nils Ericsons sluss från 1850, dold under Norra slusskajen. Sedan sommaren 2024 kan fisken simma fritt mellan Saltsjön och Mälaren här, för första gången på flera hundra år.

Leden är drygt 100 meter lång. Stenar, bland annat från Gustav Vasas försvarsmur från 1500-talet, bryter strömmen så att även simsvaga arter som ål, mört och abborre tar sig igenom.

Fiskräknaren sitter i leden, närmast Mälaren. Den filmar varje fisk som passerar, och en AI-modell bedömer art, längd och simriktning. Anläggningen ägs av Stockholms stad.

Läs mer hos Stockholms stad.

About the figures

Every fish passing is counted with its direction, up or down. Net is up minus down.

Species and direction are identified by an AI model when the clip arrives, and no person has reviewed the figures yet. Some fish may get the wrong species, and the same fish can pass several times. Reviewed results are confirmed in a report after the season.

The figures count from 19 Feb 2026.

Flow and water temperature are SMHI's modelled values for the river (Vattenwebb, S-HYPE), not measurements at the counter.

Contact

Questions about the fish monitoring: info@tiva.se, tiva.se