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Fish counter · TiVA FC

Nykvarn

Stångån
Active Latest fish today 09:45
Latest fish
today 09:45

Trout this year

Net means up minus down.

Trout this year, net0↑ 1 up · ↓ 1 down

The latest fish

20 clips
10 cm
Trouttoday 09:45
↓ Down
20 cm
Perchtoday 09:14
↑ Up
9 cm
Perchtoday 08:57
↓ Down
15 cm
Perchtoday 08:56
↑ Up
9 cm
Bleaktoday 01:39
↓ Down
82 cm
Mammaltoday 01:07
↓ Down
19 cm
Perchtoday 00:02
↑ Up
18 cm
Perchyesterday 18:36
↑ Up
40 cm
Eelyesterday 18:31
↓ Down
16 cm
Perchyesterday 17:58
↑ Up
25 cm
Perchyesterday 17:39
↑ Up
10 cm
Bleakyesterday 17:22
↓ Down
9 cm
Bleakyesterday 16:16
↓ Down
29 cm
Perchyesterday 15:58
↓ Down
9 cm
Bleakyesterday 15:49
↓ Down
34 cm
Perchyesterday 14:53
↑ Up
24 cm
Perchyesterday 14:53
↓ Down
10 cm
Bleakyesterday 13:31
↓ Down
17 cm
Perchyesterday 13:29
↓ Down
32 cm
Perchyesterday 12:57
↓ Down

Highlights

Clips picked by TiVA.

36 cm
Perch2 Oct 11:36
↑ Up
31 cm
Perch2 Oct 11:35
↓ Down
31 cm
Perch2 Oct 11:09
↓ Down
63 cm
Mammal30 Sep 23:39
↓ Down
78 cm
Bird-Mammal25 Sep 02:24
↑ Up
68 cm
Bird-Mammal21 Sep 02:07
↑ Up
55 cm
Bird-Mammal13 Jul 21:26
↑ Up
46 cm
Asp11 Apr 08:37
↓ Down
23 cm
Asp11 Apr 07:54
↑ Up

Fish per day

3 OCT10 OCT17 OCT24 OCT 930 176 SEPOCT 930 176 11 APRMAYJUNJULSEPOCT 930 176
UpDown Flow (m³/s)Water temperature (°C)
Flow and temperature: SMHI Vattenwebb (S-HYPE), modelled values.

Species this year

16,641 identified fish
  • Perch ↑ 7,675 · ↓ 7,470 · 15,145
  • Bleak ↑ 454 · ↓ 76 · 530
  • Roach ↑ 190 · ↓ 213 · 403
  • Bird-Mammal ↑ 87 · ↓ 300 · 387
  • Mammal ↑ 15 · ↓ 39 · 54
  • Eel ↑ 10 · ↓ 24 · 34
  • Tench ↑ 21 · ↓ 3 · 24
  • Bream ↑ 5 · ↓ 14 · 19
  • Other (8 species) ↑ 18 · ↓ 27 · 45
UpDown

About the counter

The fish counter at Nykvarn films the fish passing by, and an AI model identifies species and direction for each clip.

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.

“This year” counts from 1 January 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: fiskdata@tiva.se, tiva.se