Freestone · Limestone · Trentino-Alto Adige

Adige Tributaries (Trentino)

Adige Tributaries (Trentino) — Segonzano - Avisio, Prà e Cantilaga
Poor · Marble Trout
Blue-Winged Olive · 18-20
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
90% confidence
What moved it
  • LevelLiveTrend only — level not reported
  • Water temp23.0°C
  • ClarityClear
Today's fly
Blue-Winged Olive
Blue-Winged Olive18-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
Live
Trend only — level not reported
Water temp23.0°C
ClarityClear
Weather33°C
WindSW 10 km/h
Pressure1017 hPa
Rain · recent0.0 mm
Rain · ahead2.3 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Marble Trout
Warm — slow
23.0°Cideal 8–13°C
0°14°28°
How to fish it · for Marble Trout
When
Low-light is best — first and last light. April through October. Marbles are present in the lower reaches of several Adige tributaries; not every stretch holds them.
Where
Deeper glides in the lower reaches of tributaries that connect to marble-holding main-stem water. Upper tributaries are brown-trout-only.
Method
Streamer fishing on intermediate or sink-tip — methodical coverage of the deeper holding water. Single barbless mandatory on No-Kill beats; release with care, never lift for a photo.
Kit
9 to 10 ft #6/7, intermediate or fast-sink, 8 to 10 lb fluoro. Big baitfish streamers. Wet net for handling — fish from the net.
Why this works
Water at 23°C. This is the line where catch-and-release kills marble trout. Do not fish for them today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read 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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Evidence
Survey-backed · regionalModerate confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
March BrownHatch
2
3
2
Large StoneflyHatch
2
3
2

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

Ranked for today
Marble Trout fly box
Permits & access
Permit required — see local rules.
  • Italian fishing license (permesso di pesca) varies by provincia (province)
  • Barbless hooks often required on protected waters
  • Catch limits may apply.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 1
Water here at 23.0°C — too warm to fish Marble Trout safely. These are cooler.
Lake Molveno
14 km
~22°C
Brown trout · Char
Gallery · 2
  1. Adige Tributaries (Trentino) — Segonzano - Avisio, Prà e Cantilaga
    Segonzano - Avisio, Prà e Cantilaga
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

WFD ecological status Good → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody ITARW02AD06500020TN (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · ITARW02AD06500020TN

The full read · show the working · for Marble Trout · confidence 90%
How the 10 is built — score × weight = contribution
Temperature5 × 28%1.4
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity58 × 12%7.0
Limiting factor: Water temperature (23°C) is outside Marble Trout's preferred range (8–13°C)= 52
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 8–13 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2026-02-15 → 2026-10-07
  • Marble trout 2026-03-01 → 2026-09-30
Related guides
Euro Nymphingsubsurface methods
Booking & contacts