Karst · Limestone · Franche-Comté / Doubs, FR

Reverotte

Gigot, confluence Dessoubre-Reverotte
Poor · Grayling
Pink Grayling Bug · Hook 16
New ruleReported 17 Jul 2026

Severe drought restrictions (crise) in force

VigiEau lists this venue's surface-water zone (Plateau calcaire jurassien, dépt 25) at crise, under an official préfectoral drought arrêté. Fishing is not itself banned by it, but water levels are low — go gently on stressed fish.

Arrêté préfectoral n°37370 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

Closed season
Out of season. Try elsewhere.
Closed — confidence not applicable today.
What moved it
  • LevelProxyvia Cusancin
  • Water temp9.6°C
  • ClarityClear
Today's fly
Pink Grayling Bug
Pink Grayling BugHook 16
in season · matches water height · all-rounder
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Cusancin
Water temp9.6°C
ClarityClear
Weather5°C
WindS 8 km/h
Pressure1024 hPa
Rain · recent0.0 mm
Rain · ahead1.6 mm

No gauge on this water — conditions are inferred from Cusancin. The trend transfers, the absolute level does not.

Water temperature for Grayling
Ideal
10°C est.ideal 4–14°C
0°14°28°
How to fish it · for Grayling
When
Midday window — grayling feed best from late morning into early afternoon.
Where
Work runs and glides — grayling shoal in the bottom third of the water column.
Method
Tight-line nymph the bottom third with weighted patterns.
Kit
10 ft #3 rod, floating line, long leader to 4 lb fluoro for nymphs.
Likely species
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 10 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

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

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
1
2
2
2
1
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Brown SedgeHatch
2
3
3
3
2
Small SpurwingHatch
2
3
3
3
2
Small Dark OliveHatch
2
3
3
3
2

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

Ranked for today
Fly box · Grayling
Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season · matches water height
Permits & access
Permit required — see local rules.
  • AAPPMA local — shared management with Dessoubre beats in places
  • Fly-only and no-kill on some stretches.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Cusancin
22 km
0
Brown trout · Grayling
Doubs (France)
35 km
0
Brown trout · Grayling · Chub
Dessoubre
13 km
Brown trout · Grayling
Doubs
21 km
Brown trout · Grayling
Les piscicultures Côte
40 km
Rainbow trout
Gallery · 2
  1. Gigot, confluence Dessoubre-Reverotte
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Poor
  • Chemical: Unknown
What this classification means

WFD ecological status Good → Poor corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRDR10873 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · FRDR10873

The full read · show the working · for Grayling · confidence 55%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time10 × 13%1.3
Pressure80 × 7%5.6
Insect activity59 × 12%7.1
Conditions total= 75
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Cusancinproxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2. Saturday im March → 3. Sunday im September
  • Grayling 3. Saturday im May → 3. Sunday im September

    France national rule: grayling opens 3rd Saturday of May in all waters. In 1st category (salmonid) rivers, grayling closes with the trout season on the 3rd Sunday of September. Departmental regulations may impose additional restrictions. Always check the relevant département's 2026 arrêté préfectoral.

Related guides
Grayling Playbookgrayling tacticsPyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts