Gammarids
- Ecology: Good
- Chemical: Unknown
WFD classification · ES018MSPFES236MAR002170
Rules at a glance
- Public water
- Licence required
Water temperature for Brown Trout
Ideal13°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Hatch timeline · tomorrowPeak at 18 Uhr
12 Uhr(now) — Black Gnat
Stage: On emergersApproach: Emerger or dryActivity: 55%
Also:Autumn Needle Fly49%Iron Blue33%
Peak emergence window9 food groups active
Peak activity at 18 Uhr — Caperer (Caperer, 10 food groups active)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
Top
22-24 · Pattern
Upstream dry, on top
Beats · 1
Porcia · 3.2 kmTrout permit
Trout permit stretch — La Corveira, puente del ferrocarril to 100 m por aguas arriba de la zona de embarcadero de las Barcas en Gobaz.
Beat detail
Daily permit required, keep within bag limits
Upstream: La Corveira, puente del ferrocarril
Downstream: 100 m por aguas arriba de la zona de embarcadero de las Barcas en Gobaz
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Asturian fishing licence required
- In 2026 many trout waters run to 15 August, but salmon zones, mountain zones, tramos sin muerte, and border stretches can differ
- Check local coto and tramo rules before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Río Porcía Terrain map
Water quality (WFD)
The full read · show the working · for Brown Trout · confidence 90%
How the 88 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity77 × 12%9.2
Conditions total= 88
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts
Río Porcía
Water temperature for Brown Trout
Ideal13°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Hatch timeline · tomorrowPeak at 18 Uhr
12 Uhr(now) — Black Gnat
Stage: On emergersApproach: Emerger or dryActivity: 55%
Also:Autumn Needle Fly49%Iron Blue33%
Peak emergence window9 food groups active
Peak activity at 18 Uhr — Caperer (Caperer, 10 food groups active)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
Top
22-24 · Pattern
Upstream dry, on top
Beats · 1
Porcia · 3.2 kmTrout permit
Trout permit stretch — La Corveira, puente del ferrocarril to 100 m por aguas arriba de la zona de embarcadero de las Barcas en Gobaz.
Beat detail
Daily permit required, keep within bag limits
Upstream: La Corveira, puente del ferrocarril
Downstream: 100 m por aguas arriba de la zona de embarcadero de las Barcas en Gobaz
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Asturian fishing licence required
- In 2026 many trout waters run to 15 August, but salmon zones, mountain zones, tramos sin muerte, and border stretches can differ
- Check local coto and tramo rules before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Río Porcía Terrain map
Water quality (WFD)
- Ecology: Good
- Chemical: Unknown
WFD classification · ES018MSPFES236MAR002170
The full read · show the working · for Brown Trout · confidence 90%
How the 88 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity77 × 12%9.2
Conditions total= 88
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts