Stoneflies
Caddisflies
- Ecology: Moderate
Water quality details
- Dissolved oxygen: High
- Ammonia (Phys-Chem): High
- pH: High
- Phosphate: High
- Temperature: High
EA (England) · GB108046008350
Water temperature for Sea Trout
Warm — slow16°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Good — water clarity is right today, though time of day could be better.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- CapererAlso possibleLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Hatch timeline · todayPeak at 6h
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
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.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Sea Trout
Local classics: Half Stone·Blue Upright·Pheasant Tail Nymph
Top
1-2 inch · Tube
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
8-12 · Streamer
Slim and mobile — fished sunk through the pool when surface work is not producing. Consistently takes fish that will not come to the surface.
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Beats · 2
Dartmoor headwaters — East & West Dart (Duchy water)Access varies
Stretches of the East and West Dart and their tributaries on Dartmoor are open on Duchy of Cornwall permits — the main visitor access on the moor.
Visit official site ↗Dart Angling Association waterAccess varies
The DAA holds around nine miles of the Dart, a mix of single and double-bank fishing for salmon, sea trout and brown trout.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
River Dart — image via Wikipedia (River Dart) Terrain map
Water quality (WFD)
Why this score · for Sea Trout
- Temperature5928% weight
- Flow8022% weight
- Clarity8518% weight
- Feeding Time5013% weight
- Pressure857% weight
- Insect activity5912% weight
Directions
Seasons & zones
- Salmon 1 March → 30 September
- Trout 15 March → 30 September
Sea trout: Variable seasonal (2026)
Salmon: Negligible (2026) — EA 2024 Salmon Stocks Assessment classifies this river 'at risk' — egg deposition below Conservation Limit. Conservation priority; not a salmon fishing destination. The Dart has lost most of its salmon run over the past two decades.
Related guides
Casting instructors near here
Booking & contacts
Permits & access
Boards & regulators
River Dart
Water temperature for Sea Trout
Warm — slow16°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Good — water clarity is right today, though time of day could be better.
Likely species
Caddisflies
- Net-spinning caddisMost likelyLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- CapererAlso possibleLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Hatch timeline · todayPeak at 6h
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
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.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Sea Trout
Local classics: Half Stone·Blue Upright·Pheasant Tail Nymph
Top
1-2 inch · Tube
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
8-12 · Streamer
Slim and mobile — fished sunk through the pool when surface work is not producing. Consistently takes fish that will not come to the surface.
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Beats · 2
Dartmoor headwaters — East & West Dart (Duchy water)Access varies
Stretches of the East and West Dart and their tributaries on Dartmoor are open on Duchy of Cornwall permits — the main visitor access on the moor.
Visit official site ↗Dart Angling Association waterAccess varies
The DAA holds around nine miles of the Dart, a mix of single and double-bank fishing for salmon, sea trout and brown trout.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
River Dart — image via Wikipedia (River Dart) Terrain map
Water quality (WFD)
- Ecology: Moderate
Water quality details
- Dissolved oxygen: High
- Ammonia (Phys-Chem): High
- pH: High
- Phosphate: High
- Temperature: High
EA (England) · GB108046008350
Why this score · for Sea Trout
- Temperature5928% weight
- Flow8022% weight
- Clarity8518% weight
- Feeding Time5013% weight
- Pressure857% weight
- Insect activity5912% weight
Directions
Seasons & zones
- Salmon 1 March → 30 September
- Trout 15 March → 30 September
Sea trout: Variable seasonal (2026)
Salmon: Negligible (2026) — EA 2024 Salmon Stocks Assessment classifies this river 'at risk' — egg deposition below Conservation Limit. Conservation priority; not a salmon fishing destination. The Dart has lost most of its salmon run over the past two decades.
Related guides
Casting instructors near here
Booking & contacts
Permits & access
Boards & regulators