Limestone · Karst · Zadarska / Dalmatia, HR

Zrmanja

Zrmanja — Zrmanja

Adriatic-draining karst river in Dalmatia — one of the last habitats for softmouth trout (Salmo obtusirostris), a rare endemic species.

Prime · Brown Trout
Streamer / Woolly Bugger · 6-10
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
90% confidence
What moved it
  • Level0.14 mLast reading 15h ago
  • Water temp12.6°C
  • ClarityClear
Today's fly
SW
Streamer / Woolly Bugger6-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.14 m
Last reading 15h ago
Water temp12.6°C
ClarityClear
Weather17°C
WindNE 6 km/h
Pressure1023 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
13°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
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
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
Brown Trout fly box

Ultra-clear spring-fed rivers with large educated trout. Sight fishing, technical presentation, fine tippets. Euro-nymphing dominant subsurface method. Exceptional dry-fly windows during hatch periods. Gacka is the flagship water.

SW
Streamer / Woolly BuggerTop
6-10 · Pattern
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
  • Croatian fishing licence + local permit.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Unac
47 km
Brown trout · Grayling
Gallery · 2
  1. Zrmanja — Zrmanja
    Zrmanja
  2. Terrain map of the venue
    Terrain map
About this water

Adriatic-draining karst river in Dalmatia — one of the last habitats for softmouth trout (Salmo obtusirostris), a rare endemic species. Also holds brown trout. Crystal-clear canyon water. Fishing heavily regulated to protect the endemic population. Fly-only, catch-and-release mandatory for softmouth.

  • Karst
Water quality (WFD)
  • Ecology: High
  • Chemical: Unknown

WFD classification · HRJKRN0257_001

The full read · show the working · for Brown Trout · confidence 90%
How the 89 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity79 × 12%9.5
Conditions total= 89
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 March → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts