Freshwater Β· Spring and autumn; an emerging fly-fishing target
Iberian Barbel
Luciobarbus comizo
β IUCN Vulnerable. An Iberian endemic of the Ebro and other Spanish rivers; note that several close Luciobarbus relatives share its rivers. Fly fishing for it is a growing specialism β sight-fished fish in clear summer water. It is heavily affected by river regulation and water abstraction across its Spanish heartland.
Seasons Β· Peak

Identifying features
- Long, muscular barbel body with a fleshy, protrusible mouth and four barbels
- Golden-olive to grey back, pale belly, and large overlapping scales
- Long dorsal fin with a high front edge in adults
- The lower lip is thick and fleshy with a distinct median lobe in this species
- Streamlined head and deeply forked tail built for Iberian river currents
Habits
- An Iberian endemic of the Ebro and other Spanish rivers β several close Luciobarbus relatives share its rivers
- Feeds on the bottom on insect larvae, crustaceans and plant matter, with larger fish taking small fish
- An emerging fly-fishing target β sight-fished fish take nymphs and dry flies in clear summer water
- Migrates upstream in spring to spawn over gravel
- Fights strongly in current for its size
Distribution
Where to find them
- Ebro main river and lower tributaries in spring and autumn
- Guadiana and Tagus reaches within its wider endemic range
- Weir pools and bridge holes of Spanish lowland rivers
Where they live
How to catch them
Sight fly-fishing in clear summer water River
Rig: Fly rod 6-7 wt with a nymph, small streamer or dry fly presented on sight to feeding fish in clear runs and glides
Bait/lure: Nymphs, small streamers and dry flies
Key tip: Approach slowly and cast accurately β sight-fished comizo are wary; a clean first presentation counts more than fly changes.
Light ledgering in runs and glides River
Rig: Medium river rod with a running lead and a strong small hook, fished with bread paste, pellets or small boilies in runs and weir pools
Bait/lure: Bread paste, pellets and small boilies
Key tip: Feed lightly and fish patiently close to bank lines; bites develop slowly, strike on a positive pull.
Best baits & lures
Baseline setup
- Rod: Medium river rod or a 6-7 wt fly rod for sight-fished fish
- Line: 10-20 lb mono with a strong hooklink
- Terminal: Strong small hooks, running leads, and fly tackle with nymphs and streamers
Recommended gear for this species
Rod Β· Best value
9' 5-weight fly rod outfit
β US$180-260
Covers chironomid lakes and small rivers with one setup.
Flies Β· Budget
Chironomid assortment (30 patterns)
β US$25-40
Chironomids are 60% of a lake rainbow's diet in spring.
Picks come from our rule library β never paid placements. Prices are guides; affiliate links may earn us a commission.
Typical size
Common 4-11 lb (1.8-5 kg); large fish over 22 lb (10 kg) and 31 in (80 cm)
On the table
Fair to poor β coarse flesh with many bones; most specialist anglers release this Vulnerable endemic.
Similar species
Regulations vary by area and can change in-season β always check the official rules for your area before you fish. Regulations guide β
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