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💧 Freshwater Vulnerable 🎣 Game Fish 🌡️ Temperate 🎣 Game Fish

Tagus Chub

Squalius pyrenaicus Günther, 1868
Tagus Chub (Squalius pyrenaicus)
Tagus Chub (Squalius pyrenaicus)
Max Length
26 cm
Max Weight
Lifespan
7 yrs
Trophic Level
3.3
Depth
Climate
Temperate
Resilience
Medium
Vulnerability
51.00/100
Typical Length
Depth Zone

📖 Overview

Adults occur in rivers and marshlands . An ubiquitous species which inhabits small to medium-sized streams with Mediterranean water regime. May be confined to very small pools during summer. Adults feed mainly on small arthropods. They spawn on stone to gravel bottom in shallow riffle habitats with fast-flowing water. Involved in the Iberocypris alburnoides hybrid complex . Threatened due to pollution, habitat destruction and the introduction of other species .

Scientific Name
Squalius pyrenaicus
Authority
Günther, 1868
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
VU
Max Length
26 cm
Lifespan
7 years
Trophic Level
3.3
Resilience
Medium
Vulnerability
51.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 6 - 9; Anal soft rays: 7 - 9; Vertebrae: 37 - 40. Differs from its congeners in Iberian Peninsula by the following characters: 37-42 + 2-3 scales on lateral line; 3-5 scale rows between lateral line and pelvic origin; infraorbital bones broad, width of infraorbitals 2 and 5 about 4-5 times width of sensory canal on same bones; a black crescentic mark on scale pocket of each flank scale (often indistinct in life); head length about equal to body depth; caudal peduncle depth usually 2.0-2.6 times in its length; and mouth terminal, snout pointed . Other diagnostic features include communication preopercular-mandibular and infraorbital canals present; and supraethmoid wide and short .: fusiform / normal.

🌀 Behaviour

Behavioural data for Tagus Chub is currently being reviewed.

🦐 Diet

Diet information for Tagus Chub is currently being compiled.

🥚 Reproduction

Size at Maturity
7.5cm TL

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Temperate; 41°N - 36°N, 9°W - 0°

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
3.3±0.49
Food Items

small arthropods

📐 Morphometrics

Length–Weight Relationship: W = 0.00933 × L3.14 (TL)
Max TL
26cm
Dorsal Rays
8
Anal Rays
8
Vertebrae
39

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
51.00/100
Moderate-High vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Günther, 1868

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Iberian Chub · Southern Iberian chub · Tagus Chub · cacho
🌍CES jelec pyrenejský
🌍EUS Hegoaldeko katxoa
🇫🇮Finnish iberianturpa
🇵🇹Portuguese Escalo-do-Tejo · Escalo-do-sul
🇷🇺Russian Пиренейский голавль
🇪🇸Spanish Cacho

Scientific Synonyms

Scientific Name Author Year Status
Leuciscus pyrenaicus Günther 1868 Homotypic

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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