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💧 Freshwater Least Concern 🌡️ Tropical

Pangasius Polyuranodon

Pangasius polyuranodon Bleeker, 1852
Max Length
80 cm
Max Weight
-
Lifespan
32 yrs
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
Very low
Vulnerability
68.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Facultative air-breathing ; Found in lakes and rivers . Adults occur in estuaries and lower reaches but has also been observed in the upper reaches during the rainy season. Species is omnivorous with a tendency to opportunism .

Scientific Name
Pangasius polyuranodon
Authority
Bleeker, 1852
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
80 cm
Lifespan
32 years
Trophic Level
2.8
Resilience
Very low
Vulnerability
68.00/100
Migration
Potamodromous

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Siluriformes
Siluriformes
Family
Pangasiidae
Pangasiidae
Genus
Pangasius
Pangasius
Species
Pangasius Polyuranodon
Pangasius polyuranodon

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 6 - 8; Anal spines: 0; Anal soft rays: 33 - 43. Body somewhat elongated with short predorsal length (25.2-29.2% SL); a long caudal peduncle (17.2-21.8% SL); short head length (16.1-20.1% SL); and, short mandibular barbels (length 11.7-42.2% HL). Swim bladder 3-chambered, extending to above anal-fin base . Dorsum dark blue to blue-black; 3-4 lowermost principal caudal rays white; vomerine teeth appearing as 2 joined patches in juveniles ; vomerine teeth united into quadrangular patch, 1.5 times broader than long, not confluent with palatine teeth patch; anal fin base elongate, its length 3.1-3.6 times in SL; dorsal and pectoral fin spines slender; snout blunt .: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Pangasius Polyuranodon is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; brackish; benthopelagic; potamodromous . Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish
Migration
Potamodromous
Trophic Level
2.8±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.09 (TL)
Max TL
80cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
38

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bleeker, 1852

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