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💧 Freshwater Critically Endangered 🍽️ Edible 🌡️ Tropical

Mekong giant catfish

Pangasianodon gigas Chevey, 1931
Max Length
300 cm
Max Weight
350.0 kg
Lifespan
10 yrs
Trophic Level
2.3
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
79.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Facultative air-breathing ; A migratory species which occurs in medium to large-sized rivers . Adults feed on detritus and algae on the bottom ; feeds only on vegetation in the river but takes other food in captivity; little is known on its general pattern of life and migratory journeys for spawning . Shows one of the fastest growth rates of any fish in the world, reaching 150 to 200 kg in 6 years . Cited in the Guinness Book of Records as largest freshwater fish . Marketed fresh . Maximum length of 300 cm needs confirmation. Threatened due to over harvesting and habitat loss .

Scientific Name
Pangasianodon gigas
Authority
Chevey, 1931
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
CR
Max Length
300 cm
Max Weight
350 kg
Lifespan
10 years
Trophic Level
2.3
Resilience
Low
Vulnerability
79.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7 - 8; Anal soft rays: 35; Vertebrae: 48. Body without stripes; posterior nostril located near anterior nostril; 7 branched dorsal-fin rays; gill rakers rudimentary or absent; fins grey, never black . The center of the eye above the horizontal line through the mouth angle in juveniles; eye totally below the level of mouth angle in subadults and adults. The maxillary and mandibulary pairs of barbels well developed in juveniles; mandibulary barbels become rudimentary in subadults and adults . Gigantic size; oral teeth and gill rakers present in small juveniles, absent at about 30-50 cm SL; dorsal, pelvic and pectoral fins without filamentous extensions . Distinguished from other large catfish in the Mekong by its lack of teeth and the almost complete absence of barbels : elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Mekong giant catfish is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Tropical endemic to the Mekong basin where it has become rare due to overexploitation.

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
2.3±0.17
Food Items

detritus and algae on the bottom (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00776 × L3.14 (TL)
Max TL
300cm
Max Weight
350,000g
Dorsal Spines
2
Dorsal Rays
8
Anal Rays
35
Vertebrae
48

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
79.00/100
Very High vulnerability
Trophic Level
2.3
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Chevey, 1931

🍽️ Edibility & Flavour

⚡ Nutrition

Detailed nutritional data for Mekong giant catfish is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Mekong giant catfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🏆 World Records

Record Type Value Angler Location Date Line Class
Weight 293 kg Reported catch Chiang Khong, Thailand 01 May 2005 ALL

Source: IGFA All-Tackle World Records database

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