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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Asian redtail catfish

Hemibagrus nemurus Valenciennes, 1840
Max Length
65 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
63.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in most habitat types, but most frequent in large muddy rivers, with slow current and soft bottom . Enters flooded forest . Feeds on exogenous insects, aquatic insect larvae, shrimps, other crustaceans and fishes. Moves into flooded forests to spawn and the young are usually first seen in August. In Tonlé Sap (Cambodia), maximum numbers are found as it returns to rivers in November and December. A highly priced aquarium fish. Usually marketed fresh . High in nutritive values especially omega-3 fatty acids (EPA, DHA) .

Scientific Name
Hemibagrus nemurus
Authority
Valenciennes, 1840
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
65 cm
Latitude
6°S – 19°N
Trophic Level
3.6
Resilience
Low
Vulnerability
63.00/100
Migration
Potamodromous
Water Temp
22–25 °C

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Siluriformes
Siluriformes
Family
Bagridae
Bagridae
Genus
Hemibagrus
Hemibagrus
Species
Asian redtail catfish
Hemibagrus nemurus

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 10 - 13. Body color brown often with greenish sheen. Fins gray with violet tint. Pectoral fin spines serrated along the inner edge. Base of adipose fin shorter than that of dorsal fin and about equal to that of anal fin. Barbels four pairs; nasal barbels extending to or beyond eyes, maxillary ones in anal fin, mandibulary ones beyond base of pectoral fins, mental ones 2/3 - 3/4 the distance between their base and insertion of pectoral fins . Head flattened rather than conical; rugose skull roof; depressed dorsal fin not reaching adipose fin; pectoral fin smooth in front; 9 branched anal rays .: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Asian redtail catfish 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; pH range: 7.0 - 8.2; dH range: 10 - 25; potamodromous ; depth range 5 - ? m . Tropical; 22°C - 25°C ; 19°N - 6°S

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish
Migration
Potamodromous
Trophic Level
3.6±0.59
Food Items

exogenous insects, aquatic insect larvae, shrimps, other crustaceans and fishes

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L2.96 (TL)
Max TL
65cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
12

🌡️ Water Parameters & Tolerance

Temperature Range
22–25°C
pH Range
7–8.2

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
63.00/100
High vulnerability
Trophic Level
3.6
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
19°N – 6°S
Described By
Valenciennes, 1840

🍽️ Edibility & Flavour

"Asian redtail catfish is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

⚡ Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 16.8 g
Omega-3 (total) 240 mg

🔬 Mercury Safety

Mercury data for Asian redtail 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
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Yellow Catfish
🌍KHM ត្រីឆ្លាំង

Scientific Synonyms

Scientific Name Author Year Status
Bagrus nemurus Valenciennes 1840 Synonym
Bagrus sieboldii Bleeker 1846 Synonym
Macrones nemurus Valenciennes 1840 Synonym
Mystus nemurus Valenciennes 1840 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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