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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Metallic sheatfish

Phalacronotus apogon Bleeker, 1851
Max Length
130 cm
Max Weight
-
Lifespan
-
Trophic Level
4.5
Depth
-
Climate
Tropical
Resilience
Very low
Vulnerability
80.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in large rivers with turbid waters , streams, canals and lakes . Feeds on pelagic fishes in midwater to upper depths . Spawns just prior to the rise in water levels and moves into the flooded riparian forests and probably out into the floodplains during high water levels. Young of the year are first seen in July and start to move back to the rivers in October, where they remain common until January .

Scientific Name
Phalacronotus apogon
Authority
Bleeker, 1851
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
130 cm
Trophic Level
4.5
Resilience
Very low
Vulnerability
80.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 75 - 91. No dorsal fin; greatly reduced barbels (equal to or smaller than eye diameter); a slender body ; body depth 5.7-7.0 times in SL; mandibular barbels smaller than eye diameter or absent . Vomerine teeth in angular band .: elongated.

🌀 Behaviour

Behavioural data for Metallic sheatfish is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
4.5±0.8
Food Items

pelagic fishes in midwater to upper depths (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00575 × L2.93 (TL)
Max TL
130cm
Anal Rays
83

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
80.00/100
Very High vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bleeker, 1851

🍽️ Edibility & Flavour

"Metallic sheatfish 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 16.1 g
Omega-3 (total) 221 mg

🔬 Mercury Safety

Mercury data for Metallic sheatfish 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 Metallic sheatfish
🌍CES sumec bornejský
🇯🇵Japanese コモンシート
🌍THA ปลาน้ำเงิน

Scientific Synonyms

Scientific Name Author Year Status
Cryptopterus apogon Bleeker 1851 Synonym
Cryptopterus micropogon Bleeker 1855 Synonym
Kryptopterus apogon Bleeker 1851 Synonym
Micronema apogon Bleeker 1851 Synonym
Phalacronotus leptonema Bleeker 1852 Synonym
Phalacronotus micropogon Bleeker 1855 Synonym
Silurus apogon Bleeker 1851 Synonym
Silurus leptonema Bleeker 1852 Synonym
Silurus micropogon Bleeker 1855 Synonym

🗺️ 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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