New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Least Concern 🍽️ Edible 🎣 Game Fish ⚡ Potential pest 🌡️ Subtropical

Snakehead

Channa argus Cantor, 1842
Northern Snakehead (Channa argus)
Northern Snakehead (Channa argus)
Northern Snakehead (Channa argus)
Max Length
100 cm
Max Weight
9.5 kg
Lifespan
-
Trophic Level
4.4
Depth
-
Climate
Subtropical
Resilience
Low
Vulnerability
62.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Obligate air-breathing ; Individuals can stay out of the water for 3 to 4 days at temperatures ranging from 10 to 15°C . They are typical ambush predators that lie waiting for prey on the bottom. They hunt mainly in the morning and in the evening, feeding primarily on fish . They mature at the age of 2 years and length of 30 cm. Spawning takes place in June and July . Eggs are pelagic. Utilized for human consumption.

Scientific Name
Channa argus
Authority
Cantor, 1842
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
100 cm
Max Weight
9.5 kg
Trophic Level
4.4
Resilience
Low
Vulnerability
62.00/100
Migration
Non-migratory
Water Temp
4–22 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 49 - 54; Anal spines: 0; Anal soft rays: 32 - 38. : elongated.

🌀 Behaviour

The northern snakehead is a freshwater fish and cannot tolerate salinity in excess of 10 parts per million. It is a facultative air breather, using a suprabranchial organ and a bifurcated ventral aorta that permit both aquatic and aeria respiration. This unusual respiratory system allows it to live outside of water for several days. As an amphibious fish, it can wriggle its way between bodies of water or survive being transported by humans. Only young members of this species (not adults) may be able to move overland for short distances using wriggling motions. The preferred habitats of this species are stagnant water with mud substrate and aquatic vegetation, or slow, murky, swampy streams; it is primarily piscivorous, but is known to eat crustaceans, other invertebrates, and amphibians.

🦐 Diet

Diet information for Snakehead is currently being compiled.

🥚 Reproduction

Size at Maturity
30cm TL

🌍 Habitat & Distribution

Freshwater; benthopelagic; non-migratory . Subtropical; 4°C - 22°C ; 54°N - 25°N, 111°E - 141°E

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Non-migratory
Trophic Level
4.4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.01 (TL)
Max TL
100cm
Max Weight
9,500g
Dorsal Rays
52
Anal Rays
35

🌡️ Water Parameters & Tolerance

Temperature Range
4–22°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
62.00/100
High vulnerability
Trophic Level
4.4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Cantor, 1842

🍽️ Edibility & Flavour

"Snakehead 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

Detailed nutritional data for Snakehead is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Snakehead 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

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Northern Snakehead · Ocellated Snakehead · Snakehead
🌍CES hadohlavec skvrnitý
🇩🇪German Argus-Schlangenkopffisch
🌍EST Tähniline madupea
🇫🇷French poisson à tête de serpent · Poisson tête de serpent
🇮🇹Italian Pesce testa di serpente
🇯🇵Japanese Kamuruchi · カムルチー
🇰🇷Korean 가물치
🇳🇱Dutch noordelijke slangekopvis
🇵🇱Polish Wężogłów
🇪🇸Spanish Cabeza de serpiente
🇸🇪Swedish nordlig ormhuvudfisk · nordlig ormhuvudsfisk · Pekingormhuvudfisk
🌍THA ปลาช่อนจีนลายจุด · ปลาช่อนอากัส · ปลาช่อนเหนือ
🇨🇳Chinese 乌鱼 · 乌鳢 · 才鱼 · 火头 · 烏鱧 · 蛇皮鱼 · 财鱼 · 食人鱼 · 黑乌鳢 · 黑鱼

Scientific Synonyms

Scientific Name Author Year Status
? argus Cantor 1842 Synonym
Channa argus argus Cantor 1842 Synonym
Channa argus kimurai Shih 1936 Synonym
Channa argus warpachowskii Berg 1909 Synonym
Ophicephalus argus Cantor 1842 Synonym
Ophicephalus argus warpachowskii Berg 1909 Synonym
Ophicephalus pekinensis Basilewsky 1855 Synonym
Ophiocephalus argus Cantor 1842 Synonym
Ophiocephalus argus warpachowskii Berg 1909 Synonym
Ophiocephalus pekinensis Basilewsky 1855 Synonym
Ophiocephalus warpachowskii Berg 1909 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 133 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Snakehead ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.