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Diadromous Near Threatened 🌡️ Tropical

Indonesian shortfin eel

Anguilla bicolor McClelland, 1844
Max Length
123 cm
Max Weight
-
Lifespan
20 yrs
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
63.00/100
Typical Length
65 cm
Depth Zone
demersal

📖 Overview

Adults inhabit freshwater streams and pools, preferring marshy habitats , in rivers and creeks, commonly over rock bottoms and in deeper pools and move as young to estuaries and seas . Seldom found in large rivers . Restricted to lowland (coastal) reaches of river systems . Adults descend to the sea to spawn. They feed on small fishes, crustaceans and mollusks. Reported to breed east of Madagascar; the south equatorial current probably carries the eel larvae and elvers towards the east coast of Africa where local coastal currents guide the elvers to suitable rivers which they invade and they stay there until sexually mature, when they return to their breeding grounds . Caught with various types of nets. Sometimes used in the aquarium trade .

Scientific Name
Anguilla bicolor
Authority
McClelland, 1844
Habitat
Diadromous
Climate
Tropical
IUCN Status
NT
Max Length
123 cm
Lifespan
20 years
Latitude
27°S – 22°N
Trophic Level
3.6
Resilience
Low
Vulnerability
63.00/100
Migration
Catadromous
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 240 - 245; Anal spines: 0; Anal soft rays: 200 - 220; Vertebrae: 105 - 115. : eel-like; Cross section: circular.

🌀 Behaviour

Behavioural data for Indonesian shortfin eel is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Semelparous.

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; catadromous . Tropical; 22°N - 27°S east and southeast African coast and Madagascar (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Catadromous
Trophic Level
3.6±0.5
Food Items

small fishes, crustaceans and mollusks

📐 Morphometrics

Length–Weight Relationship: W = 0.00076 × L3.17 (TL)
Max TL
123cm
Dorsal Rays
243
Anal Rays
210
Vertebrae
110

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
63.00/100
High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Latitude Range
22°N – 27°S
Described By
McClelland, 1844

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Anguilla amblodon Günther 1867 Synonym
Anguilla bicolor bicolor - - Synonym
Anguilla bicolor pacifica Schmidt 1928 Synonym
Anguilla bicolour McClelland 1844 Synonym
Anguilla bicolour bicolour McClelland 1844 Synonym
Anguilla bleekeri Kaup 1856 Synonym
Anguilla cantori Kaup 1856 Synonym
Anguilla dussumieri Kaup 1856 Synonym
Anguilla foochowensis Chu & Yin 1984 Synonym
Anguilla malabarica Kaup 1856 Synonym
Anguilla moa Bleeker 1849 Synonym
Anguilla mowa Bleeker 1852 Synonym
Anguilla pacifica Schmidt 1928 Synonym
Anguilla sidat Bleeker 1852 Synonym
Anguilla spengeli Weber 1912 Synonym
Anguilla virescens Peters 1852 Synonym
Muraena halmaherensis Bleeker 1863 Synonym
Muraena macrocephala Rapp 1849 Synonym
Muraena moa Bleeker 1849 Synonym
Muraena virescens Peters 1852 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 8 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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