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🌊 Marine Vulnerable ⚡ Other 🌡️ Tropical

Numbray

Narke dipterygia Bloch & Schneider, 1801
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
10.00/100
Typical Length
20 cm
Depth Zone
demersal

📖 Overview

Found in continental waters, both inshore and offshore . Mainly feeds on crustaceans and polychaetes . Biology little known but reported to produce 4-6 young each gestation . Adult males and females known at 15 cm TL; common size reported to reach 35 cm TL . The electric organs present on disc are used to stun the prey.

Scientific Name
Narke dipterygia
Authority
Bloch & Schneider, 1801
Habitat
Marine
Climate
Tropical
IUCN Status
VU
Max Length
18 cm
Trophic Level
3.2
Resilience
Low
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Numbray is currently being compiled.

🌀 Behaviour

Behavioural data for Numbray is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range 100 - ? m . Tropical; 42°N - 0°N, 55°E - 143°E West Pacific; Oman (Arabian Sea) to north-east Asia (China and Japan).

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.3
Food Items

crustaceans and polychaetes (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3.04 (TL)
Max TL
18cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Bloch & Schneider, 1801

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