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🌊 Marine Least Concern 🌡️ Deep-water

Yellowstem dragonfish

Eustomias macrurus Regan & Trewavas, 1930
Max Length
27.6 cm
Max Weight
-
Lifespan
-
Trophic Level
4.5
Depth
-
Climate
Deep-water
Resilience
Medium
Vulnerability
40.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Yellowstem dragonfish (Eustomias macrurus), first described by Regan & Trewavas, 1930 is a medium-sized fish in the family Stomiidae (order Stomiiformes). Adults typically reach 27.60 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Deep-water waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Eustomias macrurus
Authority
Regan & Trewavas, 1930
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
27.6 cm
Latitude
34°S – 42°N
Trophic Level
4.5
Resilience
Medium
Vulnerability
40.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Stomiiformes
Stomiiformes
Family
Stomiidae
Stomiidae
Genus
Eustomias
Eustomias
Species
Yellowstem dragonfish
Eustomias macrurus

🐟 Physical Description

Dorsal soft rays (total): 29; Anal soft rays: 45. Barbel unadorned, oblong bulb, stem white with a series of rounded light yellowish patches .: elongated.

🌀 Behaviour

Behavioural data for Yellowstem dragonfish is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; bathypelagic. Deep-water; 42°N - 34°S, 98°W - west of 15°W between the equator and 6°N, and from 13°S-17°S between 5°W and 10°W.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
4.5±0.8

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.12 (TL)
Max TL
27.6cm
Dorsal Rays
29
Anal Rays
45

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2014

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
40.00/100
Moderate vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Latitude Range
42°N – 34°S
Described By
Regan & Trewavas, 1930

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Scaleless Dragonfish · Yellowstem Dragonfish
🌍CES svítivka dlouhoocasá
🇵🇹Portuguese Peixe-dragão-vampiro

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 23 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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