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🌊 Marine Data Deficient 🌡️ Deep-water

Eustomias Patulus

Eustomias patulus Regan & Trewavas, 1930
Max Length
13.3 cm
Max Weight
-
Lifespan
-
Trophic Level
4.2
Depth
0–400 m
Climate
Deep-water
Resilience
Medium
Vulnerability
25.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Eustomias Patulus (Eustomias patulus), first described by Regan & Trewavas, 1930 is a small fish in the family Stomiidae (order Stomiiformes). Adults typically reach 13.30 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 400 metres. 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 Data Deficient.

Scientific Name
Eustomias patulus
Authority
Regan & Trewavas, 1930
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
DD
Max Length
13.3 cm
Depth Range
0–400 m
Trophic Level
4.2
Resilience
Medium
Vulnerability
25.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 24; Anal soft rays: 36; Vertebrae: 68. A single, ovoid terminal bulb 1.4% SL. Barbel length 56% SL. A single short terminal filament with several side branches along its length, none with prominent bulblets. Axis of stem, main filament, and most proximal filament branch lightly pigmented. No spot usually at the base of both. External chevron-shaped or roundish striated areas unpigmented. Paired spots along dorsum not counted .: elongated.

🌀 Behaviour

Behavioural data for Eustomias Patulus 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; depth range 0 - 400 m . Deep-water; 27°N - northwest of Cape Verde (26°N 21°W).

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
4.2±0.8

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.12 (TL)
Max TL
13.3cm
Dorsal Rays
24
Anal Rays
36
Vertebrae
68

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
4.2
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Regan & Trewavas, 1930

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