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🌊 Marine Least Concern 🌡️ Deep-water

Oblong deepsea batfish

Halieutopsis oblonga Smith & Radcliffe, 1912
Max Length
6.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
690–1886 m
Climate
Deep-water
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Oblong deepsea batfish (Halieutopsis oblonga) is a ray-finned fish of the family Ogcocephalidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 6.3 cm. It occurs at depths between 690 and 1886 metres. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Halieutopsis oblonga
Authority
Smith & Radcliffe, 1912
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
6.3 cm
Depth Range
690–1886 m
Trophic Level
3.2
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 4 - 6. This species is distinguished by the following characters: rostrum consists of five enlarged tubercles, including trifid tubercle at the tip flanked by two pairs of bifurcate tubercles on anterior edge of rostrum; tubercles on dorsal surface is simple, with 5-6 facets; simple tubercles on ventral surface; dorsal lobe of esca is very low, with a pair of cirri in front and pair of flaps in back; tubercles on tail are all simple .Cross section: flattened.

🌀 Behaviour

Behavioural data for Oblong deepsea batfish 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; bathydemersal; depth range 690 - 1886 m . Deep-water

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.02455 × L2.93 (TL)
Max TL
6.3cm
Dorsal Rays
5

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Deep-water
Described By
Smith & Radcliffe, 1912

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