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🌊 Marine Least Concern 🌡️ Deep-water

Three-spined hatchetfish

Polyipnus tridentifer McCulloch, 1914
Max Length
7.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
640–825 m
Climate
Deep-water
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Three-spined hatchetfish (Polyipnus tridentifer) is a ray-finned fish of the family Sternoptychidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 7.2 cm. It occurs at depths between 640 and 825 metres. With a trophic level of 3.3, 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
Polyipnus tridentifer
Authority
McCulloch, 1914
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
7.2 cm
Depth Range
640–825 m
Trophic Level
3.3
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Stomiiformes
Stomiiformes
Family
Sternoptychidae
Sternoptychidae
Genus
Polyipnus
Polyipnus
Species
Three-spined hatchetfish
Polyipnus tridentifer

🐟 Physical Description

Physical description for Three-spined hatchetfish is currently being compiled.

🌀 Behaviour

Behavioural data for Three-spined hatchetfish 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 640 - 825 m . Deep-water South China Sea (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.3±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.02291 × L2.94 (TL)
Max TL
7.2cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Deep-water
Described By
McCulloch, 1914

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