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Diadromous 🌡️ Tropical

Hades’ snake moray

Uropterygius hades Huang, Hibino, Balisco & Liao, 2024
Max Length
34.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
2–10 m
Climate
Tropical
Resilience
Medium
Vulnerability
32.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Hades’ snake moray (Uropterygius hades) is a ray-finned fish of the family Muraenidae. It inhabits diadromous, migrating between freshwater and the sea waters. This species can reach a maximum total length of 34.9 cm. It occurs at depths between 2 and 10 metres. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Uropterygius hades
Authority
Huang, Hibino, Balisco & Liao, 2024
Habitat
Diadromous
Climate
Tropical
Max Length
34.9 cm
Depth Range
2–10 m
Trophic Level
3.5
Resilience
Medium
Vulnerability
32.00/100
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 117 - 122. This small, slender moray eel, possible maximum TL < 35.0 cm, female mature at 17.1 mm TL is distinguished by the following characters: anus at mid-length of body; eyes small and anteriorly placed; snout pointed; upper jaw slightly longer than lower jaw; teeth sharply pointed with smooth edges and recurved tips; intermaxillary teeth in 5 rows; maxillary and dentary teeth biserial, the inner rows extending to about posterior end of jaws; vomerine teeth in single row; branchial pore absent; total vertebrae 117-122. Colouration: body uniformly dark brown; head pores, oral cavity, and inner skin of posterior nostril and gill opening whitish; iris reddish-brown .Cross section: oval.

🌀 Behaviour

Behavioural data for Hades’ snake moray is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; benthopelagic; depth range 2 - 10 m . Tropical Pacific Ocean: Japan (Ryukyu Arch.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00069 × L3.12 (TL)
Max TL
34.9cm
Vertebrae
120

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.5
Predator
Climate Zone
Tropical
Described By
Huang, Hibino, Balisco & Liao, 2024

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