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🌊 Marine Vulnerable 🌡️ Tropical

Triton Epaulette shark

Hemiscyllium henryi Allen & Erdmann, 2008
Max Length
78.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
3–30 m
Climate
Tropical
Resilience
-
Vulnerability
39.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Observed and collected both in the bay and at nearby Selat Iris, a narrow channel between the mainland and Aiduma Island; where there is almost no shallow, fringing reef habitat due to the unique geomorphology. Thus, the typical habitat for this species extends into deeper water (at least 30 m), although it has also been sighted in depths less than 4 m. It is often seen resting on the bottom, occasionally observed slowly swimming or 'walking' over the bottom with the pectoral and pelvic fins. Generally sedentary during the day, sheltering under rocky outcrops or tabular corals .

Scientific Name
Hemiscyllium henryi
Authority
Allen & Erdmann, 2008
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
VU
Max Length
78.3 cm
Depth Range
3–30 m
Trophic Level
3.5
Vulnerability
39.00/100
Salinity
30–40 ppt

🐟 Physical Description

This species is distinguished by its unique colour pattern, distinctive is the combination of small scattered spots on the head, body and fins including 13-18 spots on the interorbital/dorsal snout region and 6-18 spots on dorsal surface of pectoral fins; a unique 'double-ocellus' marking on middle of side, just behind the head .: elongated.

🌀 Behaviour

Behavioural data for Triton Epaulette shark 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; reef-associated; depth range 3 - 30 m . Tropical Known only from western New Guinea (Papua Barat Province), Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00407 × L3.09 (TL)
Max TL
78.3cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
39.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Allen & Erdmann, 2008

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