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🌊 Marine Least Concern 🌡️ Tropical

Hairfinned leatherjacket

Paramonacanthus japonicus Tilesius, 1809
Max Length
12 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
34–46 m
Climate
Tropical
Resilience
Medium
Vulnerability
22.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Adults inhabit weedy and sandy areas of coastal reefs . They are found on open muddy substrates from shallow estuaries to deep offshore. Males elongate with age . Monogamous .

Scientific Name
Paramonacanthus japonicus
Authority
Tilesius, 1809
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
12 cm
Depth Range
34–46 m
Trophic Level
2.8
Resilience
Medium
Vulnerability
22.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 24 - 30; Anal spines: 0; Anal soft rays: 24 - 30; Vertebrae: 19. body width 2.0-2.6 in head length; body depth 2.0-3.1 in SL, head length 2.7-3.2 in SL; snout length 3.7-4.1 in SL; eye diameter 2.7-3.7 in head length; second dorsalmost caudal ray elongate and filamentous in male .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Hairfinned leatherjacket is currently being reviewed.

🦐 Diet

Diet information for Hairfinned leatherjacket is currently being compiled.

🥚 Reproduction

Reproduction data for Hairfinned leatherjacket is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory ; depth range 34 - 46 m . Tropical; 35°N - 31°N, 130°E - 141°E

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
2.8±0.25

📐 Morphometrics

Length–Weight Relationship: W = 0.0182 × L2.86 (TL)
Max TL
12cm
Dorsal Spines
2
Dorsal Rays
27
Anal Rays
27
Vertebrae
19

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Tilesius, 1809

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