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🌊 Marine 🌡️ Tropical

White-spine butterfyfsh

Roa haraguchiae Uejo, Senou & Motomura, 2020
Max Length
109 cm
Max Weight
Lifespan
Trophic Level
4.4
Depth
37–162 m
Climate
Tropical
Resilience
Very low
Vulnerability
68.00/100
Typical Length
Depth Zone
reef

📖 Overview

Taken in by bottom trawls, thus indicating a sandy bottom habitat. Also, photos taken of this species were from rocky bottom areas in fairly deep water and were observed occurring in pairs .

Scientific Name
Roa haraguchiae
Authority
Uejo, Senou & Motomura, 2020
Habitat
Marine
Climate
Tropical
Max Length
109 cm
Depth Range
37–162 m
Trophic Level
4.4
Resilience
Very low
Vulnerability
68.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 21 - 22; Anal spines: 3; Anal soft rays: 16 - 17. This species is distinguished by the following characters: non-pored lateral-line scales 5–8; scale rows above lateral line 11-12 and below lateral line 22-28; scale rows under longer axis of black blotch on dorsal-fn soft-rayed portion 10-12; head depth 46.2-54.9% (mean 51.6%) of SL; postorbital short, length 12.1-14.1% (13.1%) of SL; long snout, its length 33.2-38.7% (35.6%) of HL; short pectoral-fin, its length 27.9-32.4% (29.5%) of SL; anterior margin of second body band does not reach anteroventrally to pelvic-fin spine base; pelvic-fin spine and first pelvic-fin soft ray is white and remaining soft rays and membranes entirely black; membranes associated with first and second dorsal-fin spines are blackish distally; second and third body bands without blackish edges .Cross section: compressed.

🌀 Behaviour

Behavioural data for White-spine butterfyfsh is currently being reviewed.

🦐 Diet

Diet information for White-spine butterfyfsh is currently being compiled.

🥚 Reproduction

Reproduction data for White-spine butterfyfsh is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 37 - 162 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
4.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.02239 × L3.01 (TL)
Max TL
109cm
Dorsal Spines
11
Dorsal Rays
22
Anal Spines
3
Anal Rays
17

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Trophic Level
4.4
Apex / Top predator
Climate Zone
Tropical
Described By
Uejo, Senou & Motomura, 2020

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