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🌊 Marine Least Concern 🌡️ Tropical

Abrolhos jawfish

Opistognathus alleni Vaniz, 2004
Max Length
7.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–33 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Overview information for Abrolhos jawfish is currently being compiled by our editorial team.

Scientific Name
Opistognathus alleni
Authority
Vaniz, 2004
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.4 cm
Depth Range
0–33 m
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 19 - 20; Anal spines: 2; Anal soft rays: 17 - 18; Vertebrae: 32 - 33. This species is characterized by the following: D X,19 (rarely 20); about 21-31 oblique scale rows in longitudinal series on body; no scales anterolaterally forward of verticals from 6th to 9th segmented dorsal-fin rays; a broad dark submarginal stripe on spinous dorsal fin; spine tips with pale fleshy tabs; 1-3 vomerine teeth . further diagnosed by the rigid upper jaw lacking flexible lamina posteriorly, extending 0.4-0.6 eye diameters behind posterior margin of orbit; infraorbitals are moderately robust, the second and third infraorbitals with large sensory canal openings, third infraorbital with very slight suborbital shelf; A II,17-18; vertebrae 10+22, rarely 23; lateral line terminus below segmented dorsal-fin rays 13-17; no scales forward of verticals from segmented dorsal-fin rays 6-9; vomerine teeth 1-3; the tips of dorsal-fin spines with pale fleshy tabs; dorsal fin with submarginal dark stripe and the anal fin with a narrow, dark, submarginal stripe; belly with scattered white scattered white spots .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Abrolhos jawfish is currently being reviewed.

🦐 Diet

Diet information for Abrolhos jawfish is currently being compiled.

🥚 Reproduction

Reproduction data for Abrolhos jawfish is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 33 m . Tropical Indian Ocean: Australia.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.4cm
Dorsal Spines
10
Dorsal Rays
20
Anal Spines
2
Anal Rays
18
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Vaniz, 2004

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