New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Data Deficient 🌡️ Tropical

Opistognathus Challenger

Opistognathus challenger Vaniz, 2023
Max Length
7.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Overview information for Opistognathus Challenger is currently being compiled by our editorial team.

Scientific Name
Opistognathus challenger
Authority
Vaniz, 2023
Habitat
Marine
Climate
Tropical
IUCN Status
DD
Max Length
7.6 cm
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 11; Anal spines: 2; Anal soft rays: 11; Vertebrae: 30. This species is distinguished by the following characters: with a rigid upper jaw lacking flexible lamina posteriorly, extending 0.6 eye diameters behind posterior margin of orbit; D XI,11; A II,11; vertebrae 10+16; area above lateral line anteriorly with 3-4 rows of scales; body with approximately 44 oblique scale rows in horizontal series; total gill rakers on first arch 30. Colouration: spinous dorsal fin with a dark spot between spines 1-2 and extending to anterior margin of spine 4, the chin slightly dusky and no dark postorbital spot .Cross section: oval.

🌀 Behaviour

Behavioural data for Opistognathus Challenger is currently being reviewed.

🦐 Diet

Diet information for Opistognathus Challenger is currently being compiled.

🥚 Reproduction

Reproduction data for Opistognathus Challenger is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range ? - 149 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.6cm
Dorsal Spines
11
Dorsal Rays
11
Anal Spines
2
Anal Rays
11
Vertebrae
30

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2024

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Tropical
Described By
Vaniz, 2023

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Opistognathus Challenger ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.