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🌊 Marine Least Concern 🌡️ Temperate

Obscure triplefin

Gilloblennius abditus Hardy, 1986
Max Length
6.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
0–10 m
Climate
Temperate
Resilience
High
Vulnerability
13.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Recorded from offshore islands and coastal rock stacks. Female members of the Tripterygiidae have eggs that are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites . Larvae are planktonic which occur primarily in shallow, nearshore waters .

Scientific Name
Gilloblennius abditus
Authority
Hardy, 1986
Habitat
Marine
Climate
Temperate
IUCN Status
LC
Max Length
6.4 cm
Depth Range
0–10 m
Trophic Level
3.2
Resilience
High
Vulnerability
13.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Gilloblennius
Gilloblennius
Species
Obscure triplefin
Gilloblennius abditus

🐟 Physical Description

Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 20 - 21. Distinctive 'tear-drop' marking on lower rear edge of eye. Larger blocks of brown above lateral line. Fin rays pale brown and membrane of fins transparent with irregular light and dark brown lines. Males: head and body olive green; fins mottled grey to reddish brown or olive green. Females: light brown covered with darker brown flecks. Distinguished from other triplefins by the absence of scales along the dorsal and anal fin bases.

🌀 Behaviour

Behavioural data for Obscure triplefin is currently being reviewed.

🦐 Diet

Diet information for Obscure triplefin is currently being compiled.

🥚 Reproduction

Reproduction data for Obscure triplefin is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 10 m . Temperate Southwest Pacific: known only from New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00617 × L3.03 (TL)
Max TL
6.4cm
Dorsal Spines
16
Dorsal Rays
12
Anal Rays
21

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Temperate
Described By
Hardy, 1986

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