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🌊 Marine Least Concern 🌡️ Tropical

Trachinocephalus Gauguini

Trachinocephalus gauguini R., 2016
Max Length
12.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
26–75 m
Climate
Tropical
Resilience
High
Vulnerability
13.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Trachinocephalus Gauguini (Trachinocephalus gauguini) is a ray-finned fish. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 12.5 cm. It occurs at depths between 26 and 75 metres. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Trachinocephalus gauguini
Authority
R., 2016
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
12.5 cm
Depth Range
26–75 m
Trophic Level
3.9
Resilience
High
Vulnerability
13.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Trachinocephalus
Trachinocephalus
Species
Trachinocephalus Gauguini
Trachinocephalus gauguini

🐟 Physical Description

This species is distinguished from its congeners by the following characters: length of snout (SLn) 6,7-10.0% head length (HL), mean 7.8 (vs mean 12.3% in T. trachinus; 12.1% in T. myops); body depth SLn 12.6-18.9%, mean 14.7% (vs. mean 21.2% in trachinus; 21.6% in myops); eye diameter SLn 31.6-51.7%, mean 40.1% (vs. 74.8% in trachinus; 79.1% in myops); interorbital width 4·0-6·7%, mean 5·6% HL (vs. mean 8·7% in trachinus; 8·9% in myops); anal-fin rays 14-16, mode 14 (vs. mode 16 in trachinus; 15 in myops); pectoral-fin rays 11-12, mode 11 (vs. mode 12 in the two species); lateral-line scales 56-59, mode 56 (vs. mode 57 in myops); further differs from trachinus and myops by deep mitochondrial distances (15.7-19.0 and 16.9-17.6%, respectively) .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Trachinocephalus Gauguini is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 26 - 75 m . Tropical Central Pacific: Marquesas Islands, where it is probably endemic.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.9±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.16 (TL)
Max TL
12.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
R., 2016

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