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💧 Freshwater Least Concern 🌡️ Tropical

Vanuatu's emperor

Akihito vanuatu Watson, Keith & Marquet, 2007
Max Length
4.3 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits swift, clear streams with rocky bottom; the species utilizes presence of heavy rains to migrate to the sea or to the river. The mature specimens were collected at an altitude of 300 m. Few specimens were found to have fed on aquatic insects and crustacean .

Scientific Name
Akihito vanuatu
Authority
Watson, Keith & Marquet, 2007
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
4.3 cm
Resilience
High
Vulnerability
11.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Akihito
Akihito
Species
Vanuatu's emperor
Akihito vanuatu

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 10. This species is characterized by the following; females with closely-set, slightly flexible tricuspid premaxillary teeth and 0-1 canine-like tooth at the posterior tip of the premaxilla; immature males with conical teeth posterior to tricuspid teeth; adult males with only fixed recurved conical to canine-like teeth; scales are much higher than long, along lateral midline between second dorsal and anal fins; few ctenoid scales midlaterally in males while only cycloid scales in females, and female scales are generally smaller than in males .

🌀 Behaviour

Behavioural data for Vanuatu's emperor is currently being reviewed.

🦐 Diet

Diet information for Vanuatu's emperor is currently being compiled.

🥚 Reproduction

Reproduction data for Vanuatu's emperor is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
4.3cm
Dorsal Spines
7
Dorsal Rays
10
Anal Spines
1
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Climate Zone
Tropical
Described By
Watson, Keith & Marquet, 2007

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