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🌊 Marine Least Concern 🌡️ Tropical

Fijian silverside

Hypoatherina ovalaua Herre, 1935
Max Length
7.8 cm
Max Weight
Lifespan
Trophic Level
3.3
Depth
0–5 m
Climate
Tropical
Resilience
High
Vulnerability
26.00/100
Typical Length
Depth Zone
reef

📖 Overview

Relatively common in both high island and atoll lagoons . They are not found in the rougher waters over reefs and are attracted to light at night in lagoons . Used as bait in the tuna fishery .

Scientific Name
Hypoatherina ovalaua
Authority
Herre, 1935
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.8 cm
Depth Range
0–5 m
Latitude
23°S – 16°N
Trophic Level
3.3
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 4 - 7; Dorsal soft rays (total): 8 - 10; Anal spines: 1; Anal soft rays: 9 - 12. Premaxilla with long ascending process and two lateral processes. Gill rakers 22-25. Midlateral scale count 38-42. : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Fijian silverside is currently being reviewed.

🦐 Diet

Diet information for Fijian silverside is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 5 m . Tropical; 16°N - 23°S Central Pacific: Sumatra to northern Cooks, north to the Philippines, Carolines and Marshall Islands, south to Fiji.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00437 × L3.15 (TL)
Max TL
7.8cm
Dorsal Spines
6
Dorsal Rays
9
Anal Spines
1
Anal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Latitude Range
16°N – 23°S
Described By
Herre, 1935

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Fijian silverside
🌍CES gavún fidžijský

Scientific Synonyms

Scientific Name Author Year Status
Allanetta ovalaua Herre 1935 Synonym
Atherina ovalaua Herre 1935 Synonym
Pranesus ovalauus Herre 1935 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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