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🌊 Marine Data Deficient 🌡️ Tropical

Fiji anchovy

Encrasicholina auster Hata & Motomura, 2017
Max Length
5.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Overview information for Fiji anchovy is currently being compiled by our editorial team.

Scientific Name
Encrasicholina auster
Authority
Hata & Motomura, 2017
Habitat
Marine
Climate
Tropical
IUCN Status
DD
Max Length
5.1 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 3; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 15 - 17; Vertebrae: 42 - 43. This species is distinguished by the following set of characters: dorsal and anal fins with three unbranched rays; pseudobranchial filaments 19-21 (modally 20); branched pectoral-fin rays 12-13 (13); gill rakers on first gill arch, in upper series 20-22 (22), in lower series 25-27 (27), in total 45-49 (49); gill rakers on second gill arch, upper series15-17 (17), lower series 24-26 (25), total 40-43 (40, 42); gill rakers on third gill arch, upper series 12-16 (14), lower series 13-15 (14), total 26-31 (26, 28); gill rakers on fourth gill arch, upper series 11-13 (12), lower series 11-12 (11), total 22-25 (23); prepelvic scutes 5-6 (5); transverse scales 11; head long, its length 29.1%-29.2% (mean 29.2%) of SL; upper jaw long, its length 20.8%-22.5% (mean 21.2%) of SL, with posterior tip reaching to posterior edge of preopercle; lower jaw long, the length 19.0%-20.7% (mean 19.7%) of SL; the first unbranched dorsal- and anal-fin rays are minute, the length 0.9%-1.5% (mean 1.1%) and 0.9%-1.6% (mean 1.2%) of SL, respectively; distance from dorsal-fin origin to upper end of pectoral-fin insertion is rather long, 97.5%-106.3% of HL (mean 103.9%) .Cross section: compressed.

🌀 Behaviour

Behavioural data for Fiji anchovy is currently being reviewed.

🦐 Diet

Diet information for Fiji anchovy is currently being compiled.

🥚 Reproduction

Reproduction data for Fiji anchovy is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated. Tropical Central Pacific: Fiji.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.2±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.14 (TL)
Max TL
5.1cm
Dorsal Spines
3
Dorsal Rays
13
Anal Spines
3
Anal Rays
16
Vertebrae
43

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Hata & Motomura, 2017

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