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🌊 Marine 🌡️ Tropical

Outer-reef damsel

Pomacentrus emarginatus Cuvier, 1829
Max Length
10 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
4–12 m
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Adults are found at the upper edges of steep outer reef slopes. They occur singly or in small groups. Feed on zooplankton and algae . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .

Scientific Name
Pomacentrus emarginatus
Authority
Cuvier, 1829
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
10 cm
Depth Range
4–12 m
Latitude
10°S – 23°N
Trophic Level
2.7
Resilience
High
Vulnerability
21.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 13; Dorsal soft rays (total): 14; Anal spines: 2; Anal soft rays: 13 - 14. : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Outer-reef damsel is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawn Location
Demersal

Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 4 - 12 m . Tropical; 23°N - 10°S, 102°E - 170°W Central Pacific: Waigiu (off west New Guinea) and Palau.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
2.7±0.29
Food Items

zooplankton and algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L3 (TL)
Max TL
10cm
Dorsal Spines
13
Dorsal Rays
14
Anal Spines
2
Anal Rays
14

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
23°N – 10°S
Described By
Cuvier, 1829

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