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🌊 Marine 🌡️ Tropical

Pura chromis

Chromis pura Allen & Randall, 2004
Max Length
7.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults inhabit sloping, rocky bottom exposed to strong currents . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .

Scientific Name
Chromis pura
Authority
Allen & Randall, 2004
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
Max Length
7.6 cm
Trophic Level
3
Resilience
High
Vulnerability
20.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 18; Dorsal soft rays (total): 12 - 13; Anal spines: 2; Anal soft rays: 11; Vertebrae: 26. This species is characterized by having D XIII, 12-13 (usually XIII, 12); A II, 11; pectoral rays 19-20; 2 spiniform caudal rays; 16-18 tubed lateral line scales; gill rakers 6-7 + 19-20 (total, 25-27); body depth 1.96-2.07 in SL; caudal peduncle blue-grey, grading to dusky yellowish; scale margins darker grey; dorsal portion of head and nape greenish grey; suborbital blue and opercular scales with similar blue shade; dorsal fin mainly blue-grey, darker on anterior half of soft portion, abruptly yellowish on posterior half; anal fin mainly black, except the last few rays which is hyaline and thin blue anterior margin; caudal fin dusky yellow; pelvic fins hyaline with prominent black triangular marking at base .: short and / or deep.

🌀 Behaviour

Behavioural data for Pura chromis is currently being reviewed.

🦐 Diet

Diet information for Pura chromis is currently being compiled.

🥚 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; benthopelagic; depth range ? - 18 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.0182 × L3 (TL)
Max TL
7.6cm
Dorsal Spines
18
Dorsal Rays
13
Anal Spines
2
Anal Rays
11
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Allen & Randall, 2004

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