Doublebar chromis
📖 Overview
Adults inhabit outer reef slopes and deep lagoons . They form small to moderate aggregations on reef crests with moderate currents . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 13; Dorsal soft rays (total): 10 - 11; Anal spines: 2; Anal soft rays: 10 - 11. This species is distinguished by the following set of characters: D XIII,10-11 (mode 11); A II,10-11 (11); pectoral-fin rays 18-20 (19); upper and lower procurrent caudal-fin rays 3; pored lateral-line scales 17-18 (18); gill rakers 6-8 (7) + 19-22 (21) = 26-30 (28); the longest dorsal fin soft ray length 24.6-36.4% (mean 29.4%) of SL; first anal-fin spine length 6.5-8.4% (7.1%) of SL; caudal-fin length 43.9-59.8% (48.6%) of SL; posterior tips of caudal-fin lobes filamentous; presence of broad black bands along preopercular and opercular margins, sum width of two bands 15.3-27.9% (23.6%) of head length; in adults, the distal half of soft-rayed portion of dorsal fin is transparent; no triangular black blotches at the upper or lower caudal-fin base; caudal peduncle and fin are tinged yellow; soft-rayed portions of dorsal and anal fins are yellowish, while spinous portion of dorsal and pelvic fins dark blue in juveniles .Cross section: compressed.
🌀 Behaviour
Behavioural data for Doublebar chromis is currently being reviewed.
🦐 Diet
🥚 Reproduction
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 - 40 m . Tropical South Africa to Kenya, Maldives to the Andaman Sea and Australia.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Heliastes opercularis | Günther | 1867 | Synonym |
| Pomacentrus opercularis | Gunther | - | Synonym |
🦠 Common Diseases
The following diseases are known to affect Doublebar chromis.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Doublebar chromis ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.