Overview

Comprehensive Description

Biology

Adults occur in clear lagoon and seaward reefs, usually in loose aggregations near caves and ledges. Abundant over branching corals and leeward coasts (Ref. 9710). Benthopelagic (Ref. 58302). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Distribution

Indo-Pacific: East Africa to the Hawaiian and Pitcairn islands, north to the Ogasawara Islands, south to the Great Barrier Reef and New Caledonia. Primarily around oceanic islands.
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Indo-West Pacific: East Africa, Aldabra and Réunion (western Mascarenes) east to Wake Atoll and Pitcairn Group, north to Ogasawara Islands, south to Elizabeth Reef, New Caledonia, Tonga and Rapa.
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Physical Description

Morphology

Dorsal spines (total): 12; Dorsal soft rays (total): 12 - 14; Analspines: 2; Analsoft rays: 12 - 14
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Size

Maximum size: 75 mm SL
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Max. size

7.5 cm SL (male/unsexed; (Ref. 7247))
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Diagnostic Description

Description

Occurs in clear lagoon and seaward reefs, usually in loose aggregations near caves and ledges.
  • Smith, J.L.B. (1960). Coral Fishes of the Family Pomacentridae from the Western Indian Ocean and the Red Sea. Ichthyological Bulletin No. 19: 317-349
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Fish is rich golden brown, shading to purplish pink on lower head and chest. This species is distinguished from other similar Chromis by the large dark spot at the pectoral fin base.
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Ecology

Habitat

Environment

reef-associated; non-migratory; marine; depth range 3 - 65 m (Ref. 1602)
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Depth range based on 21 specimens in 1 taxon.
Water temperature and chemistry ranges based on 12 samples.

Environmental ranges
  Depth range (m): 2 - 40.5
  Temperature range (°C): 25.712 - 28.764
  Nitrate (umol/L): 0.040 - 0.356
  Salinity (PPS): 34.209 - 35.265
  Oxygen (ml/l): 4.444 - 4.802
  Phosphate (umol/l): 0.103 - 0.204
  Silicate (umol/l): 0.910 - 1.571

Graphical representation

Depth range (m): 2 - 40.5

Temperature range (°C): 25.712 - 28.764

Nitrate (umol/L): 0.040 - 0.356

Salinity (PPS): 34.209 - 35.265

Oxygen (ml/l): 4.444 - 4.802

Phosphate (umol/l): 0.103 - 0.204

Silicate (umol/l): 0.910 - 1.571
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 3 - 65m.
From 3 to 65 meters.

Habitat: reef-associated. Occurs in clear lagoon and seaward reefs, usually in loose aggregations near caves and ledges. Abundant over branching corals and leeward coasts (Ref. 9710).
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Trophic Strategy

Occurs inshore (Ref. 75154). Found in clear lagoon and seaward reefs, usually in loose aggregations near caves and ledges. Abundant over branching corals and leeward coasts (Ref. 9710). Feeds on plants and zooplankton (Ref. 26990).
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Life History and Behavior

Life Cycle

Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Chromis agilis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 9
Species With Barcodes: 1
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Barcode data: Chromis agilis

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 3 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

CACCCTATACCTAGTATTTGGTGCCTGAGCAGGTATGGTAGGCACAGCCTTAAGCCTTCTCATCCGAGCAGAACTGAGCCAACCAGGTGCTCTCCTGGGAGACGACCAGATTTATAACGTTATCGTTACGGCACACGCCTTCGTAATAATTTTCTTTATAGTAATGCCAATCATAATTGGAGGATTCGGAAACTGACTTATTCCCCTAATGATCGGAGCCCCTGACATGGCATTCCCTCGAATGAACAATATGAGCTTCTGACTATTGCCCCCTTCATTCCTCCTTCTTCTCGCCTCTTCAGGCGTTGAAGCAGGGGCAGGCACAGGGTGAACCGTTTATCCTCCCTTATCCGGAAACTTAGCCCACGCGGGAGCCTCTGTAGACTTAACTATCTTCTCCTTACACCTAGCAGGGATCTCTTCAATCCTTGGGGCAATCAATTTTATCACAACTATTATTAACATGAAGCCCCCTGCCATCTCCCAATACCAAACACCCCTATTTGTGTGGGCCGTTCTAATTACTGCTGTTCTCCTTCTCCTCTCCCTTCCAGTCTTAGCCGCTGGTATCACCATGCTCCTAACAGACCGAAATCTAAATACCACATTCTTTGACCCTGCAGGAGGGGGAGACCCAATCCTTTACCAACACTTA
-- end --

Download FASTA File
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
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