Overview

Comprehensive Description

Biology

Adults inhabit inshore and offshore coral reefs (Ref. 9710). Also found in harbors, lagoons and outer reef slopes. The only pomacentrid species that lacks a pelagic larval stage. One of the very few marine fishes where fry are guarded by the parents (Ref. 9710, 48636). School as they grow and sub-adults are usually seen in small groups. Adults form pairs and are territorial when breeding (Ref. 48636). Monogamous (Ref. 52884). Oviparous (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

Western Pacific: Indonesia and the Philippines to northeastern Australia and Melanesia.
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Western Pacific.
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Physical Description

Morphology

Dorsal spines (total): 17; Dorsal soft rays (total): 14 - 16; Analspines: 2; Analsoft rays: 14 - 16
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Size

Maximum size: 110 mm SL
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Max. size

14.0 cm TL (male/unsexed; (Ref. 48636))
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Diagnostic Description

Color pattern variable, ranging from entirely blackish to uniform pale gray.
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Type Information

Paratype for Acanthochromis polyacanthus
Catalog Number: USNM 109381
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): A. Seale
Year Collected: 1903
Locality: Solomons Is., Short Land Island, Shortland Islands, Solomon Islands, Pacific
  • Paratype: Seale, A. 1906. Occasional Papers of the Bernice P. Bishop Museum. 4 (1): 53.
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Paratype for Acanthochromis polyacanthus
Catalog Number: USNM 98241
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1908
Locality: Tataan Island; Sulu Archipelago, Tawi Tawi Group, Tataan, Tawi Tawi Group, Tawitawi, Philippines, Sulu Archipelago, Sulu Sea, Pacific
Vessel: Albatross
  • Paratype: Fowler, H. W. & Bean, B. A. 1928. Bulletin of the United States National Museum. No. 100: 51.
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Paratype for Acanthochromis polyacanthus
Catalog Number: USNM 93520
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1908
Locality: Tataan Island; Sulu Archipelago, Tawi Tawi Group, Tataan, Tawi Tawi Group, Tawitawi, Philippines, Sulu Archipelago, Sulu Sea, Pacific
Vessel: Albatross
  • Paratype: Fowler, H. W. & Bean, B. A. 1928. Bulletin of the United States National Museum. No. 100: 51.
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Holotype for Acanthochromis polyacanthus
Catalog Number: USNM 89954
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1908
Locality: Tataan Island; Sulu Archipelago, Tawi Tawi Group, Tataan, Tawi Tawi Group, Tawitawi, Philippines, Sulu Archipelago, Sulu Sea, Pacific
Vessel: Albatross
  • Holotype: Fowler, H. W. & Bean, B. A. 1928. Bulletin of the United States National Museum. No. 100: 51.
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Ecology

Habitat

Environment

reef-associated; non-migratory; marine; depth range 1 - 65 m (Ref. 9710)
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Depth range based on 26 specimens in 1 taxon.
Water temperature and chemistry ranges based on 18 samples.

Environmental ranges
  Depth range (m): 1 - 38
  Temperature range (°C): 24.659 - 28.575
  Nitrate (umol/L): 0.019 - 0.923
  Salinity (PPS): 33.721 - 35.373
  Oxygen (ml/l): 4.447 - 4.825
  Phosphate (umol/l): 0.071 - 0.237
  Silicate (umol/l): 0.567 - 3.194

Graphical representation

Depth range (m): 1 - 38

Temperature range (°C): 24.659 - 28.575

Nitrate (umol/L): 0.019 - 0.923

Salinity (PPS): 33.721 - 35.373

Oxygen (ml/l): 4.447 - 4.825

Phosphate (umol/l): 0.071 - 0.237

Silicate (umol/l): 0.567 - 3.194
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 1 - 65m.
From 1 to 65 meters.

Habitat: reef-associated.
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Trophic Strategy

Inhabits inshore and offshore coral reefs (Ref. 9710). Also found in harbors, lagoons and outer reef slopes (Ref. 7247).
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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: Acanthochromis polyacanthus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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