Overview

Comprehensive Description

Biology

Primarily found in seaward reef slopes, but occasionally on lagoon reefs and reef tops (Ref. 9710). 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

Western Indian Ocean: Chagos archipelago.
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Western Indian Ocean.
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Physical Description

Morphology

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 15 - 17; Analspines: 2; Analsoft rays: 13 - 14
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Size

Maximum size: 110 mm NG
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Max. size

11.0 cm TL (male/unsexed; (Ref. 9710))
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Type Information

Holotype for Amphiprion chagosensis Allen
Catalog Number: USNM 204301
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): H. Fehlmann & G. Payet
Year Collected: 1967
Locality: Chagos Archipelago, Diego Garcia Atoll, ca. 1500 m. N of East Point on reef off E shore of lagoon., Diego Garcia Atoll, Chagos Archipelago, British Indian Ocean Territory, Indian
Depth (m): 1 to 2
  • Holotype: Allen, G. R. 1972. The Anemonefishes. Their classification and biology. 138, figs. 66-67.
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Paratype for Amphiprion chagosensis Allen
Catalog Number: USNM 204302
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): H. Fehlmann & C. Rhyne
Year Collected: 1967
Locality: Chagos Archipelago, Diego Garcia Atoll, patch of reef ca. 260 m N of geographical East Point., Diego Garcia Atoll, Chagos Archipelago, British Indian Ocean Territory, Indian
Depth (m): 0.5 to 2
  • Paratype: Allen, G. R. 1972. The Anemonefishes. Their classification and biology. 138, figs. 66-67.
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Paratype for Amphiprion chagosensis Allen
Catalog Number: USNM 204304
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): H. Fehlmann
Year Collected: 1967
Locality: Chagos Archipelago, Diego Garcia Atoll, atoll lagoon reef ca. 3/4 mile SE of East Point Village., Diego Garcia Atoll, Chagos Archipelago, British Indian Ocean Territory, Indian
Depth (m): 1 to 2
  • Paratype: Allen, G. R. 1972. The Anemonefishes. Their classification and biology. 138, figs. 66-67.
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Paratype for Amphiprion chagosensis Allen
Catalog Number: USNM 204303
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): H. Fehlmann & C. Rhyne
Year Collected: 1967
Locality: Indian Ocean: Chagos Archipelago, Diego Garcia Atoll, Outer Edge of Turtle-Grass Bed E. of S. End of West I., NW Sector of Atoll., Diego Garcia Atoll, Chagos Archipelago, British Indian Ocean Territory, Indian
Depth (m): 2
  • Paratype: Allen, G. R. 1972. The Anemonefishes. Their classification and biology. 138, figs. 66-67.
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Ecology

Habitat

Environment

reef-associated; non-migratory; marine; depth range 10 - 25 m (Ref. 7247)
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Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 1 - 2
  Temperature range (°C): 28.006 - 28.006
  Nitrate (umol/L): 0.402 - 0.402
  Salinity (PPS): 34.563 - 34.563
  Oxygen (ml/l): 4.503 - 4.503
  Phosphate (umol/l): 0.220 - 0.220
  Silicate (umol/l): 4.752 - 4.752

Graphical representation

Depth range (m): 1 - 2
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 10 - 25m.
From 10 to 25 meters.

Habitat: reef-associated. Primarily found in seaward reef slopes, but occasionally on lagoon reefs and reef tops (Ref. 9710).
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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). Also Ref. 7471.
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Conservation

Threats

Not Evaluated
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