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Overview

Comprehensive Description

Biology

Found on inshore reefs, lagoons, and seaward reefs (Ref. 37816). Nocturnal species (Ref. 7300). Feeds on small benthic crustaceans (Ref. 37816). Maximum depth reported taken from Ref. 57178.
  • Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley 1989 Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
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Distribution

Indo-Pacific. Replaced by Apogon coccineus from the Red Sea to Persian Gulf and by Apogon erythrinus in the Hawaiian Islands (Ref. 37816).
  • Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley 1989 Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
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Indo-West Pacific: East Africa east to Easter Island, north to Wake Atoll, south to Western Australia, New South Wales (Australia), Lord Howe Island, New Caledonia, Tonga and Rapa.
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Physical Description

Morphology

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Analspines: 2; Analsoft rays: 8
  • Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino 1984 The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
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Size

Max. size

5.0 cm TL (male/unsexed; (Ref. 90102))
  • Allen, G.R. and M.V. Erdmann 2012 Reef fishes of the East Indies. Perth, Australia: Universitiy of Hawai'i Press, Volumes I-III. Tropical Reef Research. (Ref. 90102)
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Diagnostic Description

Distinguished by having the following characteristics: dorsal-fin rays VI-I, 9; anal-fin rays II,8; pectoral fin rays 13; pelvic fin rays I,5; pored lateral line scales 24; predorsal scales 5-6; large scale between first dorsal fin and lateral line 1; circumpeduncular scales 12; total gill rakers 15-16, developed gill rakers 8-9; full scale between first dorsal fin and lateral line 1, often with smaller second scale (Ref. 93839). Resembles A. unicolor but distinguished by fewer spines in the 1st dorsal fin (6 against 7), large scales, and fewer lateral line scales (23 against 25). Body color uniformly dark reddish, each scale mottled with brown. Attains 10 cm TL. Further characterized by having a semi-transparent red color, with a thin, dark red stripe on mid-lateral surface of the body (Ref. 93839) greatest depth of body 2.7-3.0 in SL (Ref 90102).
  • Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino 1984 The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
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Ecology

Habitat

Environment

reef-associated; marine; depth range 18 - 55 m (Ref. 37816)
  • Myers, R.F. 1999 Micronesian reef fishes: a comprehensive guide to the coral reef fishes of Micronesia, 3rd revised and expanded edition. Coral Graphics, Barrigada, Guam. 330 p. (Ref. 37816)
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Depth range based on 53 specimens in 1 taxon.
Water temperature and chemistry ranges based on 21 samples.

Environmental ranges
  Depth range (m): 0.15 - 53.35
  Temperature range (°C): 22.368 - 29.061
  Nitrate (umol/L): 0.026 - 2.632
  Salinity (PPS): 32.183 - 35.552
  Oxygen (ml/l): 4.407 - 5.079
  Phosphate (umol/l): 0.124 - 0.246
  Silicate (umol/l): 1.127 - 14.847

Graphical representation

Depth range (m): 0.15 - 53.35

Temperature range (°C): 22.368 - 29.061

Nitrate (umol/L): 0.026 - 2.632

Salinity (PPS): 32.183 - 35.552

Oxygen (ml/l): 4.407 - 5.079

Phosphate (umol/l): 0.124 - 0.246

Silicate (umol/l): 1.127 - 14.847
 
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Trophic Strategy

Found on inshore reefs, lagoons, and seaward reefs (Ref. 37816). Nocturnal species (Ref. 7300). Feeds on small benthic crustaceans (Ref. 37816).
  • Myers, R.F. 1999 Micronesian reef fishes: a comprehensive guide to the coral reef fishes of Micronesia, 3rd revised and expanded edition. Coral Graphics, Barrigada, Guam. 330 p. (Ref. 37816)
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Life History and Behavior

Life Cycle

Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).
  • Thresher, R.E. 1984 Reproduction in reef fishes. T.F.H. Publications, Inc. Ltd., Neptune City, New Jersey. 399 p. (Ref. 240)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Apogon crassiceps

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 10
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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