Overview

Comprehensive Description

Biology

Inhabit coastal and inner reefs; juveniles among branching corals. Solitary or paired (Ref. 9710). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).
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Distribution

Range Description

This species ranges from southern Papua New Guinea to the tropical Australian coast between North West Cape and the Great Barrier Reef. It occurs at depths of 1-20 m. Range size ~2.7million km2 from values estimated by Jones et al. (2002) based on projection of distribution maps from Allen et al. (1998)
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Western Pacific: northern Australia, from Western Australia to the Great Barrier Reef; New Guinea and perhaps further into Melanesia. Very closely related to Chaetodon rainfordi and the two species are sympatric over part of their ranges.
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Australia and New Guinea.
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Physical Description

Morphology

Dorsal spines (total): 11; Dorsal soft rays (total): 20 - 22; Analspines: 3; Analsoft rays: 17 - 18; Vertebrae: 24
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Size

Maximum size: 125 mm NG
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Max. size

12.5 cm TL (male/unsexed; (Ref. 9710))
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Diagnostic Description

Body nearly circular. Preopercle obtuse-angled, smooth to finely serrate. Eye diameter is greater than snout length. Dorsal and anal fins strongly and equally rounded and do not appear confluent with caudal fin. Pelvic fins long, extending as far as second anal fin spine base. Juveniles similar in shape to adults. Axillary scale present. Color: Eyebands join at nape and extend to chest as two indistinct lines, the anterior lines again joined. Indistinct dark bordered light stripe in interorbital.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Inhabits coastal and offshore reefs at depths of 1-20 m. It can tolerate relatively high percentages of freshwater and is frequently encountered in coastal areas in the vicinity of river mouths (Steene 1978). It forms pairs or small groups (Pyle 2001). It is an obligate corallivore (Pratchett 2005), but persists in areas of sparse coral growth.

Systems
  • Marine
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Environment

reef-associated; non-migratory; brackish; marine; depth range 5 - 15 m (Ref. 9710)
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Depth range based on 67 specimens in 1 taxon.
Water temperature and chemistry ranges based on 10 samples.

Environmental ranges
  Depth range (m): 0.5 - 70
  Temperature range (°C): 25.048 - 26.803
  Nitrate (umol/L): 0.090 - 1.948
  Salinity (PPS): 34.975 - 35.180
  Oxygen (ml/l): 4.107 - 4.670
  Phosphate (umol/l): 0.131 - 0.316
  Silicate (umol/l): 0.567 - 5.767

Graphical representation

Depth range (m): 0.5 - 70

Temperature range (°C): 25.048 - 26.803

Nitrate (umol/L): 0.090 - 1.948

Salinity (PPS): 34.975 - 35.180

Oxygen (ml/l): 4.107 - 4.670

Phosphate (umol/l): 0.131 - 0.316

Silicate (umol/l): 0.567 - 5.767
 
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Depth: 5 - 15m.
From 5 to 15 meters.

Habitat: reef-associated. Inhabits coastal and inner reefs; juveniles among branching corals. Solitary or paired (Ref. 9710).
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Trophic Strategy

Occur inshore (Ref. 75154). Also seen in pairs.
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Life History and Behavior

Life Cycle

Form pairs during breeding (Ref. 205).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Chaetodon aureofasciatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Pyle, R., Myers, R., Craig, M.T. & Pratchett, M.

Reviewer/s
Elfes, C., Polidoro, B., Livingstone, S. & Carpenter, K.E.

Contributor/s

Justification
While there have been no declines documented, Chaetodon aureofasciatus feeds exclusively on live coral and likely to be susceptible to extensive coral loss. It has a relatively wide distribution and persists in marginal coral reef habitats. There are no obvious major threats beyond coral loss. It is listed as Least Concern.
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Population

Population

It is generally common with stable populations (G.R. Allen pers. comm. 2006). Common on the inner and coastal reefs of the Great Barrier Reef (Steene 1978). Mean of 0.3 individuals per 200 m2 in northern Great Barrier Reef (Pratchett and Berumen 2008).


Population Trend
Stable
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Threats

Major Threats

This species relies on live coral for food and/or recruitment, and may therefore decline in abundance following climate-induced coral depletion (Pratchett et al. 2008). Currently there has been no documented declines associated with coral loss, and there appear to be no other major threats to this species.

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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions

There are no species-specific conservation measures in place for Chaetodon aureofasciatus. This species is present within marine protected areas. Monitoring of this species is needed in conjunction with coral monitoring, as well as determination of the degree of co-dependence between this species and corals.

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Relevance to Humans and Ecosystems

Benefits

Importance

aquarium: commercial
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