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Chaetodon ornatissimus

Abstract

Chaetodon ornatissimus has most recently been assessed for The IUCN Red List of Threatened Species in 2009. Chaetodon ornatissimus is listed as Least Concern.


The Red list Assessmenti

Last assessed

08 October 2009

Scope of assessment

Global

Population trend

Unknown

Number of mature individuals

Population in detail

Habitat and ecology

Marine Neritic

Habitat and ecology in detail

Geographic range

+−
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  • Extant (resident)

International Union for Conservation of Nature (IUCN) 2010. Chaetodon ornatissimus. The IUCN Red List of Threatened Species. Version 2021-3
Geographic range in detail

Taxonomy

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Perciformes

Family

Chaetodontidae

Genus

Chaetodon

Scientific name

Chaetodon ornatissimus

Authority

Cuvier, 1831

Synonyms

Chaetodon lydiae Curtiss, 1938

Chaetodon ornatissimus kaupi Ahl, 1923

Chaetodon ornatus Gray, 1831

Common names

English

Clown Butterflyfish, Ornate Butterfly, Ornate Butterflyfish, Ornate Butterflyfish, Ornate Coralfish

Danish

Klovnfanefisk

Japanese

Hanaguro-chô-chô-uo

Undetermined

Alibangbang, Banera, Kepe sebra kuning, Paraharaha, Paru-paro, Paru-parung dagat, Tifitifi-'ava'ava

Taxonomic sources

Identification Information

Taxonomic notes

Assessment Information

IUCN Red List Category and Criteria

Least Concern 

ver 3.1

Date assessed

08 October 2009

Year published

2010

Annotations

Needs updating

Year last seen

Previously published Red List assessments

    Regional assessments

      Assessor(s)

      Myers, R. & Pratchett, M.

      Reviewer(s)

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

      Contributor(s)

      Facilitator(s) / Compiler(s)

      Partner(s) / Institution(s)

      Authority / Authorities

      Justification

      Chaetodon ornatissimus feeds exclusively on live coral, making it susceptible to extensive coral loss. There have been localized declines documented due to coral loss,  however, it has a wide distribution, apparently large population and no obvious major threats other than coral loss. It is listed as Least Concern.

      Geographic Range

      Native

      Extant (resident)

      American Samoa; Australia; Bangladesh; Christmas Island; Cocos (Keeling) Islands; Cook Islands; Fiji; French Polynesia; Guam; Hong Kong; India (Nicobar Is., Andaman Is.); Indonesia; Japan; Kiribati (Phoenix Is.); Malaysia; Marshall Islands; Micronesia, Federated States of ; Myanmar; Nauru; New Caledonia; Niue; Northern Mariana Islands; Palau; Papua New Guinea; Philippines; Pitcairn; Samoa; Singapore; Solomon Islands; Sri Lanka; Taiwan, Province of China; Thailand; Tokelau; Tonga; Tuvalu; United States (Hawaiian Is.); United States Minor Outlying Islands (Wake Is., Johnston I., Howland-Baker Is., US Line Is.); Vanuatu; Viet Nam; Wallis and Futuna

      Number of locations

      Upper depth limit

      1 metres

      Lower depth limit

      36 metres

      FAO Fishing Areas

      OriginLocations
      NativePacific - eastern central
      NativePacific - northwest
      NativeIndian Ocean - eastern
      NativePacific - southwest
      NativePacific - western central

      Estimated area of occupancy (AOO) (km²)

      Continuing decline in area of occupancy (AOO)

      Extreme fluctuations in area of occupancy (AOO)

      Estimated extent of occurrence (EOO) (km²)

      Continuing decline in extent of occurrence (EOO)

      Extreme fluctuations in extent of occurrence (EOO)

      Continuing decline in number of locations

      Extreme fluctuations in the number of locations

      Range Description

      This species is widespread in the Indo-west Pacific from the Seychelles and Maldives to the Pitcairn group north to southern Japan and the Hawaiian Islands, and south to Lord Howe and Rapa Iti Islands. Records from the western and central Indian Ocean from the Seychelles and Maldives are likely based on vagrants (R. Myers pers. comm. 2009). This species is found at depths of 1-36 m.

      Population

      Current population trend

      Unknown

      Number of mature individuals

      Population severely fragmented

      No

      Continuing decline of mature individuals

      Extreme fluctuations

      No. of subpopulations

      Continuing decline in subpopulations

      Extreme fluctuations in subpopulations

      All individuals in one subpopulation

      No. of individuals in largest subpopulation

      Description

      It is generally common. This species has shown a substantial decline following coral loss at Moorea (French Polynesia) in 1981, but has since recovered (Berumen and Pratchett 2006).



      Habitat and Ecology

      System

      Habitat type

      Marine Neritic

      Generation length (years)

      Congregatory

      Movement patterns

      Continuing decline in area, extent and/or quality of habitat

      Habitat and Ecology

      This species occurs in coral-rich areas, in lagoons and on outer reefs. Depth range is from 1-36 m. Feeds exclusively on coral polyps and exhibits home-ranging behaviour. Juveniles occur singly among the branches of hard corals (G.R. Allen pers. comm. 2006). This species is unique among coral-feeding butterflyfishes as it tends to feed on mucous rather than coral tissue (Cole et al. 2008).

      Classification scheme

      HabitatsSuitabilityMajor importance
      9. Marine Neritic9.8. Marine Neritic - Coral Reef9.8.1. Outer Reef ChannelSuitableYes
      9.8.2. Back SlopeSuitableYes
      9.8.3. Foreslope (Outer Reef Slope)SuitableYes
      9.8.4. LagoonSuitableYes

      Threats

      Biological resource use

      • Fishing & harvesting aquatic resources

      Climate change & severe weather

      • Habitat shifting & alteration

      Threats

      This species relies on live coral for food and/or recruitment and was shown to decline following coral depletion in 1981 in a small part of its range, but has since recovered (Berumen and Pratchett 2006). There appear to be no other major threats to this species.

      Classification scheme

      ThreatsTimingStressesScopeSeverityImpact scoreInvasive speciesVirus
      5. Biological resource use5.4. Fishing & harvesting aquatic resources5.4.1. Intentional use: (subsistence/small scale) [harvest]Ongoing
      2. Species Stresses2.1. Species mortality
      		UnknownUnknownUnknown
      11. Climate change & severe weather11.1. Habitat shifting & alterationOngoing
      1. Ecosystem stresses1.2. Ecosystem degradation
      2. Species Stresses2.1. Species mortality
      		Low Impact: 3

      Use and Trade

      Pets/display animals, horticulture

      Local: ✘
      National: ✔
      International: ✔

      Use and Trade

      Occasionally exported through the aquarium trade. Usually starves when kept in captivity (Pyle 2001).

      Conservation Actions

      In-place land/water protection

      • Occurs in at least one protected area : Yes

      Conservation Actions

      There appear to be no species-specific conservation measures in place. 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.

      Conservation actions classification scheme

      Conservation Actions NeededNotes

      Research classification scheme

      Research NeededNotes
      1. Research1.3. Life history & ecology
      3. Monitoring3.1. Population trends
      3.4. Habitat trends

      Bibliography

      Berumen, M.L. and Pratchett, M.S. 2006. Recovery without resilience: persistent distrubance and long-term shifts in the structure of fiosh and coral communities at Tiahura Reef, Moorea. Coral Reefs 25: 647-653.

      Burgess, W.E. 1978. Butterflyfishes of the world. A monograph of the Family Chaetodontidae. T.F.H. Publications, Neptune City, New Jersey.

      Cole, A.J., Pratchett, M.S. and Jones, G.P. 2008. Diversity and functional importance of coral-feeding fishes on tropical coral reefs. Fish and Fisheries 9: 286-307.

      IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.4). Available at: http://www.iucnredlist.org. (Accessed: 27 October 2010).

      Pyle, R. 2001. Chaetodontidae. Butterflyfishes. In: K.E. Carpenter and V.H. Niem (eds), FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 5. Bony fishes part 3 (Menidae to Pomacentridae), pp. 3224-3265. FAO, Rome.

      Randall, J.E., Williams, J.T., Smith, D.G., Kulbicki, M., Tham, G.M., Labrosse, P., Kronen, M., Clua, E. and Mann, B.S. 2003. Checklist of the shore and epipelagic fishes of Tonga. Atoll Research Bulletin 502: 1-37.

      Steene, R.C. 1978. Butterfly and angelfishes of the world. A.H. and A.W. Reed Pty Ltd., Australia.

      External Data

      Images and External Links

      iNaturalist.org observations

      Search sites for species

      GooglePicSearchCalPhotosFishBaseNatureServe ExplorerGBIF - Global Biodiversity Information Facility Encyclopedia of LifeCatalogue of Life (Species2000)WoRMS - World Register of Marine Species

      CITES Legislation from Species+

      Data Source

      The information below is from the Species+ website.

      Studies and Actions from Conservation Evidence

      Data Source

      The information below is from the Conservation Evidence website.

      Search terms: "Chaetodon ornatissimus", "Chaetodontidae"

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