Chaetodon falcula 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Perciformes Chaetodontidae

Scientific Name: Chaetodon falcula Bloch, 1795
Common Name(s):
English Blackwedged Butterflyfish, Blackwedged Butterflyfish, Double-saddled Butterflyfish, Indian Double-saddle Butterflyfish, Pigface Coralfish, Saddleback Butterflyfish, Saddled Butterflyfish, Sickle Butterflyfish
French Ch├ętodon faucille
Anisochaetodon falcula (Bloch, 1795)
Chaetodon dizoster Valenciennes, 1831
Tetragonoptrus dizoster (Valenciennes, 1831)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2009-10-07
Assessor(s): Allen, G. & Myers, R.
Reviewer(s): Elfes, C., Polidoro, B., Livingstone, S. & Carpenter, K.E.
While there is no information on the diet of this species it is likely to be an obligate corallivore. Coral depletion may cause some declines, but there is no data on temporal trends in the abundance of this species. This is a widespread species and common. It is listed as Least Concern.

Geographic Range [top]

Range Description:This species ranges throughout the tropical Indian Ocean from Kenya to northern South Africa on the east African Coast, Madagascar including the western and central Indian Ocean islands, Southern India, Sri Lanka, Nicobar and Andaman Islands (India) and western Thailand east to Java (G.R. Allen pers. comm. 2006). It is found at depths of 1-15 m.
Countries occurrence:
British Indian Ocean Territory; Comoros; French Southern Territories (Mozambique Channel Is.); India; Indonesia; Kenya; Madagascar; Malaysia; Maldives; Mauritius; Mayotte; Mozambique; Myanmar; Seychelles; South Africa; Sri Lanka; Tanzania, United Republic of; Thailand
FAO Marine Fishing Areas:
Indian Ocean – western; Indian Ocean – eastern; Pacific – western central
Additional data:
Lower depth limit (metres):15
Upper depth limit (metres):1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is common. While it is may be reliant on live coral, there is no information on population trends for this species.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species occurs in areas of rich coral growth in lagoons or on seaward reefs (Allen 1980, G.R. Allen pers. comm. 2006). It is usually seen in pairs or small aggregations that may contain as many as 20 individuals (Allen 1980). There is not data on the diet of this species, but it is assumed to feed on hard and soft corals, like the sister species C. ulientensis (M. Pratchett pers. comm. 2009).

Use and Trade [top]

Use and Trade: This species is sometimes collected for the aquarium trade (G.R. Allen pers. comm. 2006). It is frequently exported from Sri Lanka (Allen 1980).

Threats [top]

Major Threat(s): This species probably feeds on live coral, and may therefore decline in abundance following climate-induced coral depletion (Pratchett et al. 2008). Currently there have been no documented declines associated with coral loss, and there appear to be no other major threats to this species.

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for Chaetodon falcula. This species is likely to be 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. Research is  needed to establish the dietary requirements for this species.

Citation: Allen, G. & Myers, R. 2010. Chaetodon falcula. The IUCN Red List of Threatened Species 2010: e.T165607A6066720. . Downloaded on 27 May 2018.
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