Habitat and Ecology
Water temperature and chemistry ranges based on 1 sample.
Depth range (m): 2 - 21
Temperature range (°C): 28.575 - 28.575
Nitrate (umol/L): 0.323 - 0.323
Salinity (PPS): 34.228 - 34.228
Oxygen (ml/l): 4.448 - 4.448
Phosphate (umol/l): 0.171 - 0.171
Silicate (umol/l): 3.194 - 3.194
Depth range (m): 2 - 21
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
From 3 to 25 meters.
Habitat: reef-associated. Inhabits coral reefs and occurs in pairs or groups, usually near soft coral (Ref. 9710). Has never been imported although it can be easily maintained in a tank.
Life History and Behavior
Molecular Biology and Genetics
Statistics of barcoding coverage: Chaetodon adiergastos
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
There have been no declines documented for this species It has a relatively wide distribution, apparently large population and no obvious major threats other than coral loss. The impacts of coral reef degradation are unknown. Collection is limited and is not considered to be impacting the global population. It is therefore listed as Least Concern. It is recommended that further research is carried out on the threats and feeding behaviour of this species.
It is generally common with stable populations (G.R. Allen pers. comm. 2006).
There appear to be no major threats to this species. Collection is limited and is not considered to be impacting the global population. There has been widespread coral degradation throughout its range which may have impacted the population, although it is not known to what extent.
There appear to be no species specific conservation measures in place (G.R. Allen pers. comm. 2006). This species is presumably present in a number of regional marine protected areas. Further field surveys are needed to better determine the distribution, natural history (its diet is unknown) and possible threats from coral reef degradation.
Relevance to Humans and Ecosystems
The Philippine Butterflyfish, Chaetodon adiergastos, is a species of butterflyfish (family Chaetodontidae). It is found in the western Pacific, from the Ryukyu Islands and Taiwan to Java and northwestern Australia.
It grows to a maximum length of 20 cm (nearly 8 in). The body is white with diagonal brown stripes on the sides. The dorsal, caudal, anal and pelvic fins are yellow. There are rounded broad black bands on the face, covering the eye, but not continuous from one side of the body to the other but with a separate black spot centered on the forehead.
It belongs to the large subgenus Rabdophorus which might warrant recognition as a distinct genus. In this group, it appears to belong to a loose group including such species as the Black Butterflyfish (C. flavirostris), Diagonal Butterflyfish (C. fasciatus), Raccoon Butterflyfish (C. lunula) and perhaps also the unusual Red-tailed Butterflyfish (C. collare). Although the coloration of this group varies quite a lot, they are all largish butterflyfishes with an oval outline, and most have a pattern of ascending oblique stripes on the flanks. Except in the Red-tailed Butterflyfish, there is at least a vestigial form of the "raccoon" mask, with a white space between the dark crown and eye areas.
The Philippine Butterflyfish is found in coral reefs at depths of 1-30m and occurs in pairs or groups, usually near soft coral. Juveniles are solitary and found on shallow protected reefs or in estuaries.
- Myers, R. & Pratchett, M. 2010. Chaetodon adiergastos. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. <www.iucnredlist.org>. Downloaded on 10 September 2013.
- FishBase 
- Dianne J. Bray, 2011, Philippine Butterflyfish, Chaetodon adiergastos, in Fishes of Australia, accessed 07 Oct 2014, http://www.fishesofaustralia.net.au/home/species/2372
- Fessler & Westneat (2007), Hsu et al. (2007)
|Wikimedia Commons has media related to Chaetodon adiergastos.|
- Fessler, Jennifer L. & Westneat, Mark W. (2007): Molecular phylogenetics of the butterflyfishes (Chaetodontidae): Taxonomy and biogeography of a global coral reef fish family. Mol. Phylogenet. Evol. 45(1): 50–68. doi:10.1016/j.ympev.2007.05.018 (HTML abstract)
- FishBase : Chaetodon adiergastos. Retrieved 2008-SEP-01.
- Hsu, Kui-Ching; Chen, Jeng-Ping & Shao, Kwang-Tsao (2007): Molecular phylogeny of Chaetodon (Teleostei: Chaetodontidae) in the Indo-West Pacific: evolution in geminate species pairs and species groups. Raffles Bulletin of Zoology Supplement 14: 77-86. PDF fulltext
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