Emperor angelfish

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Emperor angelfish
Adult fish in Red Sea

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Pomacanthidae
Genus: Pomacanthus
Species:
P. imperator
Binomial name
Pomacanthus imperator
(Bloch, 1787)
Synonyms[2]
  • Chaetodon imperator Bloch, 1787
  • Acanthochaetodon imperator (Bloch, 1787)
  • Holacanthus imperator (Bloch, 1787)
  • Pomacanthodes imperator (Bloch, 1787)
  • Chaetodon nicobariensis Bloch & Schneider, 1801
  • Acanthochaetodon nicobariensis (Bloch & Schneider, 1801)
  • Holacanthus nicobariensis (Bloch & Schneider, 1801)
  • Pomacanthus nicobariensis (Bloch & Schneider, 1801)

The emperor angelfish (Pomacanthus imperator) is a species of marine angelfish. It is a reef-associated fish, native to the Indian and Pacific Oceans, from the Red Sea to Hawaii and the Austral Islands. This species is generally associated with stable populations and faces no major threats of extinction.[1] It is a favorite of photographers, artists, and aquarists because of its unique, brilliant pattern of coloration.

Description

Juvenile

The emperor angelfish shows a marked difference between the juveniles and the adults. The juveniles have a dark blue body which is marked with concentric curving lines, alternating between pale blue and white with the smallest which are completely enclosed within each other located posteriorly. These lines become vertical at the anterior end.

anal fin has 3 spines and 18–21 soft rays. This species attains a maximum total length of 40 cm (16 in).[2]

Distribution

The emperor angelfish has a wide Indo-Pacific distribution. It occurs from the Red Sea southwards along the East African coast to Mozambique and Madagascar, eastwards through the Indian and Pacific Oceans as far as the

Mediterranean basin where it now found in low numbers in a number of localities.[5][6]

Habitat and biology

The emperor angelfish is found at depths between 1 and 100 metres (3.3 and 328.1 ft).

tunicates. They form pairs. The juveniles and adults may act as cleaner fish, cleaning ectoparasites off larger fishes.[2] When frightened, these fish can produce a knocking sound.[4]

Systematics

The emperor angelfish was first formally described in 1787 as Chaetodon imperator by the

type locality given as Japan.[8] Some authorities place this species in the subgenus Acanthochaetodon. The specific name imperator means “emperor” and reflects the Dutch name Keyser van Iapan meaning “Emperor of Japan” coined by the publisher Louis Renard (ca. 1678-1746) in 1719, possibly reflecting its majestic appearance.[9]

Utilisation

The emperor angelfish is common in the aquarium trade.[1]

Gallery

  • Emperor angelfish at Wakatobi National Park, 2018
    Emperor angelfish at Wakatobi National Park, 2018
  • Emperor angelfish at Sea Life Bangkok Ocean World, 2007
    Emperor angelfish at Sea Life Bangkok Ocean World, 2007
  • Emperor angelfish at Raja Ampat, 2020
    Emperor angelfish at
    Raja Ampat
    , 2020
  • Emperor angelfish at Réunion Island France, 2013
    Emperor angelfish at
    Réunion Island
    France, 2013
  • Adult Emperor angelfish,2012
    Adult Emperor angelfish,2012
  • Juvenile Emperor angelfish at Manatuto Timor-Leste, 2006
    Juvenile Emperor angelfish at Manatuto Timor-Leste, 2006
  • Juvenile Emperor angelfish at Manatuto Timor-Leste, 2006
    Juvenile Emperor angelfish at Manatuto Timor-Leste, 2006
  • Close up of Juvenile Emperor angelfish at Marsa Alam Egypt, 2014
    Close up of Juvenile Emperor angelfish at Marsa Alam Egypt, 2014

References

Wikimedia Commons has media related to:
Pomacanthus imperator (category)
Wikispecies has information related to Pomacanthus imperator.
  1. ^
    doi:10.2305/IUCN.UK.2010-4.RLTS.T165862A6151184.en
    . Retrieved 19 November 2021.
  2. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2019). "Pomacanthus imperator" in FishBase. December 2019 version.
  3. ^ a b "Pomacanthus imperator". Saltcorner!. Bob Goemans. 2012. Retrieved 1 March 2021.
  4. ^ a b c d "Pomacanthus imperator (Bloch, 1787)". Nonindigenous Aquatic Species. USGS. Retrieved 28 February 2021.
  5. ^ Atlas of Exotic Fishes in the Mediterranean Sea (Pomacanthus imperator). 2nd Edition. 2021. 366p. CIESM Publishers, Paris, Monaco.https://ciesm.org/atlas/fishes_2nd_edition/Pomacanthus_imperator.pdf
  6. doi:10.3391/ai.2011.6.S1.002
    .
  7. ^ Dianne J. Bray. "Pomacanthus imperator". Fishes of Australia. Museums Victoria. Retrieved 1 March 2021.
  8. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Pomacanthus". Catalog of Fishes. California Academy of Sciences. Retrieved 28 February 2021.
  9. ^ Christopher Scharpf & Kenneth J. Lazara (21 July 2020). "Order ACANTHURIFORMES (part 1): Families LOBOTIDAE, POMACANTHIDAE, DREPANEIDAE and CHAETODONTIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 28 February 2021.

External links

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