Diagnostic Description
provided by Fishbase
Description: Juveniles are bluish black with concentric white circles. Adults blue with close-set horizontal yellow stripes on the sides and the adjoining dorsal and anal fins. Snout white; eye enclosed in a black vertical bar with blue edge; pectoral fin base area also black. Transformation to the adult color pattern occurs over the size range 8 - 12 cm (Ref. 1602). Body depth 1.6-1.8 in SL. Scales longitudinal series about 90 (Ref. 90102).
Diseases and Parasites
provided by Fishbase
Cauliflower Disease. Viral diseases
Morphology
provided by Fishbase
Dorsal spines (total): 13 - 14; Dorsal soft rays (total): 17 - 21; Analspines: 3; Analsoft rays: 18 - 21
Trophic Strategy
provided by Fishbase
Juveniles are encountered under ledges, or in holes of outer lagoon patch reefs or semi-protected areas of exposed channels and outer reef flats. Subadults move to reef front holes and surge channels. Large adults inhabit ledges and caves in areas of rich coral growth on clear lagoon, channel, or seaward reefs. Feed on sponges, algae and other encrusting organisms (Refs. 6113, 127989). Also on tunicates. Lives individually or may form pairs (Also Ref. 127989). Young and adults may clean much larger fishes such as sunfish (Ref. 48636).
- Recorder
- Drina Sta. Iglesia
Biology
provided by Fishbase
Juveniles are encountered under ledges, or in holes of outer lagoon patch reefs or semi-protected areas of exposed channels and outer reef flats. Subadults move to reef front holes and surge channels. Large adults inhabit ledges and caves in areas of rich coral growth on clear lagoon, channel, or seaward reefs (Ref. 6113). Benthopelagic (Ref. 58302). Feed on sponges and other encrusting organisms (Ref. 6113); also on tunicates. Form pairs. Young and adults may clean much larger fishes such as sunfish (Ref. 48636). Frequently exported through the aquarium trade. Juveniles are distinguished by a white dorsal-fin margin (Ref. 48391).
Importance
provided by Fishbase
fisheries: minor commercial; aquarium: commercial; price category: high; price reliability: very questionable: based on ex-vessel price for species in this family
分布
provided by The Fish Database of Taiwan
分布於印度-太平洋區，自紅海及東非洲到夏威夷、萊恩及土木土群島，北到日本南部及小笠原群島，南至澳洲及新加勒多尼亞，包括密克羅尼西亞。台灣東部及南部的岩礁或珊湖礁海域皆可見其蹤跡。
利用
provided by The Fish Database of Taiwan
一般以潛水方式捕捉。為觀賞魚類，無食用經濟價值。可存活於水族箱內。
描述
provided by The Fish Database of Taiwan
體略高而呈卵圓形；背部輪廓略突出，頭背於眼上方平直。吻鈍而小。眶前骨寬突，不游離；前鰓蓋骨後緣及下緣具弱鋸齒，具一長棘；鰓蓋骨後緣平滑。體被中型圓鱗，具數個副鱗；頭具絨毛狀鱗，頰部與奇鰭具小鱗。背鰭硬棘XIV，軟條20-22；臀鰭硬棘III，軟條20；背鰭與臀鰭軟條部後端截平；腹鰭尖，第一軟條延長，幾達臀鰭；尾鰭鈍圓形。幼魚體一致為深藍色，體具若干白弧狀紋，並與尾柄前之白環形成同心圓，隨著成長白弧紋愈多；中型魚體逐漸偏黃褐色，弧紋亦逐漸成黃縱紋；成魚體呈黃褐色至暗褐色，體側具10-25條由鰓蓋緣微斜上而延伸至背鰭及臀鰭之黃縱紋；眼帶起於眶間至前鰓蓋下緣；胸鰭基部延伸至腹部另具一長形藍黑斑塊。
棲地
provided by The Fish Database of Taiwan
棲息於面海的珊瑚礁區或岩礁、水道區或清澈的潟湖等。成魚會發出「咯咯」聲以嚇退來者，具有領域性，會攻擊其它同類或不同類魚。幼魚則在洞穴附近活動。以海綿、附著生物和藻類為食。
Emperor angelfish
provided by wikipedia EN
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
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.[3] The dorsal fin has a white margin and the caudal fin is transparent.[4] The adults are striped with blue and yellow horizontal stripes, a light blue face with a dark blue mask over the eyes and a yellow caudal fin. There is a blackish band above the pectoral fins, the top of which is at the level of the upper orbit. The front margin of this band is bright blue and the rear margin is a thin yellow line.[3] The anal fin has a dark blue background with lighter blue horizontal stripes.[4] The dorsal fin has 13–14 spines and 17–21 soft rays while the 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 Tuamotu Islands and the Line Islands. It extends north to the Kansai region and to the southern regions of Japan and south to the Great Barrier Reef of Australia, New Caledonia and the Austral Islands in French Polynesia. Vagrants have been recorded from Hawaii.[1] It has been recorded at several sites off the coast of Florida and off Puerto Rico,[4] and since 2009 as a recent introduction to the eastern 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).[1] The adults are found in areas where there is a rich growth of corals on clear lagoon, channel, or seaward reefs. Here they are normally observed underneath ledges and within caves. The subadults are frequently recorded in cavities in reefs and along surge channels on seaward reefs. The juveniles frequently shelter below ledges, in reef cavities and in relatively sheltered areas in channels and over outer reef flats.[7] It’s diet comprises sponges and other encrusting organisms, as well as 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 German physician and naturalist Marcus Elieser Bloch (1723–1799) with 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 Sea Life Bangkok Ocean World, 2007
Adult Emperor angelfish,2012
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
References
-
^ a b c d e Pyle, R.; Rocha, L.A.; Craig, M.T. (2010). "Pomacanthus imperator". IUCN Red List of Threatened Species. 2010: e.T165862A6151184. doi:10.2305/IUCN.UK.2010-4.RLTS.T165862A6151184.en. Retrieved 19 November 2021.
-
^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2019). "Pomacanthus imperator" in FishBase. December 2019 version.
-
^ a b "Pomacanthus imperator". Saltcorner!. Bob Goemans. 2012. Retrieved 1 March 2021.
-
^ a b c d "Pomacanthus imperator (Bloch, 1787)". Nonindigenous Aquatic Species. USGS. Retrieved 28 February 2021.
-
^ 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
-
^ Daniel Golani; Oren Sonin; Dor Edelist (2011). "Second records of the Lessepsian fish migrants Priacanthus sagittarius and Platax teira and distribution extension of Tylerius spinosissimus in the Mediterranean". Aquatic Invasions. 6 (1, supplement): s7–s11 (specific ref page s9). doi:10.3391/ai.2011.6.S1.002.
-
^ Dianne J. Bray. "Pomacanthus imperator". Fishes of Australia. Museums Victoria. Retrieved 1 March 2021.
-
^ 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.
-
^ 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.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Emperor angelfish: Brief Summary
provided by wikipedia EN
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. It is a favorite of photographers, artists, and aquarists because of its unique, brilliant pattern of coloration.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Description
provided by World Register of Marine Species
Juveniles are encountered under ledges, or in holes of outer lagoon patch reefs or semi-protected areas of exposed channels and outer reef flats. Subadults move to reef front holes and surge channels. Large adults inhabit ledges and caves in areas of rich coral growth on clear lagoon, channel, or seaward reefs. Feeds on sponges and other encrusting organisms (Ref. 6113).
Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
.jpg)
.jpg)
,.jpg)
_juvenile_Timor.jpg)
_juvenile.jpg)
