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Diagnostic Description

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Description: Body is white with two broad oblique dark-brown bands running across the body from the dorsal fin to the abdomen and anal fin. A short brown band runs from the top of the head to the eye. The soft portion of the dorsal fin and the caudal fin are yellow (Ref. 2334). Snout length 3.0-3.7 in HL; body depth 1.2-1.5 in SL (Ref. 90102).
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Recorder
Rodolfo B. Reyes
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Life Cycle

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Form pairs during breeding (Ref. 205).
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Susan M. Luna
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Morphology

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Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 23 - 25; Analspines: 3; Analsoft rays: 17 - 19
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Rodolfo B. Reyes
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Trophic Strategy

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Occurs inshore (Ref. 75154).
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Pascualita Sa-a
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Biology

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Occur primarily along outer reef slopes, in current channels. Juveniles in aggregations around isolated patch reefs, adults in large schools well above the bottom (Ref. 9710). In Indonesia, adults most common in depth 40-50 m, reported to 200 m (Ref. 48636). Benthopelagic (Ref. 58302). Feed on plankton. Juveniles may act as cleaners (Ref. 9710); also observed in adults (Ref. 48636). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).
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Rainer Froese
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Importance

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fisheries: of no interest; aquarium: commercial
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Rainer Froese
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Schooling bannerfish

provided by wikipedia EN

The schooling bannerfish (Heniochus diphreutes), also known as the false moorish idol, is a marine ray-finned fish, a butterflyfish from the family Chaetodontidae. It is native to the Indo-Pacific area.

Description

Schooling on a wreck, Taba, Egypt.

The schooling bannerfish is a small fish that can reach a maximum length of 18–21 cm.[2][3]

Its body is compressed laterally, and the first rays of its dorsal fin stretch in a long white filament. Its background color is white with two large black diagonal bands. Beyond the second black stripe, the dorsal, caudal fins and pectoral fins are yellow. The head is white, the eyes are black and linked together by a black to gray band. The short snout, spotted with black to gray, has a small terminal, extensible mouth.

A comparison of three similar species: moorish idol (left), schooling bannerfish (top), and pennant coralfish (bottom)

Distribution and habitat

The schooling bannerfish is widespread throughout the tropical, subtropical and temperate waters of the Indo-Pacific from the eastern coast of Africa, Red Sea included, to Polynesia and Hawaii and from south Japan to Kermadec Islands (New Zealand).[1][2]

The schooling bannerfish prefers external reef slopes and channels. It has a large depth range and is usually observed at 5–30 m depth, but may reach 210 meters deep in some localities.[2][4]

Ecology

As is indicated by its common name, the schooling bannerfish lives in large groups. It feeds on zooplankton in the open water, and juveniles may act as cleaner fish,[2][3][5] and this has also been seen in adults. This oviparous species forms pairs to breed.[6] They have been observed cleaning parasites off the short sunfish (Mola ramsayi) off the Maldives.[7]

Conservation status

In some geographic areas, the schooling bannerfish is harvested for the aquarium trade and is commonly sold as a cheaper alternative to the Moorish idol. However, there do not appear to be any major current threats to this species, and it is listed as Least Concern by the IUCN.[1]

References

  1. ^ a b c Rocha, L.A.; Pyle, R.; Myers, R.F.; Craig, M.T.; Pratchett, M.; Carpenter, K.E. (2010). "Heniochus diphreutes". IUCN Red List of Threatened Species. 2010: e.T165683A6090332. doi:10.2305/IUCN.UK.2010-4.RLTS.T165683A6090332.en. Retrieved 20 November 2021.
  2. ^ a b c d Lieske & Myers,Coral reef fishes,Princeton University Press, 2009, ISBN 9780691089959
  3. ^ a b Kuiter, R.H. and T. Tonozuka, 2001. Pictorial guide to Indonesian reef fishes. Part 2. Fusiliers - Dragonets, Caesionidae - Callionymidae. Zoonetics, Australia. 304-622 p.
  4. ^ Allen, G.R. and M.V. Erdmann, 2012. Reef fishes of the East Indies. Perth, Australia: University of Hawai'i Press, Volumes I-III. Tropical Reef Research.
  5. ^ Rudie Kuiter, “Chaetodontidae & Microcanthidae”, Aquatic Photographics, 2004, ISBN 0953909735
  6. ^ Froese, Rainer; Pauly, Daniel (eds.) (2018). "Heniochus diphruetes" in FishBase. December 2018 version.
  7. ^ Bray, D.J. (2018). "Heniochus diphreutes". Fishes of Australia. Museums Victoria. Retrieved 25 November 2020.

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Schooling bannerfish: Brief Summary

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The schooling bannerfish (Heniochus diphreutes), also known as the false moorish idol, is a marine ray-finned fish, a butterflyfish from the family Chaetodontidae. It is native to the Indo-Pacific area.

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Habitat

provided by World Register of Marine Species
Known from seamounts and knolls

Reference

Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.

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