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Blue Backed Angelfish

Centropyge venusta (Yasuda & Tominaga 1969)

Trophic Strategy

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In caves or other projections (Ref. 9137). Inhabits steep outer reef slopes (Ref. 9710); in ledges and caves (Ref. 48391) or other projections (Ref. 9137) . Shy and not easily approached at close range (Ref. 4537). Usually observed singly, almost always upside down in reef caves (Ref. 47838); but also forms pairs or small groups (Ref. 48391). Natural diet unknown (Ref. 48391).
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Recorder
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Morphology

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Dorsal spines (total): 14; Dorsal soft rays (total): 16; Analspines: 3; Analsoft rays: 15
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Diagnostic Description

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Description: Head and body dorsally blue, ventral yellow with triangular extension to behind head. Body depth 1.9-2.2 in SL. Scales longitudinal series 46-48 (Ref. 90102).
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Biology

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Inhabits steep outer reef slopes (Ref. 9710); in ledges and caves (Ref. 48391). A shy species, not easily approached at close range (Ref. 4537). Usually observed singly, almost always upside down in reef caves (Ref. 47838); also forms pairs or small groups (Ref. 48391). Natural diet unknown (Ref. 48391). Sometimes forms hybrids with Centropyge multifasciata (Ref. 48391). Occasionally exported through the aquarium trade.
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Importance

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aquarium: commercial
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分布

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分布於西太平洋區,由日本至菲律賓北部。台灣產於綠島及蘭嶼等水域。
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利用

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偶以潛水方式捕捉。為觀賞魚類,無食用經濟價值。罕見之種。
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描述

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體卵圓形;背部輪廓略突出。吻鈍而小。眶前骨之前緣中部具缺刻,後緣游離並且具鋸齒;主鰓蓋骨具鱗9列。上下頜相等,齒細長,約為眼徑1/3-1/2。背鰭硬棘XIV,軟條17-18;臀鰭硬棘III,軟條16-17;背鰭與臀鰭軟條部後端圓形;腹鰭尖,第一軟條延長至臀鰭第III棘;尾鰭圓形。體及頭部呈鮮黃色,體側後上方由背鰭第II-III硬棘下方延伸至尾柄處具一大塊黑褐色斑駁,眼後至背鰭起點間亦具一塊三角形之黑褐色斑塊,每一鱗片具淡藍色斑點。背鰭及臀鰭暗黃色至黑褐色,往後端漸暗;腹鰭黃色;各鰭均具藍緣;尾鰭黑褐色,另具藍斑。
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棲地

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棲息於外礁斜坡處,棲息深度在15-35公尺左右。多半單獨活動或成小群活動。生性害羞,躲躲藏藏,不易看見。主要以海藻、附著生物及被囊動物為食。
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Purpurmasken-Zwergkaiserfisch ( German )

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Der Purpurmasken-Zwergkaiserfisch (Centropyge venusta) ist ein kleiner Meeresfisch aus der Familie der Kaiserfische (Pomacanthidae). Die Art kommt im westlichen Pazifik von den nördlichen Philippinen über Taiwan bis zum südlichen Japan vor.[1]

Merkmale

Der Purpurmasken-Zwergkaiserfisch hat den typischen hochrückigen und seitlich stark abgeflachten Körper der meisten Kaiserfische und erreicht eine Maximallänge von 12 cm. An der höchsten Stelle beträgt die Körperhöhe zwei Drittel der Standardlänge, die Kopflänge liegt bei einem Drittel der Standardlänge. In beiden Kiefern sind die nadelartigen Zähne in mehreren Reihen angeordnet, wobei die Zähne der inneren Reihen kleiner sind als die der äußeren. Der Gaumen ist zahnlos. Der Augenabstand ist gleich dem Augendurchmesser. Die Schwanzflosse und die weichstrahligen Abschnitte von Rücken- und Afterflosse sind abgerundet.[2]

Der Purpurmasken-Zwergkaiserfisch ist kontrastreich zweifarbig gefärbt, mit einer leuchtend gelben Vorder- und Bauchseite und einem tiefblauen Rücken und Hinterkörper, wobei die Grenze zwischen den Farbzonen diagonal von den vorderen Rückenflossenstrahlen bis zur Mitte der Afterflosse verläuft. Eine dreieckige, dunkelblaue Zone liegt im vorderen Rückenbereich und verläuft von der Vorderkante der Rückenflosse bis zu den Augen und nach unten bis zum Brustflossenansatz. Die weichstrahligen Abschnitte von Rücken- und Afterflosse und die Schwanzflosse sind dunkelblau mit hellblauen Streifen. Die Brustflossen sind transparent gelblich, die Bauchflossen gelb mit einem hellblauen Vorderrand.[2]

Lebensraum und Lebensweise

Der Purpurmasken-Zwergkaiserfisch lebt in Korallenriffen in Tiefen von 10 bis 40 Metern. Er kommt an Außenriffhängen vor, ist scheu und hält sich oft sehr versteckt unter Vorsprüngen oder in Höhlen auf, wo er in Deckennähe mit nach oben gerichteten Bauch schwimmt. Die meisten Exemplare wurden bisher einzeln gesehen, seltener Paare oder kleine Gruppen. Die sonstige Lebensweise und die Ernährung wurden bisher nicht erforscht.[1]

Systematik

Der Purpurmasken-Zwergkaiserfisch wurde 1969 von den japanischen Ichthyologen Fujio Yasuda und Yoshiaki Tominaga als Holacanthus venustus beschrieben.[2] Später wurde er der Gattung Centropyge zugeordnet. Er hybridisiert jedoch hin und wieder mit dem Zebra-Zwergkaiserfisch (Paracentropyge multifasciatus), der einzigen Art der Gattung Paracentropyge, und auch phylogenetische Analysen deuten darauf hin, dass der Purpurmasken-Zwergkaiserfisch und der Cook-Zwergkaiserfisch (Centropyge boylei) näher mit dem Zebra-Zwergkaiserfisch verwandt sind als mit den anderen Arten der paraphyletischen Gattung Centropyge. Einige Wissenschaftler plädieren deshalb dafür, beide Arten in die Gattung Paracentropyge zu überführen.[3]

Belege

  1. a b Purpurmasken-Zwergkaiserfisch auf Fishbase.org (englisch)
  2. a b c Fujio Yasuda und Yoshiaki Tominaga (1969): A new pomacanthine fish, Holacanthus venustus, from the Pacific coast of Japan, with notes on the young of H. sexstriatus and H. septentrionalis. Japanese Journal of Ichthyology v. 16 (Nr. 4): S. 143–151.
  3. Michelle Gaither, Jennifer K. Schultz, David R. Bellwood, Richard L. Pyle, Joseph D. DiBattista, Luiz A. Rocha, Brian W. Bowen: Evolution of pygmy angelfishes: recent divergences, introgression, and the usefulness of color in taxonomy. Molecular Phylogenetics and Evolution, Februar 2014, doi:10.1016/j.ympev.2014.01.017

Weblinks

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Purpurmasken-Zwergkaiserfisch: Brief Summary ( German )

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Der Purpurmasken-Zwergkaiserfisch (Centropyge venusta) ist ein kleiner Meeresfisch aus der Familie der Kaiserfische (Pomacanthidae). Die Art kommt im westlichen Pazifik von den nördlichen Philippinen über Taiwan bis zum südlichen Japan vor.

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Centropyge venusta

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Centropyge venusta, the purplemask angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae, It is found in the Western Pacific and is occasionally found the aquarium trade.

Description

Centropyge venusta has a blue and yellow colouration. Yellow dominates the lower front part of the body and is also found around the snout area, There is a wedge of blue on the nape separating the patches yellow. There is also an area of blue starting close to the front of the dorsal fin and covers the rear part of the body and the caudal fin. The anal and pelvic fins are yellow with blue margins.[3] The distribution of the blue and yellow colour varies in individual fishes.[4] The dorsal fin contains 14 spines and 16 soft rays while the anal fin has 3 spines and 15 soft rays. This species attains a maximum total length of 12 centimetres (4.7 in).[2]

Distribution

Centropyge venusta occurs in the western Pacific Ocean. It is found around the Ryukyu Islands and Izu Islands of southern Japan, Taiwan and northern Luzon in the Philippines.[1]

Habitat and biology

Centropyge venustais found at depths between 10 and 40 metres (33 and 131 ft).[1] It is a shy and unapproachable species of caves and overhangs, where it is typically encountered as solitary individuals oriented upside down on the roofs. It does form pairs or small groups.[2] Its diet in the wild is unknown but in captivity it requires live food.[5]

Systematics

Centropyge venusta was first formally described as Holocanthus venustus in 1969 by the Japanese ichthyologists Fujio Yasuda and Yoshiaki Tominaga with the type locality given as Izu Ōshima in Sagami Bay.[6] The specific name venusta means “beautiful”. Some authorities place this species in the subgenus Paracentropyge, which is sometimes treated as a valid genus.[7][5]

Utilisation

Centropyge venusta is rare in the aquarium trade[1] and commands high prices when it does become available.[3] It has now been bred and successfully reared in captivity.[5]

References

  1. ^ a b c d Pyle, R.; Myers, R.F. (2010). "Centropyge venusta". IUCN Red List of Threatened Species. 2010: e.T165900A6160869. doi:10.2305/IUCN.UK.2010-4.RLTS.T165900A6160869.en. Retrieved 20 November 2021.
  2. ^ a b c Froese, Rainer; Pauly, Daniel (eds.) (2019). "Centropyge venusta" in FishBase. December 2019 version.
  3. ^ a b "Centropyge venusta". Saltcorner!. Bob Goemans. 2012. Retrieved 2 February 2021.
  4. ^ Lemon Tyk (18 November 2014). "Variations and forms of Paracentropyge venusta". reef builders.com. Retrieved 2 February 2021.
  5. ^ a b c Karen Brittain (10 April 2014). "Captive breeding of purplemask angelfish". reef2rainforest.com. Retrieved 2 February 2021.
  6. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Centropyge". Catalog of Fishes. California Academy of Sciences. Retrieved 2 February 2021.
  7. ^ 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 2 February 2021.
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Centropyge venusta: Brief Summary

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Centropyge venusta, the purplemask angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae, It is found in the Western Pacific and is occasionally found the aquarium trade.

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Centropyge venusta ( Basque )

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Centropyge venusta Centropyge generoko animalia da. Arrainen barruko Pomacanthidae familian sailkatzen da.

Banaketa

Erreferentziak

  1. Froese, Rainer & Pauly, Daniel ed. (2006), Centropyge venusta FishBase webgunean. 2006ko apirilaren bertsioa.

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Centropyge venusta: Brief Summary ( Basque )

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Centropyge venusta Centropyge generoko animalia da. Arrainen barruko Pomacanthidae familian sailkatzen da.

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Centropyge venusta ( Dutch; Flemish )

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Vissen

Centropyge venusta is een straalvinnige vissensoort uit de familie van engel- of keizersvissen (Pomacanthidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1969 door Yasuda & Tominaga.

Bronnen, noten en/of referenties
  1. (en) Centropyge venusta. FishBase. Ed. Ranier Froese and Daniel Pauly. 10 2011 version. N.p.: FishBase, 2011.
Geplaatst op:
22-10-2011
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen. Beginnetje
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Centropyge venusta ( Vietnamese )

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Centropyge venusta (danh pháp đồng nghĩa: Paracentropyge venusta[1]), thường được gọi là cá thần tiên mặt tím, là một loài cá biển thuộc chi Centropyge trong họ Cá bướm gai. Loài này được mô tả lần đầu tiên vào năm 1969.

Phân bố và môi trường sống

C. venusta được tìm thấy dọc theo vành đai phía tây Thái Bình Dương, trải dài từ quần đảo Ryukyuquần đảo Izu (Nhật Bản), Đài Loan ở phía bắc đến Luzon, đảo phía bắc của Philippines. Chúng sống xung quanh các rạn san hô và sườn đá dốc ở độ sâu từ 10 tới 40 m[1][2].

Mô tả

C. venusta trưởng thành có thể dài khoảng 12 cm. Phần đầu và thân trước của C. venusta có màu vàng tươi, trong khi phần thân sau có màu xanh tím. Ngoài ra, đỉnh đầu của C. venusta có màu đốm hình tam giác màu xanh tím như phần thân sau. Vây lưng, vây hậu môn và vây đuôi của loài này có màu xanh thẫm; vây hậu môn đôi khi có màu vàng sẫm.

Số ngạnh ở vây lưng: 14; Số vây tia mềm ở vây lưng: 16; Số ngạnh ở vây hậu môn: 3; Số vây tia mềm ở vây hậu môn: 15[2].

C. venusta có thể sống đơn lẻ, thành nhóm nhỏ hoặc theo cặp[1][2]. Loài này khá nhút nhát, thường lẩn trốn trong các vách đá, không dễ tiếp cận ở khoảng cách gần[2]. Thức ăn chủ yếu của C. venusta có lẽ là các loại rong tảo. C. venusta thường lai giống với loài Paracentropyge multifasciata[2].

C. venusta cũng được nuôi làm cảnh trong các bể cá, tương tự như các loài cá thần tiên khác[1][2].

Liên kết ngoài

Chú thích

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Centropyge venusta: Brief Summary ( Vietnamese )

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Centropyge venusta (danh pháp đồng nghĩa: Paracentropyge venusta), thường được gọi là cá thần tiên mặt tím, là một loài cá biển thuộc chi Centropyge trong họ Cá bướm gai. Loài này được mô tả lần đầu tiên vào năm 1969.

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仙女刺尻魚 ( Chinese )

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二名法 Centropyge venusta
Yasuda & Tominaga,1969

仙女刺尻魚,又名愛神棘蝶魚,俗名黃肚新娘,為輻鰭魚綱鱸形目鱸亞目蓋刺魚科的其中一個

分布

本魚分布於西太平洋,從日本至北菲律賓之間海域。

深度

水深3~30公尺。

特徵

本魚體卵圓形;背部輪廓略突出。吻鈍而小。眶前骨之前緣中部具缺刻,後緣游離並且具鋸齒;主鰓蓋骨具鱗9列。上下頜相等,齒細長,約為眼徑1/3~1/2。體色以黃色為底,在頭部自頭頂至胸鰭基部上方有塊三角形藍色區域,其包括了眼睛的上半部。而身體的上半部自第二硬棘後至尾鰭末端為藍色。除胸鰭外,各鰭皆有淡藍色外緣,且各鰭的藍色部份上均有一些淡藍色的不規則斑點。其黃色區域會隨個體不同而有差異。背鰭硬棘16枚,軟條17~18枚;臀鰭硬棘3枚,軟條16~17枚;背鰭與臀鰭軟條部後端圓形;腹鰭尖,第一軟條延長至臀鰭第三棘;尾鰭圓形。體長可達11公分。

生態

本魚喜棲息在珊瑚礁的崖穴中,屬雜食性,以附著生物、藻類為食。

經濟利用

為色彩鮮豔的觀賞魚類,無食用價值。

参考文献

台灣魚類資料庫

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仙女刺尻魚: Brief Summary ( Chinese )

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仙女刺尻魚,又名愛神棘蝶魚,俗名黃肚新娘,為輻鰭魚綱鱸形目鱸亞目蓋刺魚科的其中一個

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