Roa haraguchiae, White-spine butterfyfsh

Roa haraguchiae Uejo, Senou & Motomura, 2020

White-spine butterfyfsh
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Image of Roa haraguchiae (White-spine butterfyfsh)
No image available for this species;
drawing shows typical species in Chaetodontidae.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Chaetodontidae (Butterflyfishes)
Etymology: haraguchiae: Named for Mrs. Yuriko Haraguchi, who supported the authors' ichthyological research and fish collection management at the Kagoshima University Museum as a volunteer over 15 years.
Eponymy: Mrs Yuriko Haraguchi was a volunteer at the Kagoshima University Museum. She was honoured because she “…has kindly supported our ichthyological research and fish collection management at the Kagoshima University Museum as a volunteer.” (Ref. 128868), visit book page.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien rifbewoner; diepte 37 - 162 m (Ref. 123118). Tropical

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Western Pacific: Japan and the Philippines.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 109 cm SL mannelijk / geslacht onbekend; (Ref. 127431)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 10 - 11; Dorsale zachte stralen (totaal) : 21 - 22; Anale stekels: 3; Anale zachte stralen: 16 - 17. This species is distinguished by the following characters: non-pored lateral-line scales 5–8; scale rows above lateral line 11-12 and below lateral line 22-28; scale rows under longer axis of black blotch on dorsal-fn soft-rayed portion 10-12; head depth 46.2-54.9% (mean 51.6%) of SL; postorbital short, length 12.1-14.1% (13.1%) of SL; long snout, its length 33.2-38.7% (35.6%) of HL; short pectoral-fin, its length 27.9-32.4% (29.5%) of SL; anterior margin of second body band does not reach anteroventrally to pelvic-fin spine base; pelvic-fin spine and first pelvic-fin soft ray is white and remaining soft rays and membranes entirely black; membranes associated with first and second dorsal-fin spines are blackish distally; second and third body bands without blackish edges (Ref. 123118).
Cross section: compressed.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Taken in by bottom trawls, thus indicating a sandy bottom habitat. Also, photos taken of this species were from rocky bottom areas in fairly deep water and were observed occurring in pairs (Ref. 123118).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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Uejo, T., H. Senou and H. Motomura, 2020. Roa haraguchiae, a new species of butterflyfish (Teleostei: Perciformes: Chaetodontidae) from Japan and the Philippines. Ichthyological Research 67(3):408-415. (Ref. 123118)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.02239 (0.01112 - 0.04506), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
4.4   ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen
(Ref. 120179)
Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij
(Ref. 59153)
High to very high vulnerability (68 of 100). 🛈