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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.
Environment: milieu / climate zone / profondeur / distribution range
Écologie
marin récifal; profondeur 37 - 162 m (Ref. 123118). Tropical
Western Pacific: Japan and the Philippines.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 109 cm SL mâle / non sexé; (Ref. 127431)
Épines dorsales (Total) : 10 - 11; Rayons mous dorsaux (Total) : 21 - 22; Épines anales: 3; Rayons mous anaux: 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.
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).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Réf.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01097 - 0.04568), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 4.4 ±0.5 se; based on size and trophs of closest relatives
Résilience (Réf.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
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