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> Acanthuriformes (Surgeonfishes) > Chaetodontidae (Butterflyfishes)
Etymology: australis: Named for its southern hemisphere distribution; Latin australis for southern.

Environment: milieu / climate zone / depth range / distribution range Ökologie

seewasser; tiefenbereich 97 - 173 m (Ref. 76759). Tropical

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Indo-West Pacific: off the northwest coast of Australia.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 11.9 cm SL Männchen/unbestimmt; (Ref. 76759)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 11; Rückenflossenweichstrahlen (insgesamt) : 19 - 23; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 17. This species has the following characters: D XI,20; A III,17; pectoral-fin rays 14; 43 tubed lateral-line scales; body depth 73.2% in SL; light brown in color with body uniformly pale, the head somewhat darker, a dark elongated spot between 2nd and 7th soft dorsal fin rays, bordered anteriorly by a pale area of similar width, and extending onto membrane between last spine and first ray (Ref. 76759).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Kuiter, R.H., 2004. Description of a new species of butterflyfish, Roa australis, from northwestern Australia (Pisces: Perciformes: Chaetodontidae). Rec. Aust. Mus. 56:167-171. (Ref. 76759)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

nicht bedroht (LC) ; Date assessed: 24 June 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien:

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 18.7 - 27.3, mean 22.9 °C (based on 72 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [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).

Trophic level (Ref. 69278): 3.7 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Roa australis Kuiter, 2004