Chaetodon baronessa, Eastern triangular butterflyfish : fisheries, aquarium

Chaetodon baronessa Cuvier, 1829

Eastern triangular butterflyfish
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Chaetodon baronessa   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Acanthuriformes (Surgeonfishes) > Chaetodontidae (Butterflyfishes)
Etymology: Chaetodon: Greek, chaite = hair + Greek, odous = teeth (Ref. 45335).
More on author: Cuvier.

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

Marine; reef-associated; non-migratory (Ref. 52884); depth range 5 - 20 m (Ref. 48636). Tropical; 36°N - 26°S, 96°E - 168°W

Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: Cocos-Keeling Islands in the eastern Indian Ocean and Indonesia to Fiji and Tonga (Ref. 53797), north to southern Japan, south to New Caledonia and New South Wales, Australia. Replaced by Chaetodon triangulum in the Indian Ocean (Ref. 37816).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 48636)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 23 - 26; Anal spines: 3; Anal soft rays: 20 - 22.
Body shape (shape guide): short and / or deep; Cross section: compressed.

Biology     Glossary (e.g. epibenthic)

Adults occur in lagoon and seaward reefs. They feed exclusively on the polyps of the tubular Acropora corals. They swim in pairs and are territorial. Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing (Ref. 205). Monogamous mating is observed as both obligate and social (Ref. 52884).

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 07 October 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Spawning aggregations
Eggs
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Larvae
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Distribution
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BRUVS - Videos
Anatomy
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Physiology
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Nutrients
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Swimming type
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Stamps, coins, misc.
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Taxonomy
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References
References

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Special reports

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | DORIS | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | National databases | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.02344 (0.01258 - 0.04370), b=3.00 (2.84 - 3.16), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level
(Ref. 69278) 		3.3   ±0.61 se; based on food items.
Generation time 1.1 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience
(Ref. 120179) 		High, minimum population doubling time less than 15 months (K=0.9;).
Fishing Vulnerability
(Ref. 59153) 		Low vulnerability (14 of 100). 🛈
Price category
(Ref. 80766) 		Unknown.
Nutrients
(Ref. 124155) 		Calcium = 103 [54, 157] mg/100g; Iron = 0.809 [0.485, 1.318] mg/100g; Protein = 18.6 [17.5, 19.7] %; Omega3 = 0.113 [0.069, 0.180] g/100g; Selenium = 27.9 [15.7, 52.4] μg/100g; VitaminA = 55.9 [17.1, 181.4] μg/100g; Zinc = 1.48 [1.00, 2.13] mg/100g (wet weight);