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Teleostei (teleosts) > Acanthuriformes (Surgeonfishes) > Chaetodontidae (Butterflyfishes)
Eponymy: Colonel Dr Atmaram Sadashiv Grandin Jayakar (1844–1911) was an Indian surgeon and entomologist. [...] (Ref. 128868), visit book page.
More on author: Norman.

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

Marine; reef-associated; depth range 33 - 280 m (Ref. 11441). Tropical

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Western Indian Ocean: Red Sea to the west coast of India.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 11441)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 22 - 24; Anal spines: 3; Anal soft rays: 17 - 18.

Oviparous (Ref. 205). Form pairs during breeding (Ref. 205). Maximum depth reported taken from Ref. 9773.

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

Form pairs during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Burgess, W.E., 1978. Butterflyfishes of the world. A monograph of the Family Chaetodontidae. T.F.H. Publications, Neptune City, New Jersey. (Ref. 4855)

IUCN Red List Status (Ref. 130435: Version 2024-2)

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 |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 18.3 - 25.8, mean 22.8 °C (based on 88 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): 3.9 ±0.40 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Price category (Ref. 80766): Unknown.

Roa jayakari (Norman, 1939)