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Teleostei (teleosts) > Acanthuriformes (Surgeonfishes) > Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335).
More on authors: Evermann & Seale.

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

Marine; reef-associated; depth range ? - 30 m (Ref. 58652), usually 1 - 30 m (Ref. 27115). Tropical; 30°N - 30°S

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

Western Pacific: Ryukyu Islands, the Philippines, and the North West Shelf, Western Australia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 1419)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 13. Color the same as in S. vulpinus except for the blackish spot posteriorly on the upper side of the body. Caudal peduncle only slightly incised. Spines stout, pungent, and venomous. Preopercular angle 109°-119°. Variable cheek squamation; usually covered with scales, 7-10 rows deep below center of orbit, occasionally a few scattered scales present below eye; a triangular area from lower edge of orbit to angle of mouth always fully scaled. Fully scaled midline of thorax.

Inhabits rich coral areas of lagoons and outer reefs, often among staghorn corals (Ref. 90102). Small juveniles occur in schools of up to a few hundred fish, larger juveniles and adults occur in pairs. Feeds on seaweeds (Ref. 9813).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Woodland, David J. | Collaborators

Woodland, D.J., 1990. Revision of the fish family Siganidae with descriptions of two new species and comments on distribution and biology. Indo-Pac. Fish. (19):136 p. (Ref. 1419)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 12 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Venomous

Human uses

Fisheries: commercial; aquarium: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Food consumptions
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Predators

Ecology
Ecology

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Life cycle
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Fecundities
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Egg(s)
Egg developments
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Distribution
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Anatomy
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Brains
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
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Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetics
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Human related
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Stamps, coins, misc.

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References
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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 25.4 - 29.1, mean 28.2 °C (based on 1226 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01445 (0.00650 - 0.03213), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.7 ±0.30 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 (14 of 100).

Price category (Ref. 80766): High.

Nutrients (Ref. 124155): Calcium = 50.7 [24.5, 121.4] mg/100g; Iron = 0.752 [0.362, 1.794] mg/100g; Protein = 18.7 [17.1, 20.2] %; Omega3 = 0.119 [0.062, 0.237] g/100g; Selenium = 20.4 [8.0, 50.3] μg/100g; VitaminA = 40.9 [11.5, 141.9] μg/100g; Zinc = 1.4 [0.6, 3.0] mg/100g (wet weight);

Siganus unimaculatus (Evermann & Seale, 1907)