Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Acanthuriformes (Surgeonfishes) > Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335).
More on authors: Forsskål & Niebuhr.

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

Marine; brackish; reef-associated; depth range 1 - 30 m (Ref. 50672). Subtropical; 32°N - 36°S, 25°E - 58°E

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

Western Indian Ocean: several localities in East Africa, and from the Red Sea to the eastern Mediterranean via the Suez Canal.

Length at first maturity / Size / Weight / Age

Maturity: L_m 13.7 range ? - ? cm
Max length : 27.0 cm TL male/unsexed; (Ref. 50671); common length : 20.0 cm TL male/unsexed; (Ref. 30573)

Short description Morphology | Morphometrics

Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 23. Upper body gray, green or brownish, silvery below; iris iridescent silver or golden. Body color patterns extend to the fins. Spines slender, pungent and venomous. Preopercular angle 88°-96°; cheeks scaled; midline of thorax, isthmus and midline of belly without scales. Frightened fish become mottled or with 6 diagonal zones across side. Tip of broad-based flap of anterior nostril reaching at least halfway to orifice of posterior nostril.

Inhabits shallow waters and generally in schools of 50 to several hundred individuals; prefers protected areas. Feeds by grazing on algae.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | 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. 125652)

Least Concern (LC) ; Date assessed: 04 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Venomous (Ref. 4537)

Human uses

Fisheries: minor commercial; aquaculture: commercial

FAO - Aquaculture: production; ; Publication: search | FishSource | Sea Around Us

More information

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Common names
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Predators
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Fecundity
Eggs
Egg development

Age/Size
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Length-weight
Length-length
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Morphometrics
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Larvae
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29.2, mean 27.3 °C (based on 573 cells).

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01259 (0.01016 - 0.01561), b=2.98 (2.93 - 3.03), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.0 ±0.0 se; based on diet studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.22, tm=1-2).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (36 of 100) .

Climate Vulnerability (Ref. 125649): (0 of 100) .

Price category (Ref. 80766): High.

Nutrients (Ref. 124155): Calcium = 28.2 [10.0, 80.3] mg/100g ; Iron = 1.16 [0.45, 2.97] mg/100g ; Protein = 18.3 [17.1, 19.5] % ; Omega3 = 0.417 [0.164, 1.109] g/100g ; Selenium = 7.6 [2.3, 22.7] μg/100g ; VitaminA = 43.5 [8.5, 213.9] μg/100g ; Zinc = 1.59 [0.64, 3.68] mg/100g (wet weight); based on nutrient studies.

Siganus rivulatus Forsskål & Niebuhr, 1775