Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335). More on author: Forsskål.

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. 115185)

Least Concern (LC)

CITES (Ref. 115941)

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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Age/Size
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Summary page | Point data | Common names | Photos

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.7 - 29.2, mean 27.3 (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 (0.01004 - 0.01578), b=2.97 (2.92 - 3.02), 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. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.22, tm=1-2).

Prior r = 0.66, 2 SD range = 0.38 - 1.14, log(r) = -0.42, SD log(r) = 0.28, Based on: 3 K, 2 tgen, 2 tmax, 2 Fec records

Vulnerability (Ref. 59153): Low to moderate vulnerability (32 of 100) .

Price category (Ref. 80766): High.

Siganus rivulatus Forsskål & Niebuhr, 1775