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Siganus argenteus (Quoy & Gaimard, 1825)

Streamlined spinefoot
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Siganus argenteus   AquaMaps   Data sources: GBIF OBIS
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Siganus argenteus
Picture by Randall, J.E.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Perciformes (Perch-likes) > Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335).  More on authors: Quoy & Gaimard.

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

; marina revassocierade; djupintervall 0 - 40 m (Ref. 9813), usually 1 - 30 m (Ref. 27115).   Tropical; 25°C - 29°C (Ref. 27115); 30°N - 30°S, 32°E - 128°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-Pacific: Red Sea and East Africa to Pitcairn. Often the only siganid present on remote islands like Pitcairn, Rapa and Line.

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 20 - ? cm
Max length : 40.0 cm TL hane/ej könsbestämd; (Ref. 9813); common length : 25.0 cm TL hane/ej könsbestämd; (Ref. 9813)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 13; Mjukstrålar i ryggfenan (totalt): 10; Taggstrålar i analfenan 7; Mjukstrålar i analfenan: 9; Ryggkotor: 13. This species is distinguished by the following characters: juveniles and adults with body oval and compressed, slender, fusiform, greatest body depth 2.4-3 in SL; anterior nostril with a long flap reaching to or past posterior nostril; last dorsal-fin spine very short, 2.6-3.5 times in longest dorsal-fin spine; last anal-fin spine shortest, 2.1-3.1 times in longest (second or third) anal-fin spine; caudal fin deeply forked. Colour of body blue or greyish above, silvery below; variations in markings (spots, curved lines); head and trunk usually covered with small yellow spots, bars, and commas, much larger than interspaces and quarter to 1/2 size of pupil; spots usually joining to form horizontal wavy lines, particularly on lower sides; yellow pectoral-fin axil, usually yellow stripes along base of dorsal fin and a dark brown bar immediately posterior to the upper opercular margin; colours fade rapidly at death so that head and trunk may be solid brown (Ref. 9813, 90102).

Biologi     Ordlista (t.ex. epibenthic)

Inhabits coastal and inner reef slopes and lagoons. Usually occurs in large schools that swim fast and well above the substrate, occasionally all diving down to the bottom to feed (Ref. 48637). Juveniles and adults occur in small schools (2-100) around coral reefs, typically in surge zone at reef edge. Juveniles live near the surface in dense aggregations up to several km offshore, migrating to reef flats just prior to metamorphosis. Feeds on algae (Ref. 30573). Juveniles and adults not frequently found in markets; but prejuveniles form a brief but important fishery when migrating on to the reef flat, e.g. combined catch (with Siganus spinus of 16 tonnes in one season in Guam. Prejuveniles eaten fresh, pickled in brine or made into fish paste (Ref. 9813). Consumed as food although it is known to be occasionally poisonous (Ref. 4537). Used in Chinese medicine (Ref. 12166).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Spawn in group (Ref. 240).

Main reference Upload your references | referenser | Koordinator : Woodland, David J. | Medarbetare

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. 120744)

  Least Concern (LC) ; Date assessed: 10 March 2015

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 4537)





Human uses

Fiskeri: kommersiell; Akvarium: Kommersiell
FAO(Publication : search) | FishSource | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.6 - 29, mean 27.8 (based on 1374 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.01177 - 0.01859), b=2.99 (2.94 - 3.04), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisk nivå (Ref. 69278):  2.0   ±0.0 se; Based on diet studies.
Resiliens (Ref. 69278):  Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.75; tm=1).
Vulnerability (Ref. 59153):  Low vulnerability (22 of 100) .
Price category (Ref. 80766):   High.