Siganus argenteus (Quoy & Gaimard, 1825)

Streamlined spinefoot

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Siganidae
Synonyms	Amphacanthus argenteus, Teuthis argentea, Amphacanthus mertensii, ... more
Common names	... more

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Woodland, D.J. 1990. (Ref. 1419)
Other references | Biblio | Coordinator : Woodland, David J. | Collaborators

Size / Weight / Age

Max length : 40.0 cm TL male/unsexed; (Ref. 9813); common length : 25.0 cm TL male/unsexed; (Ref. 9813)

Length at first maturity

L_m ?, range 20 - ? cm

Environment

Reef-associated; marine; depth range 0 - 40 m (Ref. 9813), usually 1 - 30 m (Ref. 27115)

Climate / Range

Tropical; 25°C - 29°C (Ref. 27115); 30°N - 30°S

Indo-Pacific: Red Sea and East Africa to Pitcairn. Often the only siganid present on remote islands like Pitcairn, Rapa and Line.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 13; Dorsal soft rays (total): 10 - 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 13. Body blue above, silvery below; variations in markings (spots, curved lines) occur. Silvery-yellow iris. When frightened or asleep, entire fish becomes mottled with very light and dark browns, with dark ones predominating in 7 diagonal zones across the sides; fins become mottled. Spines slender, pungent, venomous. Preopercle angle 85°-95°. Fine scales on cheek. Midline of thorax without scales. Superficially resembles S. canaliculatus and S. fuscescens, particularly when young, but differs by having a much more deeply forked tail (Ref. 1602).

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).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Venomous (Ref. 4537)

Human uses
Fisheries: commercial; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Phylogenetic diversity index (Ref. 82805)

PD₅₀ = 0.5000

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (K=0.75; tm=1)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (22 of 100)	High

Entered by Capuli, Estelita Emily

Modified by Kesner-Reyes, Kathleen

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Page last modified by : celloran, 20 January 2010

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