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Siganus unimaculatus  (Evermann & Seale, 1907)

Blotched foxface
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Image of Siganus unimaculatus (Blotched foxface)
Siganus unimaculatus
Picture by Marsden, A.

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).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range ? - 30 m (Ref. 58652), usually 1 - 30 m (Ref. 27115).   Tropical; 26°C - 28°C (Ref. 27115); 30°N - 30°S

Size / Weight / Age

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

Short description 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.

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

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

Biology     Glossary (e.g. epibenthic)

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).

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.

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Venomous




Human uses

Fisheries: commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00609 - 0.04520), b=3.00 (2.76 - 3.24), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  2.7   ±0.30 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (18 of 100) .
Price category (Ref. 80766):   High.