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Siganus virgatus (Valenciennes, 1835)

Barhead spinefoot
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Siganus virgatus   AquaMaps   Data sources: GBIF OBIS
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Image of Siganus virgatus (Barhead spinefoot)
Siganus virgatus
Picture by Randall, J.E.


Philippines country information

Common names: Alama, Balangin, Balawis
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded in Tañon Strait (Ref. 107276) and Leyte Gulf (Ref. 68980). Known from Siargao Island (Ref. 58652); Bolinao, Pangasinan (Ref. 87989), Nasugbu, Batangas (Ref. 107853), San Juan, Batangas (Ref. 107854) and Lanuza Bay (Ref. 104756). Museum: AMS I.10462, 22406; CAS-SU 21593, 26175, 21589, 21590, 21591, 21592 (Ref. 1419). Taytay fish market, FRLM 12137 - 38. Also Ref. 393, 48613, 59110.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kimura, S., 1995
National Database:

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335).
  More on author: Valenciennes.

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

seewasser; brackwasser riff-verbunden; tiefenbereich 1 - ? m (Ref. 48637), usually 1 - 20 m (Ref. 27115).   Tropical; 23°C - 28°C (Ref. 27115); 35°N - 25°S, 77°E - 154°E

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Indo-West Pacific: southern India, Sri Lanka, Andaman Islands, Thailand, southern and eastern coasts of China, Taiwan, Ryukyu, Philippines, Malaysia, Singapore, Indonesia and Northern Territory in Australia.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL Männchen/unbestimmt; (Ref. 9710); common length : 20.0 cm TL Männchen/unbestimmt; (Ref. 9813)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 13; Rückenflossenweichstrahlen (insgesamt) : 10; Afterflossenstacheln: 7; Afterflossenweichstrahlen: 9; Wirbelzahl: 13. A brown band running diagonally from nape to chin; another from 4th-5th dorsal spine base to pectoral fin base; ocular and shoulder bands spotted with blue; a zone of silvery yellow posterior and adjacent to the shoulder band. Preopercular angle 100°-111°; cheek scalation variable from few to almost fully scaled; midline of thorax fully scaled, sometimes with a row missing from pelvic ridges. A prominent rim or short tube encircle the anterior nostril, with a little peak on it posteriorly. Spines stout, fairly pungent and venomous.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Inhabits shallow coastal waters, around hard coral reefs and areas of sand with patches of rock and soft coral. Tolerant of murky waters. Larger juveniles and adults occur in pairs in coastal reef flats, slopes and estuaries . Small juveniles are found in mangroves and enter freshwater, moving to reefs usually in small groups among corals (Ref. 48637). Feed on benthic seaweeds (Ref. 9813).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Woodland, David J. | Partner

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 Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 18 July 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Venomous (Ref. 4537)




Nutzung durch Menschen

Fischereien: weniger kommerziell; Aquarium: Kommerziell
FAO(Publication : search) | FishSource |

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Räuber
Ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 29.1, mean 28.3 (based on 1192 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.01036 - 0.03504), b=3.13 (2.97 - 3.29), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.7   ±0.31 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).
Preiskategorie (Ref. 80766):   High.