Siganus fuscescens, Mottled spinefoot : fisheries, aquaculture, gamefish

Siganus fuscescens (Houttuyn, 1782)

Mottled 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 fuscescens   AquaMaps   Data sources: GBIF OBIS
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Image of Siganus fuscescens (Mottled spinefoot)
Siganus fuscescens
Afbeelding van Kuiter, R.H.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

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

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien; brak water rifbewoner; oceanodroom (Ref. 51243); diepte 1 - 50 m (Ref. 9813). Tropical; 42°N - 37°S, 90°E - 171°E

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Western Pacific: southern Korea, southern Japan, Ogasawara Islands, Taiwan, southern China, Malaysia, Singapore, Thailand, Andaman Islands, Indonesia, Philippines, Yap, Palau, Pohnpei (Caroline Islands), Solomon Islands, Papua New Guinea, Vanuatu, New Caledonia, and Australia. Often misidentified as Siganus canaliculatus (Ref. 2334).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 12.9  range ? - ? cm
Max length : 40.0 cm TL mannelijk / geslacht onbekend; (Ref. 9813); common length : 25.0 cm TL mannelijk / geslacht onbekend; (Ref. 9813); max. gepubliceerd gewicht: 1.2 kg (Ref. 131261)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 13; Dorsale zachte stralen (totaal) : 10; Anale stekels: 7; Anale zachte stralen: 9; Wervels: 13. Body olive green or brown above, silvery below; fish frequently with a dark patch below origin of lateral line. Adults become mottled when frightened. Slender, pungent, venomous spines. Preopercular angle 89°-95°. Lower half to 2/3 of cheeks commonly covered with weak, scattered scales. Midline of thorax between pelvic ridges. Differs from S. argenteus in details of coloration and less deeply forked tail (Ref. 37816).
Body shape (shape guide): short and / or deep; Cross section: compressed.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Inhabits algal and seagrass flats and shallow lagoon and coastal reefs (Ref. 9710, 11230). Forms schools. Mainly diurnal. Juveniles feed on filamentous algae, adults feed on leafy algae and seagrasses (Ref. 9710). Commercially cultured in Japan. Commonly found in large estuaries (Ref. 9002). Anterolateral glandular groove with venom gland (Ref. 57406).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

In Belau, ripe individuals form prespawning congregations of 30-60 individuals in shoal areas of inner reef flats; spawning occurs on the 4th or 5th day of the new moon; spawning sites are near reef edge. About 300,000 eggs/female at a single spawning. Individuals that spawn in consecutive yrs. & that 2+ yr. class fish could spawn more than once in a single season. Aug (Ref 1754) in Belau.

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Woodland, David J. | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

  Niet bedreigd (LC) ; Date assessed: 10 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Venomous (Ref. 4716)





Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel; sportvis: ja
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Schattingen op basis van modellen

Gewenste temperatuur (Ref. 123201): 22.6 - 29, mean 27.9 °C (based on 760 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.01005 - 0.01651), b=3.04 (2.99 - 3.09), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  2.0   ±0.1 se; based on diet studies.
Generation time: 1.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref. 59153):  Low vulnerability (21 of 100). 🛈
Prijsklasse (Ref. 80766):   High.
Voedingsstoffen (Ref. 124155):  Calcium = 36.7 [18.1, 83.9] mg/100g; Iron = 0.709 [0.352, 1.481] mg/100g; Protein = 19.2 [17.9, 20.4] %; Omega3 = 0.145 [0.082, 0.262] g/100g; Selenium = 24.8 [10.9, 52.7] μg/100g; VitaminA = 34.4 [9.7, 114.8] μg/100g; Zinc = 1.8 [0.7, 3.5] mg/100g (wet weight); based on nutrient studies.