Hong Kong country information

Common names: Goldlined Spinefoot, 星藍子魚
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Wilson, K.D.P., 2003
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Rare. Only a single individual was seen in a rocky reef at Tsim Chau (Ref. 128523). The species was only observed on 1 occasion during 400 dive surveys on artificial reefs (Ref. 119494). Sometimes enter brackish waters, eventually rivers and streams (Ref. 129476). Also Ref. 94637.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/hk.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Wilson, K.D.P., 2003
National Database:

Common names from other countries

Goldlined spinefoot, Sigan raies d'or, Sigano rayas doradas, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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: Bloch.

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

marinhas; estuarina associadas(os) a recifes; intervalo de profundidade 0 - 25 m (Ref. 90102). Tropical; 24°C - 28°C (Ref. 27115); 30°N - 30°S

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Eastern Indian Ocean and Western Pacific: Andaman Islands, Thailand, Malaysia, Singapore, Indonesia (including Irian Jaya), Viet Nam, Ryukyus, southern and eastern China, Taiwan, South China Sea, Philippines, and Palau. Replaced by Siganus lineatus to the west, south and east of the region described by the said localities.

Length at first maturity / Tamanho / Peso / Idade

Maturity: L_m 18.1, range 12 - ? cm
Max length : 42.0 cm TL macho/indeterminado; (Ref. 9710); common length : 25.0 cm TL macho/indeterminado; (Ref. 9813)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 13; Raios dorsais moles (total): 10; Espinhos anais 7; Raios anais moles: 9; Vértebras: 13. Dusky blue dorsally, silvery below; a bright yellow spot adjacent to last few rays of dorsal fin; head with lines and spots. Preopercular angle 91°-102°; strong scales fully cover the cheeks; midline of thorax scaled, not the pelvic ridges. Anterior nostril with extremely low rim, slightly expanded posteriorly. Spines stout, pungent, venomous.

Inhabits turbid inshore reefs among mangroves; tolerates or even prefers low salinities. Fry settles in seagrass beds around river mouths and adults enter and leave rivers with the tide, but also found on the drop-offs of inshore fringing reefs down to 6 m. Schools throughout life; school size for adults around 10 or 15. Feeds on benthic algae. Unlike other siganids, this species is reported to be active at night. Sold fresh in markets (Ref. 9813, 48637).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Usually spawns at midnight.

Referência principal Upload your references | Referências | Coordenador : Woodland, David J. | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Preocupação menor (LC) ; Date assessed: 12 March 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Venomous (Ref. 4537)

Utilização humana

Pescarias: espécies comerciais; Aquacultura: espécies comerciais; Aquário: Espécies comerciais

FAO(Publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 29.3, mean 28.7 (based on 2193 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01660 (0.01304 - 0.02112), b=3.07 (3.01 - 3.13), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Nível Trófico (Ref. 69278): 2.7 ±0.30 se; based on food items.

Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (19 of 100).

Categoria de preço (Ref. 80766): High.

Siganus guttatus (Bloch, 1787)