Mottled spinefoot (Siganus fuscescens)

Scientific name: Siganus fuscescens Houttuyn, 1782

Mottled spinefoot (Siganus fuscescens)

The Mottled spinefoot (Siganus fuscescens) is a brackish-water fish of the family Siganidae.

Biology

Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 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.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Siganus fuscescens
Family
Siganidae (Rabbitfishes)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
40.0
Common length
25.0
Depth range
50 m (164 ft)
Environment
Marine; brackish; reef-associated; oceanodromous; depth range ? - 50 m
Climate
Tropical
Distribution
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.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Venomous
Uses
Fisheries: commercial; aquaculture: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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