Dusky spinefoot (Siganus luridus) fish species and information / pictures of Dusky spinefoot - Siganus luridus

Dusky spinefoot (Siganus luridus) fish species information

Scientific Name
Siganus luridus

Common Name
Dusky spinefoot

Biology
Found in small schools in very shallow water close to the bottom. Prefer hard bottoms of compacted sand with rock or coral debris. Solitary adults and groups of 3 or 4 adults have also been observed. Feed on a wide range of benthic algae. May suddenly stop and erect its fins (dorsal, anal and pelvic) presenting an encircling array of spined to potential predators; these spines are venomous. A food fish that is occasionally poisonous (Ref. 4537). Probably does not adapt well in captivity (Ref. 12382). Minimum depth from Ref. 9710.

Classification

Classified By
R?ppell, 1829
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Rabbitfishes (Siganidae)

Distribution

Region
Western Indian Ocean
Distribution
Western Indian Ocean: Red Sea and East Africa to islands in the western Indian Ocean. Immigrant to Mediterranean via the Suez Canal.
Range
35°N - 35°S

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
2 m
Depth To - meters
40 m
Zone
reef-associated
Environment
Marine; reef-associated; depth range 2 - 40 m (Ref. 12382)
Trophic Level
2 s.e. 0.02 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
30.0 cm
Common Length
20.0 cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial
Vulnerability
Low to moderate vulnerability (33 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)
Threat To Humans
  Venomous (Ref. 1419)
IUCN Red List Status
  Not Evaluated