Siganus rivulatus

Size range: 20-25 cm

Common size: 20 cm

Depth range: 1-30 m

Habitat:

• Hard - rocky reef
• Vegetation - sea grass beds

Water column position:

• Benthic

Colors & patterns:

• Small terminal mouth opening downwards
• Yellowish lines on ventral part (sometimes hardly seen)
• Tail slightly forked
• Body colors are variable: overall color pale-gray, sometimes greenish, seldom dark; night marbled pattern sometime displayed by day

Behavior:

• Reef-associated - related to sites it inhabits
• Diurnal
• Shy

Schooling characteristics:

• Large schools

Feeding: Feeds by grazing on algae

Native/Exotic: Exotic

EM notes: Immigrated from the Red Sea through the Suez canal. It has been recorded in the Mediterranean since 1927.

WARNING! Fin spines are slightly venomous.

Can be confused with: Siganus luridus.