Rivulated parrotfish (Scarus rivulatus) fish species and information / pictures of Rivulated parrotfish - Scarus rivulatus

Rivulated parrotfish (Scarus rivulatus) fish species information

Scientific Name
Scarus rivulatus

Common Name
Rivulated parrotfish

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 9. Males easily recognized by the yellow pectoral fins and orange cheeks. Females plain grey with pale lines along abdominal area (Ref. 48636). The initial phase closely resembles that of S. globiceps and S. psittacus. Differences lie in the number of scale row and scales in the ventral side.

Classification

Classified By
Valenciennes, 1840
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Parrotfishes (Scaridae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: Thailand to New Caledonia, north to the Ryukyu Islands, south to Perth and New South Wales in Australia. Recently recorded from Tonga (Ref. 53797).
Range
30°N - 32°S

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
reef-associated
Environment
Marine; reef-associated
Trophic Level
2 s.e. 0.00 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
40.0 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: commercial
Vulnerability
Moderate vulnerability (39 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)