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🌊 Marine Least Concern 🌡️ Tropical

Spotted parrotfish

Cetoscarus ocellatus Valenciennes, 1840
Max Length
80 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
0–30 m
Climate
Tropical
Resilience
Medium
Vulnerability
40.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Inhabits seaward reefs and clear lagoons , at depths of 1-30 m. Occurs in groups of females with one male form harems; while juveniles are usually solitary . Males are territorial. Goes to several changes during growth and very large females change sex to the brightly colored male. Small juveniles usually in dense coral and algae habitats . Feeds on benthic algae . Minimum depth reported taken from Ref. 128797.

Scientific Name
Cetoscarus ocellatus
Authority
Valenciennes, 1840
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
80 cm
Depth Range
0–30 m
Resilience
Medium
Vulnerability
40.00/100
Salinity
30–40 ppt

🐟 Physical Description

This species is characterized by the following: 14-15 (usually 14) pectoral rays; 5-7 (usually 6) median predorsal scales; 3 rows of scales on cheek, the lower one with 3-7 scales; nodular outer surface of dental plates (vs. smooth on Chlorurus, Hipposcarus and Scarus); conical teeth absent on side of dental plates; lips largely covering dental plates; long snout 1.8-2.2 in HL; juveniles with rounded caudal fin, emarginate in adults. Initial phase with head purplish to reddish brown, finely spotted with black ventrally; body with a broad, pale yellowish zone dorsally, bluish gray below; scales rimmed and spotted with black; median fins brownish red and caudal with a whitish crescent posteriorly. Terminal males green, scales rimmed with pink, head and anterior body with numerous small pink spots except below an orange line from corner of the mouth to pectoral base and across upper abdomen, where solid green with broad, pink, longitudinal ventral band; juveniles white with a broad, dark-edged orange bar covering head except snout and chin, a large, orange-rimmed black spot anteriorly in dorsal fin, and a broad, submarginal orange band in caudal fin .: fusiform / normal.

🌀 Behaviour

Behavioural data for Spotted parrotfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Size at Maturity
30cm TL

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 30 m . Tropical South Africa, eastwards to the Tuamotos including eastern Australia and Middleton Reef; north to southern Japan; south to western Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
🧍 Solitary
Food Items

benthic algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01413 × L3.03 (TL)
Max TL
80cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
40.00/100
Moderate vulnerability
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Valenciennes, 1840

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