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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Palecheek parrotfish

Chlorurus japanensis Bloch, 1789
Max Length
56.2 cm
Max Weight
2.2 kg
Lifespan
-
Trophic Level
2
Depth
0–20 m
Climate
Tropical
Resilience
Low
Vulnerability
55.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Inhabits seaward coral and rocky reefs ; inner reefs with rich coral habitat . Feeds on benthic algae . May occur in small groups of 1 TP with 1 to 3 IPs . Caught mainly with traps, nets and other types of artisanal gear. Minimum depth reported taken from Ref. 128797.

Scientific Name
Chlorurus japanensis
Authority
Bloch, 1789
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
56.2 cm
Max Weight
2.2 kg
Depth Range
0–20 m
Latitude
24°S – 30°N
Trophic Level
2
Resilience
Low
Vulnerability
55.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 9. This species is further distinguished by having the following characters: median predorsal scales 4; scale rows on cheek 2; conical teeth absent on side of lower dental plate, 0-2 on upper plate of initial phase and often 2 on terminal male; lips slightly covers the dental plates; caudal fin in subadult slightly rounded to truncate and slightly emarginate in terminal male. Colour of male distinctly bicolored, with purple-brown anterior, and oblique division to pale yellow posterior; female entirely dark brown with red-orange tail .: fusiform / normal.

🌀 Behaviour

Behavioural data for Palecheek parrotfish is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 20 m . Tropical; 30°N - 24°S, 102°E - 153°W Pacific Ocean: Ryukyu Islands to Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2
Food Items

benthic algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01175 × L3.04 (TL)
Max TL
56.2cm
Max Weight
2,200g
Dorsal Spines
9
Dorsal Rays
10
Anal Spines
3
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
55.00/100
Moderate-High vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
30°N – 24°S
Described By
Bloch, 1789

🍽️ Edibility & Flavour

"Palecheek parrotfish is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

⚡ Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 18.6 g
Omega-3 (total) 93 mg

🔬 Mercury Safety

Mercury data for Palecheek parrotfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Japanese Parrotfish · Pale Bullethead Parrotfish · Palecheek parrotfish · Red-tailed Parrotfish · Redtail Parrotfish · Yellow-blotched Parrotfish
🏳️Catalan Peix lloro japonès
🌍CES ploskozubec japonský
🌍FIJ soqo
🇫🇷French Perroquet à joue pâle · Perroquet de Bloch
🇮🇹Italian Pesce pappagallo guance pallide
🇯🇵Japanese Shijukara · シジュウカラ
🌍MSA Kalat · Ketarap · Perencong
🇵🇹Portuguese Papagaio Rosto Pálido · Peixe-papagaio-nipônico
🇪🇸Spanish Loro rostro Pálido
🌍TGL Luro · Lutiin
🇨🇳Chinese 日本綠鸚哥魚 · 日本綠鸚嘴魚 · 日本绿鹦嘴鱼 · 菜仔魚(雌) · 青衫(雄) · 鸚哥

Scientific Synonyms

Scientific Name Author Year Status
Callyodon abacurus Jordan & Seale 1906 Synonym
Callyodon blochi Valenciennes 1840 Synonym
Callyodon japanensis Bloch 1789 Synonym
Callyodon philippinus Fowler 1918 Synonym
Callyodon pyrrhurus Jordan & Seale 1906 Synonym
Chlorurus japonensis Bloch 1789 Synonym
Chlorurus pyrrhurus Jordan & Seale 1906 Synonym
Scarus blochii Valenciennes 1840 Synonym
Scarus japanensis Bloch 1789 Synonym
Scarus pyrrhurus Jordan & Seale 1906 Synonym
Scarus viridis Bloch 1790 Heterotypic

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

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