Knothead parrotfish
📖 Overview
Knothead parrotfish (Chlorurus oedema), first described by Snyder, 1909 is a large fish in the family Labridae (order Perciformes). Adults typically reach 42.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 1 to 50 metres. It occurs in Tropical waters. It feeds primarily on plankton, plant material, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Labridae kept in the hobby.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 9. Head with a hump, right above eye and vertically abrupt to snout. Median predorsal scales 3. Cheek with 3 scale rows (upper and middle rows 5, lower 1 or 2).: short and / or deep; Cross section: compressed.
🌀 Behaviour
Behavioural data for Knothead parrotfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
Oviparous, distinct pairing during breeding .
🌍 Habitat & Distribution
Marine; brackish; reef-associated; depth range 1 - 50 m . Tropical West Pacific: Sri Lanka to the Philippines, north to the Ryukyu Islands.
🌿 Ecology
algae from hard substratum (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Knothead Parrotfish · Uniform Humphead Parrotfish |
| 🇯🇵Japanese | Kobubudai · コブブダイ |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Callyodon oedema | Snyder | 1909 | Synonym |
| Scarus oedema | Snyder | 1909 | Synonym |
🦠 Common Diseases
The following diseases are known to affect Knothead parrotfish.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
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