Table of Contents
Overview
Comprehensive Description
Biology
Inhabits coastal rocky and coral reefs (Ref. 9710). Feeds on algae from hard substratum (Ref. 9710).
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Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino 1984 The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
http://www.fishbase.org/references/FBRefSummary.php?id=559&speccode=7
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Distribution
Indo-West Pacific: Sri Lanka to the Philippines, north to the Ryukyu Islands.
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Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Range Description
This species is found from the Ryukyu Islands in the north, southwards to Sulawesi and Halmahera, Indonesia. It was recently recorded from Manus Island and East Timor. Records from the Indian Ocean and North West Australia may be C. cyanescens and C. rhakoura respectively.
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Physical Description
Morphology
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Analspines: 3; Analsoft rays: 9
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Shao, K.T. and L.-W. Chen 1989 Fishes of the family Scaridae from Taiwan. Bull. Inst. Zool. Academia Sinica 28(1):15-39. (Ref. 43542)
http://www.fishbase.org/references/FBRefSummary.php?id=43542&speccode=8394
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Size
Max. size
42.0 cm TL (male/unsexed; (Ref. 9710))
-
Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Diagnostic Description
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).
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Shao, K.T. and L.-W. Chen 1989 Fishes of the family Scaridae from Taiwan. Bull. Inst. Zool. Academia Sinica 28(1):15-39. (Ref. 43542)
http://www.fishbase.org/references/FBRefSummary.php?id=43542&speccode=8394
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Type Information
Type for Chlorurus oedema
Catalog Number: USNM 62951
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): C. Gilbert, J. Snyder, M. Sindo, H. Heath, C. Burke, H. Torrey & A. Clark
Year Collected: 1906
Locality: Naha, Okinawa, Japan., Okinawa, Japan, Ryukyu Islands, Pacific
Vessel: Albatross
Catalog Number: USNM 62951
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): C. Gilbert, J. Snyder, M. Sindo, H. Heath, C. Burke, H. Torrey & A. Clark
Year Collected: 1906
Locality: Naha, Okinawa, Japan., Okinawa, Japan, Ryukyu Islands, Pacific
Vessel: Albatross
- Type:
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Ecology
Habitat
Environment
reef-associated; brackish; marine; depth range ? - 35 m (Ref. 9710)
-
Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Habitat and Ecology
Habitat and Ecology
Systems
This species is a small Chlorurus not exceeding 45 cm (TL). It is found solitary or in small groups on reef fronts (Bellwood 2001). It is found in a variety of reef habitats and can occupy inshore reef areas (J.H. Choat pers comm. 2009).
Systems
- Marine
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Depth: 0 - 35m.
Recorded at 35 meters.
Habitat: reef-associated.
Recorded at 35 meters.
Habitat: reef-associated.
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Trophic Strategy
Occurs inshore (Ref. 75154). Inhabits coastal rocky and coral reefs. Feeds on algae from hard substratum.
-
Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Conservation
Conservation Status
IUCN Red List Assessment
Red List Category
LC
Least Concern
Red List Criteria
Version
3.1
Year Assessed
2010
Assessor/s
Choat, J.H., Carpenter, K.E., Clements, K.D., Russell, B., Rocha, L.A., Myers, R., Lazuardi, M.E., Muljadi, A., Pardede, S. & Rahardjo, P.
Reviewer/s
McIlwain, J. & Craig, M.T.
Contributor/s
Justification
This species is relatively rare and is therefore not heavily exploited. It is found in marine protected areas in parts of its range. It is therefore listed as Least Concern.
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Trends
Population
Population
Population Trend
There is no population information available for this species. It is a relatively rare species over its entire range (J.H. Choat pers comm. 2009).
Population Trend
Unknown
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Threats
Least Concern (LC)
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IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
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Major Threats
There are no major threats known for this species.
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Management
Conservation Actions
Conservation Actions
There are no species-specific conservation measures in place for this species. However, its distribution overlaps several marine protected areas within its range.
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