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Oxycheilinus unifasciatus — Details

Ringtail Wrasse learn more about names for this taxon

Overview

Comprehensive Description

Biology

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Usually solitary in coral rich areas of clear lagoon and seaward reefs. Hovers well above the bottom (Ref. 9710, 48636). Young secretive in soft corals and hydrozoans (Ref. 48636). Benthopelagic (Ref. 58302). Feeds mainly on fishes, shrimps and other crustaceans (Ref. 9823). May be ciguatoxic (Ref. 37816).

Westneat, M.W. 1993 Phylogenetic relationships of the tribe Cheilinini (Labridae: Perciformes). Bull. Mar. Sci. 52(1):351-394. (Ref. 7441) http://www.fishbase.org/references/FBRefSummary.php?id=7441&speccode=5596

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Distribution

Range Description

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This species is widespread in the Indo-Pacific, and is found from Cocos-Keeling Island in the eastern Indian Ocean to the Pitcairn and Ducie islands, north to the Ryukyu Islands, south to Rowley Shoals in northwestern Australia.

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Eastern Indian Ocean and Pacific Ocean: Christmas Island in the eastern Indian Ocean to the Hawaiian, Marquesan and Tuamoto islands, north to the Ryukyu Islands, south to Rowley Shoals in northwestern Australia, New Caledonia, and Rapa.

Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602) http://www.fishbase.org/references/FBRefSummary.php?id=1602&speccode=4306

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Physical Description

Morphology

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Dorsal spines (total): 9; Dorsal soft rays (total): 10; Analspines: 3; Analsoft rays: 8 - 11

Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334) http://www.fishbase.org/references/FBRefSummary.php?id=2334&speccode=13770

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Size

Max. size

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46.0 cm TL (male/unsexed; (Ref. 2334)); max. published weight: 1,400 g (Ref. 2334)

Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334) http://www.fishbase.org/references/FBRefSummary.php?id=2334&speccode=13770

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Diagnostic Description

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Adults developing a distinctive black blotch covering the rears of the dorsal and anal fins (Ref. 37816). Display a bright white band over the tail (Ref. 48636). White bar often present on caudal peduncle (this pattern very changeable). Red lines radiating posteriorly from eye continuous across opercle to posterior opercular edge. Membranes of spinous portion of dorsal fin smooth, not incised (Ref 9823).

Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334) http://www.fishbase.org/references/FBRefSummary.php?id=2334&speccode=13770

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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology

This is species is reef-associated and is usually found solitary in coral rich areas of clear lagoon and seaward reefs to depths of 161 m. Juveniles are associated with soft corals and hydrozoans. It feeds mainly on fishes, shrimps and other crustaceans (Westneat 2001). It may be ciguatoxic (Myers 1999).

Systems

Marine

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Habitat

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Known from seamounts and knolls

Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication. http://www.marinespecies.org/porifera/porifera.php?p=sourcedetails&id=145453

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Depth range based on 82 specimens in 1 taxon.
Water temperature and chemistry ranges based on 78 samples.

Environmental ranges
  Depth range (m): 2.135 - 50000
  Temperature range (°C): 25.069 - 28.954
  Nitrate (umol/L): 0.051 - 2.089
  Salinity (PPS): 34.131 - 35.344
  Oxygen (ml/l): 4.438 - 4.727
  Phosphate (umol/l): 0.113 - 0.214
  Silicate (umol/l): 0.869 - 4.407

Graphical representation

Depth range (m): 2.135 - 50000

Temperature range (°C): 25.069 - 28.954

Nitrate (umol/L): 0.051 - 2.089

Salinity (PPS): 34.131 - 35.344

Oxygen (ml/l): 4.438 - 4.727

Phosphate (umol/l): 0.113 - 0.214

Silicate (umol/l): 0.869 - 4.407

Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Source: Ocean Biogeographic Information System

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Environment

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reef-associated; marine; depth range 1 - 160 m (Ref. 1602)

Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602) http://www.fishbase.org/references/FBRefSummary.php?id=1602&speccode=4306

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Trophic Strategy

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Occurs inshore (Ref. 75154). Usually solitary in coral rich areas of clear lagoon and seaward reefs. Hovers well above the bottom (Ref. 9710). Feeds mainly on fishes, shrimps and other crustaceans (Ref. 9823).

Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602) http://www.fishbase.org/references/FBRefSummary.php?id=1602&speccode=4306

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Oxycheilinus unifasciatus

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Species: 6
Species With Barcodes: 1

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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category

LC

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2010

Assessor/s

Craig, M., Rocha, L. & Liu, M.

Reviewer/s

Sadovy, Y. & Carpenter, K.E.

Contributor/s

Justification

This species is widespread in the Indo-Pacific, is common in some parts of its range, and is found in deeper waters. There are no major threats known to this species. It is listed as Least Concern. However, more information on population trends and its harvest level is needed.

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Trends

Population

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Population

There is no population information available for this species.

In New Caledonia, a total of 52 individuals were recorded in several UVC surveys with a size of 6-28cm (M. Kulbicki pers. comm. 2008). In French Polynesia, a total of 16 individuals were recorded in several UVC surveys with a size of 8-22cm (M. Kulbicki pers. comm. 2008).

Population Trend

Unknown

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Threats

Threats

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Major Threats

There are no major threats known for this species, although it is occasionally caught in minor fisheries and is collected for the aquarium trade.

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Least Concern (LC)

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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Management

Conservation Actions

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Conservation Actions

There are no specific conservation measures in place for this species. Its distribution overlaps several marine protected areas within its range. More species-specific information on population trends and harvest levels is needed.

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Relevance to Humans and Ecosystems

Benefits

Importance

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fisheries: minor commercial; aquarium: commercial

Miyasaka, A. 1993 A database on scientific and common names of fishes exported from Hawaii. The information was derived from the above mentioned database. A printout of the names is also available from the State of Hawaii, Department of Land and Natural Resources, 1151 Punchbowl Street, Honolulu, Hawaii. (Ref. 5358) http://www.fishbase.org/references/FBRefSummary.php?id=5358&speccode=4306
Honebrink, R. 1990 Fishing in Hawaii: a student manual. Education Program, Division of Aquatic Resources, Honolulu, Hawaii. 79 p. (Ref. 4887) http://www.fishbase.org/references/FBRefSummary.php?id=4887&speccode=81

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