Overview

Comprehensive Description

Biology

Common in shallow sand and rubble areas (Ref. 9710). Benthopelagic (Ref. 58302). Feeds on bivalves, gastropods, crabs, sea urchins, heart urchins, hermit crabs, shrimps, polychaetes, amphipods, isopods, chitons and foraminiferans (Ref. 33411).
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Distribution

Range Description

This species is known only from the Hawaiian Islands (USA).
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Eastern Central Pacific: known only from the Hawaiian Islands.
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Physical Description

Size

Max. size

19.3 cm TL (male/unsexed; (Ref. 3921))
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species inhabits sand and rubble patches adjacent to and within coral reefs, usually among algae, in depths less than 10 m. It feeds on mollusks, gastropods, crustaceans, echinoderms, polychaetes, amphipods, isopods, chitons, and foraminiferans (Randall, 1985).

Systems
  • Marine
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 6.5 - 6.5
  Temperature range (°C): 25.104 - 25.104
  Nitrate (umol/L): 0.006 - 0.006
  Salinity (PPS): 34.930 - 34.930
  Oxygen (ml/l): 4.799 - 4.799
  Phosphate (umol/l): 0.114 - 0.114
  Silicate (umol/l): 1.304 - 1.304
 
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Environment

reef-associated; marine; depth range 2 - 10 m (Ref. 58302)
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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
Craig, M.T.

Reviewer/s
Rocha, L.A. & Carpenter, K.E.

Contributor/s

Justification
This is a very common species throughout its range. There are no known threats to this species, and more than two thirds of its range is enclosed by the boundaries of the Papahanaumokuakea Marine Protected Area, a no-take marine reserve. It is therefore listed as Least Concern.
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Population

Population
There is no available explicit information on population trends. However casual observations and most species accounts indicate that this species is very common throughout its range.

Population Trend
Unknown
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Threats

Threats

Major Threats
There are no known threats for this species.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no species specific conservation measures in place, however more than two thirds of its range is enclosed by the boundaries of the Papahanaumokuakea Marine National Monument, a federally protected no-take marine reserve (USA).
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Relevance to Humans and Ecosystems

Benefits

Importance

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 External link.
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