Overview

Comprehensive Description

Biology

Inhabits rocky bottoms.
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Distribution

Range Description

Pseudanthias caudalis is found along the Pacific coast of Honshu and the nearby islands, to the Ogasawara Islands (Kuiter and Debelius 2007).
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Northwest Pacific: Japan.
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Western North Pacific.
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Physical Description

Size

Maximum size: 170 mm SL
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Max. size

17.0 cm SL (male/unsexed; (Ref. 559))
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Pseudanthias caudalis is a demersal species that has a depth range of 50-100 m and can be found over coral and rocky substrates. This species forms schools above the reef (P.C. Heemstra pers. comm. 2009). This species mixes with other anthiids while feeding on zooplankton above the reef (Kuiter and Debelius 2007).

Systems
  • Marine
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Environment

demersal; marine; depth range 50 - 100 m (Ref. 559)
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Depth: 50 - 100m.
From 50 to 100 meters.

Habitat: demersal. Inhabits rocky bottoms.
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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
Heemstra, P.C. & Sadovy, Y.J.

Reviewer/s
Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.

Contributor/s
De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P. & Smith, J. and Livingston, F.

Justification
Pseudanthias caudalis has been assessed as Least Concern. This species typically occurs on offshore deepwater reefs where it is protected from collection for the aquarium trade and inshore pollution sources. This species is likely to be locally abundant.
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Population

Population
There is no population information available for Pseudanthias caudalis, however the life history characteristics of the Anthiinae subfamily (short-lived, high natural mortality rate, high growth rate and high recruitment rate) (Russ and Alcala 1998) suggests that this species may be locally abundant.

Population Trend
Unknown
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Threats

Major Threats
Due to the deep water nature of this species, it is not commonly seen within the aquarium trade (P.C. Heemstra pers. comm. 2009). This species largely occurs on offshore reefs where it is unlikely to be impacted by inshore pollution (P.C. Heemstra pers. comm. 2009). The use of piscicides is prohibited within Japanese waters (P.C. Heemstra pers. comm. 2009) so this is unlikely to pose a threat.
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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 for Pseudanthias caudalis.
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