Overview

Distribution

Range Description

The Ringtail Cardinalfish, Nectamia annularis, is endemic to the Red Sea and the Gulf of Aden.
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Western Indian Ocean: Known only from the Red Sea and the Gulf of Aden.
  • Randall, J.E. 1986 Red Sea reef fishes. London, Immel Publishing. 192 p. (Ref. 8883)
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Gulf of Aden (northwestern Indian Ocean) and Red Sea.
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Physical Description

Size

Max. size

7.0 cm SL (male/unsexed; (Ref. 8883))
  • Randall, J.E. 1986 Red Sea reef fishes. London, Immel Publishing. 192 p. (Ref. 8883)
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Type Information

Paratype for Nectamia annularis
Catalog Number: USNM 147522
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1948
Locality: Saudi Arabia: Red Sea, Gubat Ashra, coral reef., Saudi Arabia, Red Sea, Indian
Depth (m): 1 to 1
  • Paratype:
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Paratype for Nectamia annularis
Catalog Number: USNM 112040
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): D. Erdman & H. Azizz
Year Collected: 1948
Locality: Saudi Arabia: Red Sea, pier 2 miles north of Jidda [sic], SAMS (Saudi Arabian Mining Syndicate) pier., Saudi Arabia, Red Sea, Indian
  • Paratype:
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Type for Nectamia annularis
Catalog Number: USNM 147518
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): D. Erdman & H. Azizz
Year Collected: 1948
Locality: Saudi Arabia: Red Sea, pier 2 miles north of Jidda [sic], SAMS (Saudi Arabian Mining Syndicate) pier., Saudi Arabia, Red Sea, Indian
  • Type:
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Nectamia annularis is a small planktivorous coral reef fish, found to a depth of 17 m. During the night, fish of this species forage either individually or in small groups in the shallow waters above the coral reefs. During the day, N. annularis hide in deep crevices and caves. Like other cardinal fish, N. annularis exhibit distinct pairing during courtship and spawning. This species is a mouth-brooder.

Systems
  • Marine
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Environment

reef-associated; marine; depth range 0 - 17 m (Ref. 57178)
  • Ocean Biogeographic Information System 2006 OBIS-extracted Depth Data. Harvested by E.Agbayani July 2006 at www.iobis.org. (Ref. 57178)
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 16.8 - 16.8
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Life History and Behavior

Life Cycle

Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).
  • Thresher, R.E. 1984 Reproduction in reef fishes. T.F.H. Publications, Inc. Ltd., Neptune City, New Jersey. 399 p. (Ref. 240)
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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
Fricke, R. & Gon, O.

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. & Livingston, F.

Justification
Nectamia annularis has been assessed as Least Concern. Despite localized declines due to habitat degradation, much of this species habitat is not under threat. This species has been described as common in Eilat and is likely to be common throughout its range.
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Population

Population
Nectamia annularis is reported to be a common, nocturnal coral-reef fish in Eilat, Red Sea (Holzman and Genin 2003) and is likely to be common elsewhere in its range (O. Gon pers. comm. 2009).

Population Trend
Stable
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Threats

Major Threats
This species is not known to be threatened by harvesting for the aquarium trade but may be undergoing localised declines due to habitat degradation. The coral reefs off Eilat are threatened by a number of factors including mariculture effluent, sewage, bilge and ballast water, ship fuel discharge, intense tourism pressure, and discharge of detergents and phosphates. The reefs of Eilat are considered to be in a 'critical state' (Wilkinson 2004), but elsewhere in the range of this species, reefs are likely to be less threatened. Crown of Thorns Starfish is a localized threat. Overall, these localized threats do not appear to be driving rapid population declines (O. Gon pers. comm. 2009).
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
There are no known species-specific conservation measures in place for Nectamia annularis. There has been some success in establishing marine protected areas (MPAs) in the Red Sea, but there is little or no effective regional MPA network, and most of the MPAs have ineffective management (Kotb et al. 2004).
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