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Overview

Comprehensive Description

Biology

An uncommon species found in coral and rocky reefs (Ref. 9710).
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Distribution

Range Description

Naso fageni is found from East Africa from Kenya to Mozambique, to central Japan, southwards to the Philippines and Flores, Indonesia. It is also found in Western Australia.
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Indo-West Pacific: Kenya south to Bazaruto Islands (Mozambique), Aldabra and Seychelles, and east to the Philippines (Ref. 3145). Reported from southern Japan (Ref. 9710) and Indonesia.
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Indo-West Pacific.
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Physical Description

Morphology

Dorsal spines (total): 5; Dorsal soft rays (total): 24 - 26; Analspines: 2; Analsoft rays: 23 - 25
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Size

Maximum size: 800 mm FL
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Max. size

80.0 cm FL (male/unsexed; (Ref. 9710))
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Diagnostic Description

Olivaceous grey in color; adults with small dusky spots and large specimens with a short protuberance above upper lip (Ref. 3145). Body ovate and compressed (Ref. 37429).
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Type Information

Holotype for Naso fageni
Catalog Number: USNM 122107
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1909
Locality: Bugsuk Island (South); North Balabac Strait, Bugsuk Island, Philippines, Philippine Archipelago, Balabac Strait, Sulu Sea, Pacific
Depth (m): 3 to 5
Vessel: Albatross
  • Holotype:
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Paratype for Naso fageni
Catalog Number: USNM 122106
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1909
Locality: Bugsuk Island (South); North Balabac Strait, Bugsuk Island, Philippines, Philippine Archipelago, Balabac Strait, Sulu Sea, Pacific
Depth (m): 3 to 5
Vessel: Albatross
  • Paratype:
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Paratype for Naso fageni
Catalog Number: USNM 122108
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1908
Locality: Zamboanga Mkt., Philippines, Pacific
Vessel: Albatross
  • Paratype:
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Naso fageni occurs in deeper non-reef environments (Klanten et al. 2004). Juveniles recruit into the back reef slopes (J.H. Choat pers. comm. 2010). The sexes are separate and there is evidence of sexual dimorphism in the caudal knives which are relatively larger in males (J.H. Choat pers. comm. 2010).

Systems
  • Marine
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Environment

reef-associated; marine; depth range 3 - 35 m (Ref. 9710)
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Depth range based on 7 specimens in 1 taxon.
Water temperature and chemistry ranges based on 6 samples.

Environmental ranges
  Depth range (m): 32.5 - 94
  Temperature range (°C): 26.287 - 26.922
  Nitrate (umol/L): 0.822 - 1.220
  Salinity (PPS): 34.753 - 35.085
  Oxygen (ml/l): 4.476 - 4.544
  Phosphate (umol/l): 0.189 - 0.298
  Silicate (umol/l): 3.255 - 4.102

Graphical representation

Depth range (m): 32.5 - 94

Temperature range (°C): 26.287 - 26.922

Nitrate (umol/L): 0.822 - 1.220

Salinity (PPS): 34.753 - 35.085

Oxygen (ml/l): 4.476 - 4.544

Phosphate (umol/l): 0.189 - 0.298

Silicate (umol/l): 3.255 - 4.102
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 3 - 35m.
From 3 to 35 meters.

Habitat: reef-associated. An uncommon species found in coral and rocky reefs (Ref. 9710).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Naso fageni

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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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
2012

Assessor/s
Russell, B., Choat, J.H., Abesamis, R., Clements, K.D., McIlwain, J., Myers, R., Nanola, C., Rocha, L.A. & Stockwell, B.

Reviewer/s
Edgar, G. & Kulbicki, M.

Contributor/s

Justification
Naso fageni is widely distributed but not reported from many localities within its range. It is caught only incidentally in subsistence fisheries. There are no apparent threats and its distribution overlaps with marine protected areas in parts of its range. It is therefore listed as Least Concern.
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Population

Population
In Kenya, landings during 1978-2001 for families that are less important in commercial catches (e.g., scarinae and Acanthuridae) showed rising catches (1978-1984) followed by a general decline during the 1990s, but the landings for the scarinae showed a rising trend in recent years (Kaunda-Arara et al. 2003). There is no other population information available for this species.

Population Trend
Unknown
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Threats

Major Threats
There are no major threats known for this species.

Surgeonfishes show varying degrees of habitat preference and utilization of coral reef habitats, with some species spending the majority of their life stages on coral reef while others primarily utilize seagrass beds, mangroves, algal beds, and /or rocky reefs. The majority of surgeonfishes are exclusively found on coral reef habitat, and of these, approximately 80% are experiencing a greater than 30% loss of coral reef area and degradation of coral reef habitat quality across their distributions. However, more research is needed to understand the long-term effects of coral reef habitat loss and degradation on these species' populations. Widespread coral reef loss and declining habitat conditions are particularly worrying for species that recruit into areas with live coral cover, especially as studies have shown that protection of pristine habitats facilitate the persistence of adult populations in species that have spatially separated adult and juvenile habitats (Comeros-Raynal et al. 2012).
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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 this species. However, its distribution overlaps several marine protected areas within its range.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial
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Wikipedia

Naso fageni

Naso fageni is a tropical fish found in the west Pacific and Indian Oceans.[1] It is known commonly as the horseface unicornfish or the horseface unicorn.[2] It is of value in commercial fisheries.[1]

References[edit]

  1. ^ a b Naso fageni at www.fishbase.org.
  2. ^ common names for Naso fageni at www.fishbase.org.


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