Overview

Comprehensive Description

Biology

Found in lagoon and seaward reefs to depths greater then 30 m; juveniles in sheltered inner reef areas (Ref. 9710, 48637). Adults usually occur in pairs. Juveniles solitary and commonly among staghorn corals in lagoons or protected reefs (Ref. 48637).
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Distribution

Range Description

Zebrasoma desjardini is found from the Red Sea south to Natal, South Africa and east to India, Java, and Cocos-Keeling Islands, but not Christmas Island.
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Red Sea, Indo-West Pacific: East Africa, Seychelles, Madagascar and Mascarenes east to Hawaiian Islands and Tuamotu Archipelago, north to southern Japan and Ogasawara Islands, south to southern Great Barrier Reef (Queensland, Australia), New Caledonia and
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Indian Ocean: Red Sea south to Natal, South Africa and east to India, Java, and Cocos-Keeling Islands, but not Christmas Island.
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Red Sea, Indian Ocean.
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Physical Description

Size

Maximum size: 400 mm TL
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Max. size

40.0 cm TL (male/unsexed; (Ref. 3146))
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Zebrasoma desjardini is found in coral reefs and is usually solitary or in pairs. It is classified as a grazer (Choat 1991). Juveniles recruit into live, digitate coral (J.H. Choat pers. comm. 2010).

The sexes are separate among the acanthurids (Reeson 1983). Acanthurids do not display obvious sexual dimorphism, males assume courtship colours (J.H. Choat pers. comm. 2010).


Systems
  • Marine
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Environment

reef-associated; marine; depth range ? - 25 m (Ref. 48637)
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 150 - 150
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Zebrasoma desjardinii

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 5 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

CACCCTTTATTTAGTATTTGGTGCTTGAGCCGGAATAGTGGGAACAGCTCTAAGCCTACTCATCCGAGCAGAACTCAGCCAACCGGGCGCTCTCCTTGGGGACGACCAGATCTACAATGTAATCGTTACAGCACATGCATTTGTAATGATTTTCTTTATAGTTATACCAATCATGATTGGGGGATTCGGAAACTGGCTGATTCCACTAATGATTGGAGCCCCTGACATAGCATTCCCACGAATGAATAACATGAGCTTTTGACTTCTCCCGCCATCCTTCCTCCTTCTCCTTGCCTCCTCAGGCGTTGAAGCCGGGGCTGGCACAGGATGAACAGTATACCCCCCTCTGGCAGGCAATCTAGCGCATGCTGGGGCATCCGTAGACTTAACTATCTTCCCCCTCCATCTCGCGGGGATTTCATCAATTCTAGGGGCTATTAATTTTATTACAACTATTATTAACATAAAACCTCCCGCTATTTCACAATACCAAACCCCCCTATTTGTGTGAGCGGTCCTAATCACAGCTGTCTTACTTCTCCTCTCCCTTCCAGTTCTTGCTGCAGGGATTACAATGCTCCTCACAGACCGAAACCTAAATACTACCTTCTTCGACCCTGCGGGAGGAGGAGACCCCATTCTTTACCAACATCT
-- end --

Download FASTA File
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Statistics of barcoding coverage: Zebrasoma desjardinii

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 5
Specimens with Barcodes: 10
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
Myers, R., Choat, J.H., Abesamis, R., Clements, K.D., McIlwain, J., Nanola, C., Rocha, L.A., Russell, B. & Stockwell, B.

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

Contributor/s

Justification
Zebrasoma desjardini is widespread and occasionally to locally common in most parts of its range. It is harvested for the aquarium trade, but is not a major component (300 fish/year 1992 in the Maldivian market). There are no major threats known and it occurs in a number of marine protected areas in parts of its distribution. It is therefore listed Least Concern.
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Population

Population
Zebrasoma desjardini is common but not locally abundant. In the Maldives, 300 fish/year were reported in 1992 for the aquarium trade (Edwards and Shepherd 1992). In Duda, Red Sea, density estimates recorded 8.4 individuals/1,000 m2 (A.M. Ayling pers. comm. 2010).

In the Nabq Managed Resource Protected Area, South Sinai, Egyptian Red Sea, mean abundances of this species showed differences at various depths and between no-take zones (NTZ) and take zones (TZ). At 1 m depth of the NTZ, mean abundance was recorded at 3.33 while in the TZ it was 0.83. At 3 m depth of the NTZ, mean abundance was recorded at 5.17 while in the TZ it was 3.38. At 10 m depth of the NTZ, mean abundance was recorded at 0.75 and 1.71 in the TZ (Ashworth & Ormond, 2005).

The greater abundance of the Acanthuridae in the fished area than in the NTZ across 3 and 10 m depths, can be attributed to a result of reduced predation or competition (Ashworth and Ormond 2005).

Population Trend
Stable
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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

Red Sea sailfin tang

The Red Sea sailfin tang or Desjardin's sailfin tang (Zebrasoma desjardinii) is a marine reef tang in the fish family Acanthuridae.

Contents

Description

Zebrasoma desjardinii grows to a maximum length of 40 cm (16 in), with a sexual dimorphism, as males being larger than females. This species shows the typical morphology of the family Acanthuridae. The body is oval or disc-shaped, with erectile and much elevated dorsal and anal fins. The coloration may vary from one individual to another and within the same individual, depending on age. In general, the upper side of the body alternates orange and dark blue vertical bands, with a larger blue band on the eyes, a spotted ventral region and numerous white spots on the head. The dorsal and anal fins have a pattern of horizontal alternate orange and blue bands. The caudal fin shows white spots and lines.

Like most surgeonfish on each side of the caudal fin, in the middle of the caudal peduncle, there is a defensive dark spine surrounded by a blue zone. This spine is hinged and may unfolds to 80°.

In respect of Zebrasoma veliferum, adult Red Sea Sailfin tang has a few less anal fin rays (22-24 instead of 23-26) and different marking on the tail. As a juvenile, they are almost indistinguishable in color and markings.

Zebrasoma desjardinii displaying its soft dorsal and anal fins

Behavior

Adults usually can be found in pairs, while juveniles are solitary. When threatened, these fishes display their large ventral and dorsal fins. They feed primarily on filamentous algae, various macroalgae and plankton. They are pair spawners, a typical trait of other fish in the Zebrasoma genus. This differs from the group spawning typical of the Acanthuridae family.

Distribution

This species is widespread in the Indian Ocean from the southern Red Sea to KwaZulu-Natal Province in South Africa and as far east as India and Java.

Habitat

Red Sea sailfin tangs natively live in lagoons and reefs in a tropical climate. The juvenile fishes live in the inner reef areas. They prefer saltwater with a specific gravity of 1.020 - 1.025, a pH between 8.1 and 8.4 and an ideal temperature range of 22 - 26 C (72 - 78 F). They may live at water depths of 2 – 30 m (6.5 – 100 ft) or more.

Bibliography

  • Sprung, Julian y Delbeek, J.Charles. - The Reef Aquarium. Ricordea Publishing. 1994.
  • Debelius, Helmut y Baensch, Hans A. Atlas Marino. Mergus. 1997.
  • Michael, Scott W. (en inglés) Reef aquarium fishes. Microcosm.T.F.H. 2005.
  • Nilsen, A.J. y Fossa, S.A. - Reef Secrets. TFH Publications .2002.

References

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