Acanthurus monroviae

Acanthurus monroviae, the Monrovia doctorfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. It is found in the eastern Atlantic Ocean.

Acanthurus monroviae
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Acanthuridae
Genus: Acanthurus
Species:
A. monroviae
Binomial name
Acanthurus monroviae

Taxonomy

Acanthurus monroviae was first formally described in 1876 by the Austrian ichthyologist Franz Steindachner with its type locality given as Monrovia, Liberia.[2] The genus Acanthurus is one of two genera in the tribe Acanthurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamilies in the family Acanthuridae.[3]

Description

Acanthurus monroviae has its dorsal fin supported by 9 spines and between 24 and 26 soft rays while the anal fin is supported by 6 spines and 24 to 26 soft rays.[4] The body is oval and laterally compressed with an overall brown colour. This is broken by a patch of orange-yellow around the spine on the caudal peduncle.[5] In life there are many wavy, horizontal light blue lines on the head and body. The upper margin of the operculum is yellow. The caudal fin is lunate with a whitish rear margin.[6] The maximum published standard length of 45 cm (18 in).[4]

Distribution and habitat

Acanthurus monroviae is present in the tropical eastern Atlantic Ocean from southern Morocco to Angola, including the Canary islands, Cape Verde and Gulf of Guinea.[4] It has been observed, but rarely, in the Mediterranean Sea since 1987.[7] Vagrants have also been reported from the coast of Brazil.[1] It is a coastal fish which is found at the mouths of rivers and in lagoons where there are rock and coral substrates at depths between 5 and 500 m (16 and 1,640 ft). this species feeds on zooplankton. phytoplankton ad detritus.[4]

References
  1. Abesamis, R.; Clements, K.D.; Choat, J.H.; et al. (2012). "Acanthurus monroviae". IUCN Red List of Threatened Species. 2012: e.T178023A1524335. doi:10.2305/IUCN.UK.2012.RLTS.T178023A1524335.en. Retrieved 20 November 2021.
  2. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Acanthurus". Catalog of Fishes. California Academy of Sciences. Retrieved 21 September 2023.
  3. J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 497–502. ISBN 978-1-118-34233-6.
  4. Froese, Rainer; Pauly, Daniel (eds.) (2023). "Acanthurus monroviae" in FishBase. June 2023 version.
  5. Sandra Agius Darmanin S.; Noel Vella N. & Adriana Vella (2016). "Genetic, morphometric and meristic analyses of first Acanthurus monroviae specimens recorded in Maltese waters (Central Mediterranean)". Cybium. 40 (4): 338–340. doi:10.26028/cybium/2016-404-010.
  6. Brown, M.E. & Schofield, P.J. (10 September 2020). "Acanthurus monroviae Steindachner, 1896". Nonindigenous Aquatic Species Database. U.S. Geological Survey. Retrieved 21 September 2023.
  7. Atlas of Exotic Fishes in the Mediterranean Sea (Acanthurus monroviae). 2nd Edition. 2021. 366p. CIESM Publishers, Paris, Monaco.https://ciesm.org/atlas/fishes_2nd_edition/Acanthurus_monroviae.pdf
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