Deepbody boarfish

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Deepbody boarfish
Adult boarfish (Antigonia capros).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Caproiformes
Family: Caproidae
Genus: Antigonia
Species:
A. capros
Binomial name
Antigonia capros
R. T. Lowe, 1843
Synonyms [2]

The deepbody boarfish (Antigonia capros), or robust deepsea boarfish, is a species of marine ray-finned fish belonging to the family Caproidae, the boarfishes. This fish is found in the warmer waters of the Atlantic, Indian and Pacific Oceans.

Taxonomy

The deepbody boarfish was first formally described in 1843 by the English zoologist Richard Thomas Lowe with its type locality given as Madeira. [3] When he described this species Lowe classified it in the new monospecific genus Antigonia . [4] The 5th edition of Fishes of the World classifies the genus Antigonia in the Antigoniinae, a subfamily of the Caproidae, within the order Caproiformes, [5] as do other authorities. [6] However, other authorities classify this taxon as a family, the Antigoniidae, and classify and the Caproidae in the order Acanthuriformes. [7]

Etymology

The deepbody boarfish has the genus name, Antigonia, and this was not explained by Lowe but it is probably a combination of anti, meaning "against", and goneos, which means "ancestor". This may be reference to how A. capros is so distinctive yet seems to elucidate the ancestry of relayed forms which Lowe felt were randomly classified before he described A. capros. The specific name, capros, means "boar" but is an indicator of its perceived familial relationship with Capros aper . [8]

Description

The deepbody boarfish has a highly compressed, rhomboid shaped body with convex dorsal and ventral profiles. The small head bears bony ridges that radiate, has a concave dorsal profile and a clear crest along the nape. The eyes are large and the mouth is small, upward pointing, opens at the front and has protrusible jaws. The continuous dorsal fin is supported by 8 (occasionally 7 or 9) spines, the third spine being the longest, and between 33 and 37 soft rays. The anal fin has 2 or 3 spines with the first spine being the longest, these are separated from the 29 to 34 soft rays. The long bases of the soft rayed dorsal and anal fins have scaly sheaths. The roundly pointed pectoral fins have a single spine and 12 or 13 fin rays. [9] The overall colour of the body is orange red with 3 dark red vertical bands on the eye, the mid-body and the caudal peduncle. This species has a maximum published total length of 30.5 cm (12.0 in). [2]

Distribution and habitat

The deepbody boarfish is found in tropical and subtropical oceans throughout the world. In the eastern Atlantic it occurs as far north as the Bay of Biscay off France south to South Africa including the Canary Islands and Cape Verde. In the western Atlantic it is found from New England south to Uruguay, including the Caribbean. [2] In the Indo-Pacific it is found from East Africa to Hawaii, north to Japan and south to Australia. [1] It is a demersal fish which is found at depths between 50 and 900 m (160 and 2,950 ft), although it is normally found between 100 and 300 m (330 and 980 ft), [2] over rocky slopes and ledges. [1]

Biology

The deepwater boarfish feeds on zooplankton, small molluscs and crustaceans. It is frequently encountered in large aggregations. The adults are found closer to the bottom and the juveniles in midwater. [2] [1]

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References

  1. 1 2 3 4 Carpenter, K.E.; Robertson, R.; Moore, J. & Munroe, T. (2017) [errata version of 2015 assessment]. "Antigonia capros". IUCN Red List of Threatened Species . 2015: e.T16407132A115355581. doi: 10.2305/IUCN.UK.2015-4.RLTS.T16407132A16509737.en . Retrieved 21 July 2020.
  2. 1 2 3 4 5 Froese, Rainer; Pauly, Daniel (eds.) (2024). "Antigonia capros" in FishBase. February 2024 version.
  3. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Antigonia". Catalog of Fishes . California Academy of Sciences . Retrieved 28 February 2024.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Antigoniidae". Catalog of Fishes . California Academy of Sciences . Retrieved 28 February 2024.
  5. ↑ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. p. 507. ISBN   9781118342336.
  6. ↑ Betancur-R, Ricardo; Wiley, Edward O.; Arratia, Gloria; Acero, Arturo; Bailly, Nicolas; Miya, Masaki; Lecointre, Guillaume; Ortí, Guillermo (2017). "Phylogenetic classification of bony fishes". BMC Evolutionary Biology. 17 (1): 162. doi: 10.1186/s12862-017-0958-3 . ISSN   1471-2148. PMC   5501477 . PMID   28683774.
  7. ↑ "Eschmeyer's Catalog of Fishes Classification". California Academy of Sciences. Retrieved 28 February 2024.
  8. ↑ Christopher Scharpf (6 February 2024). "Order ACANTHURIFORMES (part 2): Families EPHIPPIDAE, LEIOGNATHIDAE, SCATOPHAGIDAE, ANTIGONIIDAE, SIGANIDAE, CAPROIDAE, LUVARIDAE, ZANCLIDAE and ACANTHURIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 28 February 2024.
  9. ↑ "Species: Antigonia capros, Deepbody Boarfish". Shorefishes of the Greater Caribbean online information. Smithsonian Tropical Research Institute . Retrieved 28 February 2024.
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