Amamiichthys

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Amamiichthys
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Sparidae
Genus: Amamiichthys
F. Tanaka & Iwatsuki, 2015 [2]
Species:
A. matsubarai
Binomial name
Amamiichthys matsubarai
(Akazaki, 1962)
Synonyms [3]
  • Cheimerius matsubaraiAkazaki, 1962

Amamiichthys is a monospecific genus of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. Its only species is Amamiichthys matsubarai, the Japanese blue-spotted seabream or hosheirenko. This species is endemic to the Amami Islands of southern Japan.

Contents

Taxonomy

Amamiichthys was first proposed as a genus in 2015 by the Japanese ichthyologists Fumiya Tanaka and Yukio Iwatsuki with its only species being Cheimerius matsubarai. [4] C. matsubarai was first formally described in 1962 by Masato Akazaki with its type locality given as off Naze on Amami Ōshima in the Ryukyu Islands off southern Japan. [5] The genus Amamiichthys is placed in the family Sparidae within the order Spariformes by the 5th edition of Fishes of the World . [6] Some authorities classify this genus in the subfamily Denticinae, [7] but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. [6]

Etymology

Amamiichthysis a compound of Amami, the only known location this fish occurs at, and ichthys, meaning fish. The specific name honours the ichthyologist and herpetologist Kiyomatsu Matsubara, who reviewed the monograph in which Akazaki published his original description and thanked him for his teaching and suggestions. [8]

Description

Amamiichthys has 12 spines. the first two spines being very short and the next two being extended almost into filaments, and 10 soft rays supporting its dorsal fin while its anal fin is supported by 3 spines and 8 soft rays. [3] The upper and lower jaws have an outer row of small molar-like teeth and an inner row of, even smaller, molar-like teeth. The colour of the head and body is pinkish, fading to silvery towards the ventral surface with the upper body is marked with small blue spots, some of these overlap with their neighbouring spot. [2] This fish has a maximum published standard length of 60 cm (24 in). [3]

Distribution and habitat

Amamiichthys is known only from the Amami-Oshima in the Ryukyu Islands off southern Japan. It is thought to be restricted to southern Amami-Oshima where it is found on deep reefs at depths between 50 and 100 m (160 and 330 ft). [1]

Fisheries and conservation

Amamiichthys is caught as a food fish and is also taken by recreational fishers, it is sold in fish markets and supermarkets on Amami. It is not one of the main target species for commercial fisheries around the island and its preference for deeper water may protect it from overfishing. However, it has a very restricted range and the International Union for Conservation of Nature classifies its conservation status as Vulnerable. [1]

Related Research Articles

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Sparidae is a family of ray-finned fishes belonging to the order Spariformes, the seabreams and porgies, although they were traditionally classified in the order Perciformes. They are found in shallow temperate and tropical waters around the world and are demersal carnivores.

<i>Acanthopagrus latus</i> Species of fish

Acanthopagrus latus, the yellowfin seabream, grey bream, Houttuyn's yellowfin seabream, Japanese bream or yellow-finned black porgy, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. This fish is found in the Western Pacific Ocean.

<i>Chrysoblephus gibbiceps</i> Species of seabream endemic to South Africa

Chrysoblephus gibbiceps, the red stumpnose, red stumpnose seabream or Miss Lucy, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. This fish is endemic to the southwestern Indian Ocean off the coast of South Africa. The International Union for Conservation of Nature classifies this species as Endangered.

<i>Acanthopagrus</i> Genus of fishes

Acanthopagrus is a genus of marine ray-finned fishes belonging to the family Sparidae, the sea breams and porgies. The fish in this genus are found in the Indian and western Pacific Oceans.

<i>Rhabdosargus</i> Genus of fishes

Rhabdosargus is a genus of ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. These fishes are found in the southeastern Atlantic Ocean and throughout the Indo-West Pacific, although mainly in the western Indian Ocean.

<i>Dentex</i> Genus of fishes

Dentex is a genus of marine ray-finned fishes belonging to the family Sparidae, which includes the seabreams and porgies. The fishes in this genus are found in the eastern Atlantic Ocean and the eastern Indian and Western Pacific Oceans.

<i>Cheimerius</i> Genus of fishes

Cheimerius is a monospecific genus of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. The only species in the genus is Cheimerius nufar, the santer seabream, santer or soldier, of the Indian Ocean.

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<span class="mw-page-title-main">St. Helena white seabream</span> Species of fish

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<i>Argyrozona</i> Species of marine ray-finned fish

Argyrozona is a monospecific genus of marine ray-finned fish belonging to the family Sparidae, the seabreams and progies. Its only species is Argyrozona argyrozona, the carpenter seabream or doppie, which is endemic to the waters off southern South Africa.

<i>Diplodus capensis</i> Species of fish

Diplodus capensis, the Cape white seabream or blacktail seabream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This fish is found around the coasts of Southern Africa.

<i>Argyrops</i> Genus of fishes

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<i>Argyrops bleekeri</i> Species of fish

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<i>Chrysoblephus</i> Genus of fish

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<i>Archosargus pourtalesii</i> Species of fish

Archosargus pourtalesii, the blackspot porgy or Galápagos seabream, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams and porgies. This fish is endemic to the Galápagos Islands in the eastern Pacific Ocean.

Dentex abei, the yellowfin seabream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This species is found in the Western Pacific Ocean in East Asia.

<i>Evynnis</i> Genus of fishes

Evynnis is a genus of marine ray-finned fishes belonging to the family Sparidae, which includes the seabreams and porgies. The genus comprises 4 species, 3 in the Western Pacific Ocean and 1 in the Eastern Atlantic Ocean.

<i>Evynnis tumifrons</i> Species of fish

Evynnis tumifrons, the yellowback seabream, crimson seabream, goldentail or red seabream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This fish is found in the Western Pacific Ocean off the coasts of East Asia. This species is an important food fish in the East China Sea and Japan.

<i>Pachymetopon</i> Genus of fishes

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References

  1. 1 2 3 Iwatsuki, Y.; Shao, K.; Carpenter, K.E. & Holleman, W. (2014). "Cheimerius matsubarai". IUCN Red List of Threatened Species . 2014: e.T170161A1285017. doi: 10.2305/IUCN.UK.2014-3.RLTS.T170161A1285017.en . Retrieved 25 December 2023.
  2. 1 2 Tanaka, F. & Iwatsuki, Y. (2015). "Amamiichthys, a new genus for the sparid fish Cheimerius matsubarai Akazaki 1962, and redescription of the species, with designation of a neotype". Zootaxa. 4007 (2): 195–206. doi:10.11646/zootaxa.4007.2.3. PMID   26623801.
  3. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.). "Amamiichthys matsubarai". FishBase . October 2023 version.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Sparidae". Catalog of Fishes . California Academy of Sciences . Retrieved 26 December 2023.
  5. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Amamiichthys". Catalog of Fishes . California Academy of Sciences . Retrieved 26 December 2023.
  6. 1 2 Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 502–506. doi:10.1002/9781119174844. ISBN   978-1-118-34233-6. LCCN   2015037522. OCLC   951899884. OL   25909650M.
  7. ↑ Parenti, P. (2019). "An annotated checklist of the fishes of the family Sparidae". FishTaxa. 4 (2): 47–98.
  8. ↑ "Order SPARIFORMES: Families LETHRINIDAE, NEMIPTERIDAE and SPARIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. 17 October 2022. Archived from the original on 30 October 2023. Retrieved 26 December 2023.
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