dcsimg

Diagnostic Description

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Large dark ocellus on 1st dorsal fin (Ref. 4329).
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Recorder
Cristina V. Garilao
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Life Cycle

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Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).
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Susan M. Luna
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Morphology

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Dorsal spines (total): 8; Dorsal soft rays (total): 8; Analspines: 2; Analsoft rays: 8
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Cristina V. Garilao
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Biology

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Minimum depth reported taken from Ref.57178.
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Pascualita Sa-a
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Jaydia queketti

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Jaydia queketti, the spotfin cardinal or signal cardinalfish, is a species of ray-finned fish from the Indian Ocean, it is a member of the family Apogonidae. It has colonised the eastern Mediterranean Sea by way of the Suez Canal since 2004.

Description

Jaydia queketti has a compressed, oblong body which is covered in large scales. It has two dorsal fins, the first one has 7 spines, with the 3rd and 4th being the largest. The soft rays in the dorsal fin are longer than the spines. The anal fin lines up with the 2nd dorsal fin origin. The caudal fin is round. The pelvic fin lies directly underneath and in line with the pectoral fin. The mouth is slightly oblique and reaches back beyond the large eye, which in turn has a diemeter of nearly four times the length of the head. The preopercular edge is smooth. The body colour is grey to off-white, darkening on the back. Dark grey to brown spots on the body form irregular, longitudinal lines. There is a large dark ocellus on the rear edge of the first dorsal fin while the posterior edge of the caudal fin and the lower edge of the anal fin are dark grey to black. The pectoral and pelvic fins are transparent but may be white. Normally 2–12 cm in length but can grow to 15 cm.[2][3]

Distribution

Jaydia queketti occurs in the western Indian Ocean from the Red Sea south to KwaZulu Natal, east to the Persian Gulf and India.[2][3] It was first recorded in the Mediterranean in Iskenderun Bay, Turkey, in 2004 and has since been recorded from there south to Israel[2] and west to the Gulf of Antalya[4] the most likely source of this invasion is by Lessepsian migration through the Suez Canal from the Red Sea.[5]

Biology

Jaydia queketti is a nocturnal species which emerges into the water column at night to feed on zooplankton, hence the large eye, close to the substrate to a depth of 90m. During the day J. queketti hides in rocky habitat.[2] It is a mouthbrooding species and there is some evidence of pairing behaviour.[3]

Taxonomy

Jaydia queketti was named in 1903 by the Scottish ichthyologist John Dow Fisher Gilchrist as a species in the genus Apogon.[1] The genus Jaydia was split from Apogon with J. queketii being part of the carinatus species group along with Jaydia poecilopterus and Jaydia carinatus.[6][7] Gilchrist did not specify who the specific name honours but it is thought to most likely be the conchologist John Frederick Whitlie Quekett (1849-1913) who was a curator of the Durban Natural History Museum.[8]

References

  1. ^ a b "Synonyms of Jaydia queketti (Gilchrist, 1903)". Fishbase. Retrieved 29 January 2017.
  2. ^ a b c d Daniel Golani; Enric Massutí; Lidia Orsi-Relini; Jean-Pierre Quignard; Jakov Dulčić; Ernesto Azzurro (2002). "Jaydia queketti". CIESM Atlas of Exotic Fishes in the Mediterranean Sea. CIESM. Retrieved 29 January 2017.
  3. ^ a b c Pascualita Sa-a; Rodolfo B. Reyes (2016). R. Froese; D. Pauly (eds.). "Jaydia queketti (Gilchrist, 1903)". Fishbase.org. Retrieved 29 January 2017.
  4. ^ Mehmet Gökoğlu; , Mustafa Ünlüsayın; Beytullah Ahmet Balcı; Yaşar Özvarol; Halil Çolak (2011). "Two alien fish in the Gulf of Antalya: Apogon queketti Gilchrist, 1903 (Apogonidae) and Champsodon nudivittis (Ogilby, 1895) (Champsodontidae)". Zoology in the Middle East. 54: 138–140. doi:10.1080/09397140.2011.10648888.
  5. ^ L. Eryilmaz; C. Dalyan (2006). "First record of Apogon queketti Gilchrist (Osteichthyes: Apogonidae) in the Mediterranean Sea (abstract)". Journal of Fish Biology. 69 (4): 1251–1254. doi:10.1111/j.1095-8649.2006.01185.x.
  6. ^ Ofer Gon (1996). "Revision of the cardinalfish subgenus Jaydia (Perciformes, Apogonidae, Apogon)". Transactions of the Royal Society of South Africa. 512 (1): 147–194.
  7. ^ K. Mabuchi; T.H. Fraser; H. Song; Y. Azuma; M. Nishida (2014). "Revision of the systematics of the cardinalfishes (Percomorpha: Apogonidae) based on molecular analyses and comparative reevaluation of morphological characters". Zootaxa. 3980 (2): 286–292.
  8. ^ Christopher Scharpf & Kenneth J. Lazara (31 May 2018). "Order KURTIFORMES (Nurseryfishes and Cardinalfishes)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 21 September 2018.
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Jaydia queketti: Brief Summary

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Jaydia queketti, the spotfin cardinal or signal cardinalfish, is a species of ray-finned fish from the Indian Ocean, it is a member of the family Apogonidae. It has colonised the eastern Mediterranean Sea by way of the Suez Canal since 2004.

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