Biology:Blackspotted croaker

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Short description: Species of fish

Blackspotted croaker
Protonibea.png
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Sciaenidae
Genus: Protonibea
Trewavas, 1971
Species:
P. diacanthus
Binomial name
Protonibea diacanthus
(Lacépède, 1802)
Synonyms[2]
  • Lutjanus diacanthus Lacépède, 1802
  • (Lacépède, 1802) (Lacépède, 1802)
  • (Cuvier, 1829) Corvina platycephala
  • Pseudosciaena diacanthus Cuvier, 1830
  • Nibea diacanthus (Lacepède, 1802)
  • Eydoux & Souleyet, 1850 Sciaena goma
  • Sciaena diacanthus Tanaka, 1915
  • Johnius diacanthus (Lacépède, 1802)
  • (Lacépède, 1802) Borodin, 1930
  • Sciaena antarctica rex Johnius cataleus
  • Whitley, 1945 Protonibea diacantha
  • Cuvier, 1829 Corvina nigromaculata
  • Johnius valenciennii Corvina catalea

The blackspotted croaker (Protonibea diacanthus), also known in Australia as the black jewfish,[3] is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This fish is found in the Indo-Pacific region. It is the only species in the monospecific genus Protonibea.

Taxonomy

The blackspotted croaker was first formally described in 1802 as Lutjanus diacanthus by the French naturalist Bernard Germain de Lacépède without its type locality being given.[4] In 1971 Ethelwynn Trewavas classified this species in the monospecific genus Protonibea.[5] This taxon has been placed in the subfamily Otolithinae by some workers,[6] but the 5th edition of Fishes of the World does not recognise subfamilies within the Sciaenidae which it places in the order Acanthuriformes.[7]

Catalog of Fishes mentions that the monspecific genus Megalonibea may be a synonym of Protonibea, however, as Protonibea was proposed as a genus by Ethelwynn Trewavas in 1973 that name would be a junior synonym of Megalonibea,[5] and it is treated as such by other authors. If that is the case then the binomial for this species should be Megalonibea diacantha, with Megalonibea fusca being a synonym of M. diacantha.[8]

Etymology

The blackspotted croaker's genus name. Protonibea prefixes protos, meaning "first", with Nibea as its wide range and characteristics suggest that it may be close to the ancestral form of Nibea and related genera. The specific name, diacanthus, means "two spined" as Hamilton originally described this species as a snapper in the family Lutjanidae with 2 spines in the anal fin rather than 3.[9]

Description

The blackspotted croaker has the frontmost pores on its chin very close to the tip of the lower jaw and they are joined by a groove. The swimbladder has a shape like a carrot and has branched appendages along the whole of both its sides but none of these goes through the transverse septum. The dorsal fin is divided by an incision with 9 or 10 spines supporting the fin to the front of the incision and a single spine and 22 to 25 soft rays supporting the fin to the rear of the incision. The anal fin has 2 spines and 7 soft rays supporting it. This species reaches a maximum total length of 180 cm (71 in). There are between 3 and 5 broad dark vertical bands on the body and numerous small black spots on the head, dorsal part of the body and the dorsal and caudal fins. These marking fade as the fish grows larger. The pectoral, pelvic, anal and lower caudal fin are dark.[8]

Distribution and habitat

The blackspotted croaker has a wide Indo-Pacific distribution from the Persian Gulf (where it is considered Least Concern)[10] east into the Pacific Ocean where it extends north to Japan and south to northern Australia. In Australia their range extends from Onslow, Western Australia, around the northern tropical coast as far as Mackay, Queensland.[11] It is found in coastal waters, usually no deeper then 60 m (200 ft), over mud substrates. It occasionally enters estuaries and the tidal reaches of rivers.[1]

Commercial importance

The fish is considered a delicacy, it is prized in East Asia because even though there is no evidence, some people actually think its organs are medicinal. The fish are most expensive in countries like Singapore, Malaysia, Indonesia, Hong Kong and Japan . This fish is known locally as Telia in Odia, and in 2020, fishermen from Odisha caught one weighing around 19.5 kg (43 lb). A pharmaceutical company purchased it ₹8000 per kg in an auction.[12] Similarly in 2019, another fishermen from Odisha caught a 10 kg (22 lb) fish and was sold ₹10,000 per kg.[13] In 2023, Gujarat announced Blackspotted croaker as the state fish.[14]

References

  1. ↑ 1.0 1.1 Sadovy, Y.; Janekikarn, S.; Chao, L.; Mok, H.-K.; Sasaki, K.; Liu, M.; Hoshino, K.; Sakai, T. et al. (2020). "Protonibea diacanthus". IUCN Red List of Threatened Species 2020: e.T49188717A49227587. doi:10.2305/IUCN.UK.2020-1.RLTS.T49188717A49227587.en. https://www.iucnredlist.org/species/49188717/49227587. Retrieved 2 July 2023. 
  2. ↑ Froese, Rainer and Pauly, Daniel, eds. (2023). "Protonibea diacanthus" in FishBase. February 2023 version.
  3. ↑ Boating, fishing and marine > Fish species > Black jewfish Northern Territory Government. Retrieved 20 February 2021.
  4. ↑ Eschmeyer, William N.; Fricke, Ron; van der Laan, Richard, eds. "Species in the genus Protonibea". California Academy of Sciences. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?tbl=species&genus=Protonibea. 
  5. ↑ 5.0 5.1 Eschmeyer, William N.; Fricke, Ron; van der Laan, Richard, eds. "Genera in the family Sciaenidae". California Academy of Sciences. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatget.asp?tbl=genus&family=Sciaenidae. 
  6. ↑ Kunio Sasaki (1989). "Phylogeny of the family Sciaenidae, with notes on its Zoogeography (Teleostei, Peciformes)". Memoirs of the Faculty of Fishes Hokkaido University 36 (1-2): 1–137. https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/21886/1/36(1_2)_P1-137.pdf. 
  7. ↑ 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. https://sites.google.com/site/fotw5th/. Retrieved 2023-07-03. 
  8. ↑ 8.0 8.1 Kunio Sasaki (2022). "Family Sciaenidae Croakers, Drums and Cobs". Coastal Fishes of the Western Indian Ocean Volume 3. South African Institute for Aquatic Biodiversity. pp. 389-414. ISBN 978-1-990951-30-5. https://saiab.ac.za/wp-content/uploads/2022/11/1._wiof_volume_3_text.pdf. 
  9. ↑ Christopher Scharpf; Kenneth J. Lazara, eds (9 March 2023). "Series Eupercaria (Incertae sedis): Families Callanthidae, Centrogenyidae, Dinopercidae, Emmelichthyidae, Malacanthidae, Monodactylidae, Moronidae, Parascorpididae, Sciaenidae and Sillagidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. https://etyfish.org/eupercaria/. 
  10. ↑ Abdulqader, E.; Al-Husaini, M.; Alghawzi, Q.; Almukhtar, M.; Bishop, J.; Carpenter, K.E.; Hartmann, S.; Kaymaram, F. (2015). "Protonibea diacanthus (Persian Gulf assessment)". IUCN Red List of Threatened Species 2015: e.T49188717A57232343. https://www.iucnredlist.org/species/49188717/57232343. Retrieved 11 December 2023. 
  11. ↑ Bray, D.J. (2022). "Protonibea diacanthus". Fishes of Australia. Museums Victoria. https://fishesofaustralia.net.au/home/species/671. 
  12. ↑ "Prize Catch For Odisha Fisherman; Fish Sold At Whopping Rs 1.77 Lakh". 2 October 2020. https://sambadenglish.com/prize-catch-for-odisha-fisherman-fish-sold-at-whopping-rs-1-77-lakh/. 
  13. ↑ "Odisha fisherman sells rare 28-kg ghol fish for Rs 1.5 lakh". 30 March 2019. https://incredibleorissa.com/odisha-rare-ghol-fish/. 
  14. ↑ "‘Ghol’ declared state fish of Gujarat at Global Fisheries Conference, Ahmedabad" (in en). 2023-11-21. https://indianexpress.com/article/cities/ahmedabad/ghol-declared-state-fish-gujarat-global-fisheries-conference-9036238/. 

External links

Wikidata ☰ Q2639323 entry




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