Argentine seabass | |
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Argentine seabass near the Ilhas Cagarras, Brazil | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Perciformes |
Family: | Serranidae |
Genus: | Acanthistius |
Species: | A. brasilianus |
Binomial name | |
Acanthistius brasilianus (Cuvier, 1828) | |
Synonyms | |
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The Argentine seabass (Acanthistius brasilianus) is a species of seabass in the family Serranidae. [1] It occurs on the South American continental shelf of the western Atlantic Ocean, where it used to be caught commercially for human consumption. [2] [3]
The Argentine seabass was first described by Georges Cuvier as part of his 22-volume work Histoire naturelle des poissons , which he wrote with Achille Valenciennes from 1828 to 1849. [4] [5] He originally named it Plectropoma brasilianum, though it is now considered a synonym of Acanthistius brasilianus. [4] [6] As a result of his participation in first voyage of HMS Beagle, Leonard Jenyns described a fish in 1840 that he named Plectropoma patachonica, and while many of the fishes he observed may have also been Argentine seabass, it is not totally clear whether P. patachonica is a true synonym of A. brasilianus. [4] [7]
The Argentine seabass' genus name, Acanthistius, comes from the Greek akantha (ακανθα), meaning thorn and Greek, istio (ιστίο) meaning sail, which is in reference to the spines along the front of its dorsal fin. [2] [8] The species name, brasilianus, means "Brazilian". This is a reference to where the first specimens to be reported were caught. [4] [5]
The Argentine seabass has a deep, compressed body and is covered in ctenoid scales, which are typical in teleost fishes. The dorsal profile is evenly arched and this arch is traced by the shape of the lateral line, which is covered by between 84 and 98 scales and runs from the upper margin of the operculum to the base of the caudal fin. The Argentine seabass' dorsal fin has 13 spines and 15 soft rays, while its anal fin has only 3 spines and 8 rays. [2] They generally reach maturity when around 29 centimetres (11 in) in length though they have been recorded to lengths of 60 centimetres (24 in). [9]
The Argentine seabass is a rare species, [1] found only in the southwestern Atlantic Ocean, along the coasts of Argentina, Uruguay, and Brazil. [2] They generally inhabit cold waters along the South American continental shelf. [2] Typically marine (they may also be found in brackish waters), Argentine seabass have been reported at depths from 15 metres (49 ft) to 60 metres (200 ft). [1]
Argentine seabass are known to prey upon crabs and small fish. [2] They are in turn eaten by predators such as the Imperial shag. [2]
Argentine seabass are consumed by humans, typically being caught off Argentina and, to a lesser extent, Uruguay. [3] Their meat is generally marketed fresh, frozen or filleted. [2] [3] It is not known whether the Argentine seabass is experiencing any major environmental threats, and the overall population trend for this species is unknown. [1] It is classified as Data Deficient by the IUCN. [1]
Epinephelus is a genus of marine ray-finned fish, groupers from the subfamily Epinephelinae, part of the family Serranidae, which also includes the anthias and sea basses. They are predatory fish, largely associated with reefs and are found in tropical and subtropical seas throughout the world. They are important target species for fisheries.
Acanthistius is a genus of fish. Some authors place the genus in the family Serranidae, while some consider it to be incertae sedis, where it is not clear which family it belongs to.
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Pogonoperca punctata, the spotted soapfish, bearded soapfish or leaflip grouper is a species of marine ray-finned fish, related to the groupers and classified within the subfamily Epinephelinae of the family Serranidae. It is found in the western Indo-Pacific region.
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