Lethrinus atkinsoni | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Spariformes |
Family: | Lethrinidae |
Genus: | Lethrinus |
Species: | L. atkinsoni |
Binomial name | |
Lethrinus atkinsoni | |
Lethrinus atkinsoni, the Pacific yellowtail emperor,, Atkinson's emperor, reticulated emperor, tricky snapper, Tuamotu emperor, yellow morwong or yellow-tailed emperor is a species of marine ray-finned fish benomging to the family Lethrinidae, the emperor breams and emperors. This fish is found in the Western Pacific Ocean.
Lethrinus atkinsoni was first formally described in 1910 by the American ichthyologist Alvin Seale with its type locality given as Balabac Island in the Philippines. [3] Some authors place the genus Lethrinus in the monotypic subfamily Lethrininae, with all the other genera of Lethrinidae placed in the Monotaxinae, however, the 5th edition of Fishes of the World does not recognise the subfamilies traditionally accepted within the family Lethrinidae as valid. The family Lethrinidae is classified by the 5th edition of Fishes of the World as belonging to the order Spariformes. [4]
Lethrinus atkinsoni has a patronym for its specific name, Seale did not say who he was honouring with the patronym nut it is thought likely to be the illustrator William Sackston Atkinson who prepared plates for Seale. [5]
Lethrinus atkinsoni has a continuous dorsal fin which is supported by 10 apines and 9 fost rays while the anal fin is supported by 3 spines and 8 soft rays. [6] It has a moderately deep body that has a standard length of between 2.3 and 2,6 times its depth. The dorsal profile of the head is clearly convex near the eyes and the snout is short and blunt with a steep, straight profile. [7] This species has a yellow tail and a yellow mark over the eye, it may show a wide yellow longitudinal stripe running along the midflank. The extent of yellow on the caudal peduncle and how much it extends onto the body is variable. [8] This species has a maximum published total length of 50 cm (20 in), although 32.5 cm (12.8 in) is more typical. [6]
This species is widespread throughout the west Pacific Ocean, and is known to live in the waters of Indonesia, the Philippines, New Caledonia, and Japan. [9] [10] [11]
Lethrinus atkinsoni is a reef-associated fish, and is non-migratory. It lives in seagrass beds and over the sandy bottoms of lagoons and the outer slopes of coral reefs. It is found in depths of between 0 and 30 metres, but is most commonly found between 2 and 8 metres. [12] [10]
Lethrinus atkinsoni has been found to be a protogynous hermaphrodite, the males develop from mature females, in some populations and in other populations they are gonochoristic, i.e separate sexes. A clearly defined spawning season was not found off Saipan, although elsewhere spawning peaks in the Spring. 50% of the fish with fork lengths between 20.6 and 21.3 cm (8.1 and 8.4 in) are sexually mature. [13] This species is known to eat plankton, mollusks, crustaceans, and other fishes [12] It may be solitary or found in schools. [10] [11]
Lethrinus atkinsoni is caught as a subsistence fish, commercially, as well as by recreation fishers. [12] Although considered desirable as food, other species in the genus are preferred due to its smaller size. It is caught mainly using handlines, by trawling, and is captured in such nets as the shore seine and gillnet. [11] It is marketed mostly fresh, not frozen. [11] [10]
As with most fish, Lethrinus atkinsoni is the host of many species of parasites. [14] The diplectanid monogenean Calydiscoides rohdei [15] [16] [17] is parasitic on the gills. The gills also harbour unidentified gnathiid isopod larvae. [14] The digestive tract harbours several species of digeneans, including the opecoelids Macvicaria macassarensis [14] and Neolebouria sp. [14] and the acanthocolpid Zoogonus pagrosomi [18] [19] and unidentified tetraphyllid cestodes. [14] The abdominal cavity harbours larvae of the tetrarynch cestode Pseudogilquinia pillersi. [20] In New Caledonia, where its parasites were studied, Lethrinus atkinsoni has a total of six species of parasites. [14]
Lethrinidae are a family of ray-finned fishes belonging to the order Spariformes commonly known as emperors, emperor breams, and pigface breams.
The brownspotted grouper, also known as the brown spotted reef cod, brown-spotted rockcod, coral grouper or honeycomb cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has an Indo-Pacific distribution but in the northern Indian Ocean this distribution is discontinuous. It forms part of a species complex with two closely related species in the genus Epinephelus.
Lethrinus miniatus, the trumpet emperor, redthroat emperor, sweetlip emperor, Sweetlip Swoose, island snapper, yellowmouth perch, yellowmouth snapper, lipper or nannygal, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This species is found the eastern Indo-West Pacific region.
Lethrinus laticaudis, the grass emperor, blue-lined emperor, blue-spotted emperor, brown kelp-fish, brown morwong, brown sweetlip, coral bream, grass sweetlip, grey sweetlip, piggy, red throat, red-finned emperor, snapper bream, squire, sweet-lips or tricky snapper, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish is found in the eastern Indian and western Pacific Oceans.
Epinephelus ongus, the white-streaked grouper, specklefin grouper, lace-finned rock-cod, specklefin rockcod, wavy-lined tock-cod, white-speckled grouper or white-spotted rock-cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has a wide Indo-Pacific distribution and it is found in brackish waters as well as marine reefs.
Calydiscoides euzeti is a species of monogenean of the family Diplectanidae.
Lethrinus is a genus of marine ray-finned fishes belonging to the family Lethrinidae, the emperors and emperor breams. These fishes are mostly found in the Indian and western Pacific Oceans, with a single species in the eastern Atlantic Ocean.
Lethrinus olivaceus, common name longface emperor or long-nosed emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors or emperor breams. This species has a wide Indo-Pacific distribution.
Lethrinus lentjan, the pink ear emperor, redspot emperor, purple ear emperor or purple-headed emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish is found in the Indo-Pacific region.
Lethrinus nebulosus, the spangled emperor, green snapper, morwong, north-west snapper, sand bream, sand snapper, sixteen-pounder, sharie, sheri and yellow sweetlip, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This species is found the Indo-West Pacific region.
Lethrinus rubrioperculatus,the spotcheek emperor, red-eared emperor, red-ears, red-edged emperor, scarlet-cheek emperor, and spot cheek emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors or emperor breams. This species has a wide Indo-Pacific distribution.
Pseudorhabdosynochus is a genus of monopisthocotylean monogeneans, included in the family Diplectanidae. The type-species of the genus is Pseudorhabdosynochus epinepheli .
Calydiscoides is a genus of monopisthocotylean monogeneans, included in the family Diplectanidae.
Lamellodiscus is a genus of monopisthocotylean monogeneans in the family Diplectanidae; all species of Lamellodiscus are small worms, parasitic on the gills of teleost fish.
Hamacreadium cribbi is a species of digenean, parasitic in the lethrinid fish Lethrinus miniatus. The species was collected off New Caledonia.
Lethrinitrema is a genus of monogeneans belonging to the family Ancyrocephalidae. The genus was created by Susan Lim and Jean-Lou Justine in 2011 for parasites of lethrinid fish from New Caledonia. All members of the genus are parasitic on the gills of fish.
Jean-Lou Justine, French parasitologist and zoologist, is a professor at the National Museum of Natural History in Paris, France, and a specialist of fish parasites and invasive land planarians.
Pseudorhabdosynochus youngi is species of diplectanid monogenean parasitic on the gills of the blacktip grouper, Epinephelus fasciatus. It was described in 2009.
Lethrinus crocineus, the yellowtail emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish is found in the Indian Ocean.
Lethrinus amboinensis, the Ambon emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This species is found in the Western Pacific Ocean.