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Nemadactylus macropterus, the tarakihi, jackass morwong or deep sea perch, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the south western Pacific Ocean, in Australia and New Zealand. Although there are records from the southern Indian Ocean and southwestern Atlantic, these may be due to misidentifications of similar species.
Nemadactylus macropterus was first formally described in 1801 as Cichla macroptera by the German naturalist Johann Reinhold Forster with the type locality given as New Zealand.[2] In 1839 Sir John Richardson described a new species Nemadactylus concinnus from Tasmania he created the monotypic genus Nemadactylus for it, N. concinnus was later considered to be a synonym of Forster's C. macroptera, making this species the type species of the genus Nemadactylus as Richardson's N. concinnus.[3] The specific name macropterus means "long-winged", a reference to the very elongated seventh ray of the pectoral fins.[4] Genetic and morphological analyses strongly support the placement of Nemadactylus in the family Latridae, alongside almost all of the other species formerly classified in the Cheilodactylidae.[5]
Nemadactylus macropterus has 17 - 18 spines and 25-28 soft rays in its dorsal fin and 3 spines and 14-15 soft rays in its anal fin. It attains a maximum total length of 70 cm (28 in), although 35 cm (14 in) is more typical, and a maximum published weight of 2.9 kg (6.4 lb).[1] This is a large species with an overall silvery colour with a wide black band or crescentic marking which runs from the nape to the base of the pectoral fin. The seventh pectoral fin ray is elongated.[6] The fins are light to dark-greyish without any clear markings. The juveniles are also silvery but have dark bands or blotches on their upper bodies.[7]
Nemadactylus macropterus is definitely found in Australia and New Zealand. In Australia it occurs along the southern coast from Broken Bay, New South Wales to Rottnest Island, Western Australia, its range encompassing Tasmania too.[6] It is widespread in New Zealand, occurring from Cape Reinga to the seas immediately south of the Snares Islands, on the shallower areas on the Chatham Rise and off the Chatham Islands.[7] There are reports of this species from South America and islands in the southern Indian Ocean but it is thought that these may be misidentifications of similar looking congeners.[8] It is found on deep reefs in depths down to 400 m (1,300 ft), although they are known to enter large coastal bays at times.[6]
Nemadactylus macropterus has a maximum lifespan of approximately 35 years, and maturation is obtained at the age of 3-6 years.[9] They spawn from the periods of February to June.[10] The young N.macropterus are found in high density in the inner and mid shelf, while the adults reside on the outer continental shelf.[11] This species has a diet of benthic invertebrates including polychaetes, crustaceans, molluscs and echinoderms.[6] There are known regular spawning aggregations in New Zealand waters and individuals have been known to migrate up to 500 km (310 mi) from their home range to breed.[7]
Nemadactylus macropterus, the tarakihi, jackass morwong or deep sea perch, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the south western Pacific Ocean, in Australia and New Zealand. Although there are records from the southern Indian Ocean and southwestern Atlantic, these may be due to misidentifications of similar species.
Nemadactylus macropterus Nemadactylus generoko animalia da. Arrainen barruko Cheilodactylidae familian sailkatzen da.
Nemadactylus macropterus Nemadactylus generoko animalia da. Arrainen barruko Cheilodactylidae familian sailkatzen da.
Nemadactylus macropterus, conosciuto come Castagnola atlantica[1],è un pesce appartenente alla famiglia Cheilodactylidae.
È stato trovato in alcune isole dell'oceano Indiano, al largo dell'Australia meridionale, in Tasmania, sulla costa atlantica del Sud America, e nella Nuova Zelanda[2] ad una profondità di circa 400 m, su tutti i tipi di fondi.
Presenta un corpo molto compresso lateralmente ed abbastanza allungato. Il colore di base è grigio-argentato, ma sopra sono presenti due fasce più scure sopra l'occhio e dietro la testa. La pinna caudale è profondamente biforcuta. La sua lunghezza è compresa tra 30 e 70 cm[3]. Può raggiungere gli 1,8 kg.
Si nutre di crostacei, policheti, molluschi, echinodermi ed altri invertebrati acquatici[3].
È oviparo e la fecondazione è esterna.
Nemadactylus macropterus, conosciuto come Castagnola atlantica,è un pesce appartenente alla famiglia Cheilodactylidae.
Nemadactylus macropterus is een straalvinnige vissensoort uit de familie van morwongs (Cheilodactylidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1801 door Johann Reinhold Forster.
De vis is van commercieel belang in Australië en Nieuw-Zeeland, waar hij de Morwong, Jackass Morwong of Tarakihi wordt genoemd. Hij komt ook voor in Zuid-Amerika, aan de zuidwestelijke kant van de Atlantische Oceaan. Volwassen vissen zijn 25 tot 35 cm lang.[2]
Bronnen, noten en/of referenties
長鰭線指䱵[1]，為輻鰭魚綱鱸形目鱸亞目唇指䱵科的其中一種。毛利語稱為Tarakihi。分佈於南半球澳洲南部、紐西蘭，以及南美洲南部大西洋海域。
此魚通體銀色，惟在頭後方有一月形黑帶。另外其胸鰭一棘特長，為其特徵。[2]幼年生長在淺水礁石間，成魚游出外海，生活在400公尺的海底。長30至60公分。是一種食用魚，在紐西蘭更是第二大商業魚類，以拖網方式捕撈。二次大戰後年產量為3,500-6,000噸之間。
長鰭線指䱵，為輻鰭魚綱鱸形目鱸亞目唇指䱵科的其中一種。毛利語稱為Tarakihi。分佈於南半球澳洲南部、紐西蘭，以及南美洲南部大西洋海域。
此魚通體銀色，惟在頭後方有一月形黑帶。另外其胸鰭一棘特長，為其特徵。幼年生長在淺水礁石間，成魚游出外海，生活在400公尺的海底。長30至60公分。是一種食用魚，在紐西蘭更是第二大商業魚類，以拖網方式捕撈。二次大戰後年產量為3,500-6,000噸之間。
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