Die Grootoog-koningvis (Caranx sexfasciatus) is 'n vis wat voorkom in die Indiese-Pasifiese area, die Rooisee en aan die ooskus van Afrika vanaf Oman tot by Margate. In Engels staan die vis bekend as die Bigeye kingfish.
Die volwasse vis se lyf is blou-groen aan die bokant en silwerig aan die onderkant en het 'n donker kol op die boonste rand van die operkulum. Die tippies van die dorsale en anale vinne het wit punte. Gedurende die broeitydperk is die manlike visse swart van kleur. Die onvolwasse visse is brons geel met 5 - 6 donker vertikale strepe op die lyf. Die vis word tot 1.2 m lank en 18 kg swaar.
Die visse verkies helder water van rots en koraalriwwe om in te leef. Hulle vreet hoofsaaklik vis van die riwwe wat gedurende die nag gejag word en gedurende die dag swem die visse rustig saam in skole. Die visse paar gedurende die lente en somer.
Die Grootoog-koningvis (Caranx sexfasciatus) is 'n vis wat voorkom in die Indiese-Pasifiese area, die Rooisee en aan die ooskus van Afrika vanaf Oman tot by Margate. In Engels staan die vis bekend as die Bigeye kingfish.
Caranx sexfasciatus és un peix teleosti de la família dels caràngids i de l'ordre dels perciformes.[2]
Pot arribar als 120 cm de llargària total i als 18 kg de pes.[3]
Es troba a les costes dels oceans Índic i Pacífic: des del Mar Roig i l'Àfrica Oriental fins a Hawaii, sud del Japó, Austràlia i Nova Caledònia. També des del sud-oest de la Baixa Califòrnia i el Golf de Mèxic fins a l'Equador, incloent-hi les Illes Galápagos.[3]
Mirah mata (nan Latèn: Caranx sexfasciatus) nakeuh saboh jeunèh eungkôt nyang na di la’ôt Acèh. Eungkôt nyoe kayém geudrop lé ureueng keumawé keu geupeubloe.[1]
Mirah mata (nan Latèn: Caranx sexfasciatus) nakeuh saboh jeunèh eungkôt nyang na di la’ôt Acèh. Eungkôt nyoe kayém geudrop lé ureueng keumawé keu geupeubloe.
The bigeye trevally (Caranx sexfasciatus), also known as the bigeye jack, great trevally, six-banded trevally and dusky jack, is a species of widespread large marine fish classified in the jack family Carangidae. The bigeye trevally is distributed throughout the tropical waters of the Indian and Pacific Oceans, ranging from South Africa in the west to California and Ecuador in the east, including Australia to the south and Japan in the north. The bigeye trevally is best distinguished by its colouration, having a dark second dorsal fin with a white tip on the lobe, and also possessing a small dark spot on the operculum. Other more detailed anatomical features also set the species apart from other members of Caranx. The species is known to grow to a length of 120 cm and 18 kg.
It is predominantly an inshore fish, inhabiting reefs down to depths of around 100 m in both coastal zones and offshore islands, often venturing into estuaries and sandy bays as juveniles. The bigeye trevally is commonly found in large slow moving schools during the day, becoming active at night when it feeds, taking a variety of fish, crustaceans, cephalopods and other invertebrates. The fish is known to move from a more crustacean dominated diet as a juvenile to a nearly completely fish dominated diet as an adult. Sexual maturity is reached at 42 cm, with spawning occurring in large aggregations occurring at different periods throughout its range, generally between July and March. The bigeye trevally is of moderate importance to fisheries throughout its range, and being of high importance to some artisanal fisheries. It is taken by gill net, purse seine, hook and line and other artisanal fishing methods. It is rated as a fair to good table fish. The species is also considered a good gamefish, taken by lure, bait and spear throughout its range.
The bigeye trevally is classified within the genus Caranx, one of a number of groups known as the jacks or trevallies. Caranx itself is part of the larger jack and horse mackerel family Carangidae, which in turn is part of the order Carangiformes.[3]
Prior to its description in 1825, the species was often confused with the similar-looking Atlantic species Caranx hippos, and its synonym Caranx carangus.[2] The species was first properly scientifically described by the French naturalists Jean René Constant Quoy and Joseph Paul Gaimard in 1825 from a specimen collected off Waigeo, Indonesia which was designated to be the holotype.[4] They named the species Caranx sexfasciatus which the species is still currently accepted as, with the specific epithet meaning 'six banded' in relation to its juvenile colouration.[5] Following this, the species was independently redescribed and named around fifteen times, and incorrectly broken into two subspecies. In his massive ichthyological volume entitled Histoire Naturelle des Poissons, Georges Cuvier managed to assign no less than four junior synonyms to the species,[6] while the most recent renaming was by Yojiro Wakiya in 1924, who applied the name Caranx oshimai. The two subspecies proposed were Caranx sexfaciatus elacate and Caranx sexfaciatus marginatus, both based on prior descriptions by Jordan and Evermann, and Gill respectively.[2] All names except Caranx sexfasciatus are considered junior synonyms under ICZN rules and discarded.
The common name preferred by most authorities is 'bigeye trevally', 'bigeye kingfish', 'bigeye crevalle jack' or bigeye jack', with other names used including 'great trevally', 'six-banded trevally' and 'dusky jack'.[2]
The bigeye trevally is one of the larger members of Caranx, growing to a maximum recorded size of 120 cm in length and 18.0 kg in weight.[2] It is similar to most other jacks in having a compressed, oblong body, with the dorsal profile slightly more convex than the ventral profile, particularly anteriorly. The snout is slightly pointed, and is greater in length than the eye diameter.[7] The dorsal fin is in two distinct sections; the first consisting of 8 spine and the second of 1 spine and 19 to 22 soft rays. The anal fin consists of 2 anteriorly detached spines followed by 1 spine and 14 to 17 soft rays. The pelvic fins consists of 1 spine and 17 to 18 soft rays,[8] while the caudal fin is strongly forked and the pectoral fin falcate.[9] The species lateral line is moderately arched anteriorly, with 49 to 50 scales in this section, while the straight section contains 0 to 3 scales and 27 to 36 strong scutes. The breast is completely covered in scales. The species has well-developed adipose eyelids, while its dentition consists of an outer row of widely spaced canine teeth and an inner band of villiform teeth in the upper jaw, with a row of widely spaced conical teeth on the lower jaw. The bigeye trevally has 21 to 25 gill rakers and 25 vertebrae.[7]
The bigeye trevally shows a change in colour as it ages, changing both overall colour and body patterns. Juveniles are a silvery yellow to silvery brown in colour, and possess five to six dark vertical bands on their sides,[8] from which the specific epithet sexfasciatus arose. As they mature, the bands fade and become indistinct and the overall colour shifts to a silvery blue above and whitish below.[8] In adults, the bars are completely absent[8][10] and the dorsal colour is a silvery olive to blue green, fading to silvery white below. In juveniles, the fins are pale grey to yellow with darker edges, becoming darker overall in adulthood, with the anal and caudal fins yellow to black and the second dorsal fin olive to black. The tip of the second dorsal fin has a distinctive white tip. The bigeye trevally also has a small dark opercular spot on the upper margin.[7][11]
The bigeye trevally is widely distributed throughout the tropical and subtropical waters of both the Indian and Pacific Oceans.[11] In the Indian Ocean, it ranges from South Africa and Madagascar in the west, along the east African coastline up to both the Red Sea and Persian Gulf.[9] Its range extends east along India, South East Asia, Indonesia and many offshore Indian Ocean islands.[2] The range extends north to Japan and south to Australia[12] in this central Indo-pacific region. In the Pacific Ocean, the bigeye trevally inhabits most of the tropical island groups including Hawaii,[13] with its range extending east to the western American coastline. In this eastern region of its distribution it has been recorded from the American state of California in the north,[14] including the Gulf of California, and south to Ecuador and the Galapagos Islands.[11]
The bigeye trevally predominantly live in inshore coastal waters, although does occur in pelagic settings far offshore, and around remote islands and seamounts. The species is known to reach depths of around 100 m.[2] It is mostly found over coral and rocky reef complexes as adults, however often moves into more inshore areas in sandy bays and lagoons in small numbers.[15] Those that live offshore often live on deeper seamounts or reefs around offshore islands. The species moves with the tide in some regions, entering shallow lagoonal areas as the tide rises, and moving back to the deeper reefs as it retreats.[15] Juveniles inhabit more inshore, shallower waters around the coast, often venturing into lagoons, tidal flats, mangrove zones[16] and even estuaries.[17] Juvenile bigeye trevally have been reported in rivers from several locations, and are known to penetrate well into the upper reaches of rivers.[18][19] As the fish grows, it moves back to deeper waters over reefs. The species has been reported in pelagic open ocean settings, milling around stationary buoys, indicating the species may follow floating debris far out to sea.[20]
The bigeye trevally is a schooling species, known to form aggregations consisting of more than 1500 fish.[21] The species is often seen in these large schools either stationary or slowly moving around the reef complexes they inhabit during the day. At night, these schools dissolve, and the species become active, taking most of its prey during the nocturnal period.[9] This contrasts to most jacks, which are generally diurnal hunters, although the species has been documented hunting in shallower waters during the day, especially as juveniles. The abundance of the species on the west coast of America has been linked to the occurrence of El Niño or La Niña climate events, with the abundance significantly dropping during El Niño events.[22]
The bigeye trevally is a fast-swimming predatory species that has had several studies determine its diet in various places throughout its distribution. As mentioned above, the species is mostly inactive during the day, and feeds at dusk and through the night.[9] The large stationary aggregations break off as the fish move off to hunt in small groups or individually.[5] The species predominantly takes small fish as prey,[5][23] however supplements its diet with a varied array of invertebrates. These include crustaceans such as shrimps, decapods, copepods and stomatopods, cephalopods, gastropods, jellyfish, sponges and even species of open ocean sea-skater insects.[18][24] Bigeye trevally were found to be the primary fish predators of these sea-skates, and took far more of these than any other species of carangid. Evidence from South African estuaries indicates there is a shift in the species diet as it grows. Young fish below 200 mm in length take mostly the juveniles of other fish species but still have a significant intake of penaeid shrimps, while fish larger than this take small fish nearly exclusively.[18] The larger fish on reefs tend to move between these reefs regularly, which is thought to be due to prey availability.[21] Bigeye trevally are also an important prey for larger species, ranging from sharks and larger species of carangid[2] to sea lions and various birds.
The bigeye trevally reaches sexual maturity at a length of around 42 cm, with both males and females reaching maturity at a similar length and age.[25] Spawning is known to occur between July and September in the east Pacific[21] and in November to March in South Africa,[5] indicating variation across the species range. There is also evidence that spawning may occur during new moon periods.[26] Fish aggregate in large schools prior to spawning, with pairs breaking off the main aggregation to commence spawning.[27] The pair increase their swimming speed to leave the school, with the fish underneath instantly changing colour to a dark black, with this individual also known to chase off any other individuals that approach the pair.[21] The trevally then press their ventral surfaces together to spawn, often swimming almost horizontally, before returning to the school and changing back to their normal silvery colour.[27]
The larvae of bigeye trevally have been extensively described, with defining features being a conspicuously pigmented supraoccipital crest, relatively deep body and an anal fin ray count of 15 to 17, the lowest of any east Pacific carangid.[28] There has been little research into the later stages of growth and their rates. Juveniles are known to inhabit either inshore habitats such as estuaries, with an influx of these small fish after spawning in South Africa,[18] while in other cases juveniles have been found living pelagically around floating objects.[26]
There has been one documented hybrid involving the bigeye trevally, a cross between C. sexfasciatus and C. melampygus (bluefin trevally), taken from the waters of Kane'ohe Bay, Hawaii.[29] The specimen was initially thought to be a bigeye trevally, however a lack of the black opercular spot, light coloured scutes and a smaller than normal eye led to the specimen being examined in more detail. DNA analysis confirmed a hybrid between C. sexfasciatus and C. melampygus, which has been difficult to explain due to the two species vastly different lifestyles and spawning characteristics.[29]
As all fish species, the bigeye trevally harbours parasites. These include Monogeneans, Digeneans, Acanthocephalans, Nematodes, Copepodes, and Isopodes; of these, the protomicrocotylid monogenean Neomicrocotyle pacifica is the more abundant.[30]
The bigeye trevally is of varying importance to both commercial and recreational fisheries throughout its range, with the large school sizes allowing for large catches in some regions. In many regions the species is lumped with other jacks in fishery statistics, and therefore worldwide catch is nearly impossible to estimate. Known recent annual catches include those of Saudi Arabia (615–638 t),[2] Mexico (900 t),[21] and Hawaii (297 lb).[13] The species is especially important in fisheries based around coral reefs, with one such fishery in Papua New Guinea showing bigeye trevally are the most frequently taken carangid, and one of the top five most important species overall.[31] It is also of high importance in small artisanal and subsistence fisheries, for which statistics are not kept. Bigeye trevally are taken by a number of methods including hook and line, gill nets, purse seines and various other netting methods.[7] Due to their nocturnal hunting nature, a popular way to catch large numbers involves illuminating the water surface at night, and using hook and line to catch the fish attracted by the light.[7] The species is sold fresh, dried and salted at market.[32]
The bigeye trevally is also popular with anglers, with the species rated as an excellent gamefish in larger sizes. The species is commonly taken by boat fishermen over reef complexes, however schools often hang around jetties and wharves, allowing for frantic fishing when the fish are on the bite, especially after dusk.[33] The species is also occasionally taken from beaches, but rarely in large quantities. Common techniques for catching the fish include bait fishing, which can involve both live or dead bit including fish, squid or various crustaceans, or lure fishing. Bigeye trevally are known to accept many lure types including bibbed lures, surface poppers and metal slugs jigged in rapid retrieve from the ocean floor.[33] Soft plastic lures are known to take the species, as are saltwater fly patterns.[34] In larger sizes, gear must be robust and well maintained to land the fish. The IGFA maintains a full set of line class and tippet records for the bigeye jack. The all tackle world record stands at 14.30 kg (31 lb 8 oz) caught off Poivre Island in the Seychelles.[35]
The bigeye trevally's edibility is said to range from fair[12] to very good,[33] with frying, steaming, grilling and even use in soup popular in some South East Asian countries.[32] Filipinos are said to consider the fish of high quality, especially fish taken from the volcanic Lake Taal, which are said to have a delicate flavour due to the lake's sulphur content.[32] Apart from fishing, the species is popular with scuba divers which often photograph the huge schools that mill around reefs during the day. Bigeye trevally have also been held in large saltwater aquaria, however require large tank volumes to survive.[36]
The bigeye trevally (Caranx sexfasciatus), also known as the bigeye jack, great trevally, six-banded trevally and dusky jack, is a species of widespread large marine fish classified in the jack family Carangidae. The bigeye trevally is distributed throughout the tropical waters of the Indian and Pacific Oceans, ranging from South Africa in the west to California and Ecuador in the east, including Australia to the south and Japan in the north. The bigeye trevally is best distinguished by its colouration, having a dark second dorsal fin with a white tip on the lobe, and also possessing a small dark spot on the operculum. Other more detailed anatomical features also set the species apart from other members of Caranx. The species is known to grow to a length of 120 cm and 18 kg.
It is predominantly an inshore fish, inhabiting reefs down to depths of around 100 m in both coastal zones and offshore islands, often venturing into estuaries and sandy bays as juveniles. The bigeye trevally is commonly found in large slow moving schools during the day, becoming active at night when it feeds, taking a variety of fish, crustaceans, cephalopods and other invertebrates. The fish is known to move from a more crustacean dominated diet as a juvenile to a nearly completely fish dominated diet as an adult. Sexual maturity is reached at 42 cm, with spawning occurring in large aggregations occurring at different periods throughout its range, generally between July and March. The bigeye trevally is of moderate importance to fisheries throughout its range, and being of high importance to some artisanal fisheries. It is taken by gill net, purse seine, hook and line and other artisanal fishing methods. It is rated as a fair to good table fish. The species is also considered a good gamefish, taken by lure, bait and spear throughout its range.
Caranx sexfasciatus es una especie de peces de la familia Carangidae en el orden de los Perciformes.
Los machos de esta especie, conocida vulgarmente como jurel plateado, jurel colinegro, jurel ojón o jurel voraz, pueden llegar alcanzar los 120 cm de longitud total y los 18 kg de peso.[1]
Se encuentra en las costas de los océanos Índico y Pacífico: desde el Mar Rojo y el África Oriental hasta Hawái, sur del Japón, Australia y Nueva Caledonia. También desde el suroeste de la Baja California y el Golfo de México hasta Ecuador, incluyendo las Islas Galápagos.
Caranx sexfasciatus es una especie de peces de la familia Carangidae en el orden de los Perciformes.
Caranx sexfasciatus Caranx generoko animalia da. Arrainen barruko Carangidae familian sailkatzen da.
Espezie hau Agulhasko itsaslasterran aurki daiteke.
Caranx sexfasciatus Caranx generoko animalia da. Arrainen barruko Carangidae familian sailkatzen da.
Carangue à gros yeux
Caranx sexfasciatus, communément nommée Carangue à gros yeux, est une espèce de poissons marins démersale de la famille des Carangidae.
Caranx sexfasciatus est un poisson de moyenne taille pouvant atteindre 120 cm de long, toutefois la taille moyenne est de 60 cm[2]. Le corps a un profil ovale et allongé, comprimé latéralement, doté de deux nageoires dorsales. Le pédoncule caudal est étroit et renforcé par des scutelles. La nageoire caudale est fourchue[2].
La livrée est globalement gris argenté avec une nuance claire pour la partie ventrale. Une petite tache noire orne la partie supérieure de l'opercule. L’œil est de taille relativement grande avec un iris gris. Le lobe de la deuxième nageoire dorsale et de la nageoire anale sont marqués par un point blanc. La nageoire anale et la nageoire caudale sont légèrement jaunâtres[3].
Banc de carangues aux gros yeux
Un banc de Caranx sexfasciatus près de la Grande Barrière. Aout 2016.
A la Réunion.
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La Carangue à gros yeux fréquente les eaux tropicales et subtropicale de l'océan Indien, mer Rouge incluse, jusqu'aux côtes orientales de l'océan Pacifique[4].
Elle affectionne les lagons, les pentes externes des lagons, des récifs coralliens et rocheux ainsi que les secs et les passes entre la surface et 146 m de profondeur[5]. Les juvéniles évoluent en groupe dans les eaux peu profondes et calmes des estuaires et des zones portuaires, et tolèrent bien les eaux saumâtre, remontant parfois les rivières.
Caranx sexfasciatus se nourrit de poissons et de crustacés benthiques[2].
Durant la journée, ces carangues se regroupent en bancs en position stationnaire dans les coins de passes ou à l'extérieur des récifs barrière. Elles se dispersent la nuit, pour chasser et s'alimenter.
Ces carangues sont généralement pêchées la nuit, à la traine ou à la ligne de fond avec un appât vivant, mais très rarement au filet. Les pêcheurs sous-marins peuvent les attirer en émettant un bruit de gorge particulier. La capture d'un congénère par un pêcheur sous-marin les pousse à s'approcher.
Elles sont commercialisées fraiches, congelées, séchées ou salées. En Polynésie française, leur chair est considérée comme rarement empoisonnée (ciguatera), et ne semble présenter aucun danger particulier.
Carangue à gros yeux
Caranx sexfasciatus, communément nommée Carangue à gros yeux, est une espèce de poissons marins démersale de la famille des Carangidae.
Caranx sexfasciatus is een straalvinnige vissensoort uit de familie van horsmakrelen (Carangidae).[2] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1825 door Quoy & Gaimard.
De soort staat op de Rode Lijst van de IUCN als niet bedreigd, beoordelingsjaar 2009. De omvang van de populatie is volgens de IUCN dalend.[1]
Bronnen, noten en/of referenties
Karanks smugowy[3], karanks półżółty[4] (Caranx sexfasciatus) – gatunek ryby okoniokształtnej z rodziny ostrobokowatych (Carangidae), zamieszkującej wody regionu infopacyficznego i Morza Czerwonego, bytującej na głębokości do 146 m. Osiąga długość 120 cm i masę ciała 18 kg. Żywi się rybami i skorupiakami.
Karanks smugowy, karanks półżółty (Caranx sexfasciatus) – gatunek ryby okoniokształtnej z rodziny ostrobokowatych (Carangidae), zamieszkującej wody regionu infopacyficznego i Morza Czerwonego, bytującej na głębokości do 146 m. Osiąga długość 120 cm i masę ciała 18 kg. Żywi się rybami i skorupiakami.
Cá khế sáu sọc hay cá háo sáu sọc[1], tên khoa học Caranx sexfasciatus, là một loài cá biển trong họ Carangidae. Loài này thường phân bổ ở các vùng biển ấm từ Ấn Độ Dương đến Thái Bình Dương.
Bài viết chủ đề bộ Cá vược này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Cá khế sáu sọc hay cá háo sáu sọc, tên khoa học Caranx sexfasciatus, là một loài cá biển trong họ Carangidae. Loài này thường phân bổ ở các vùng biển ấm từ Ấn Độ Dương đến Thái Bình Dương.
六帶鰺（学名：Caranx sexfasciatus），俗名為甘仔魚、紅目瓜仔，為輻鰭魚綱鱸形目鱸亞目鰺科的其中一個種。
本魚廣泛分布於印度太平洋區，包括紅海、東非、馬達加斯加、、阿拉伯海、模里西斯、斯里蘭卡、印度、孟加拉灣、波斯灣安達曼群島、馬爾地夫、日本、台灣[1]、中國沿海、菲律賓、印尼、越南、馬來西亞、澳洲、所羅門群島、密克羅尼西亞、諾魯、馬里亞納群島、馬紹爾群島、薩摩亞群島、復活節島、加拉巴哥群島、夏威夷群島、法屬波里尼西亞、新喀里多尼亞、庫克群島、羅德豪島、美國加利福尼亞州、墨西哥、厄瓜多、巴拿馬、智利、秘魯的沿岸等海域。
水深0~100公尺。
本魚幼魚體側有5~6條暗色橫帶；側線開始處上方有一黑色鰓蓋斑。極大的老成魚全身黑色。第一背鰭有硬棘9枚，1枚隱於背部，有鰭膜相連，第二背鰭有軟條18~21枚；臀鰭有硬棘3枚，1枚隱於臀部，軟條14~15枚，為灰色或黃色；側限直走不約在第二背鰭第六枚軟條下方；稜鱗較粗大者約有24~30枚。脂性眼瞼只掩蓋之後半部；上頜齒為一狹帶，外列齒較強大，下頷齒前方有犬齒。體長可達78公分。
本魚的幼魚常在河口的感潮帶聚集，如果河水清澈，甚至會游至淡水水域中。30公分以上的成魚即遠離沿岸水域，但是秋季的成魚有較接近岩岸的趨勢，常數十尾至數百尾成一大群游動。肉食性，主食為魚類、甲殼類為食。
美味無腥臭的魚，清蒸要加臘肉或肥豬肉，紅燒不宜太乾，否則肉變硬。
分類 界 : 動物界 Animalia 門 : 脊索動物門 Chordata 亜門 : 脊椎動物亜門 Vertebrata 綱 : 条鰭綱 Actinopterygii 目 : スズキ目 Perciformes 亜目 : スズキ亜目 Percoidei 科 : アジ科 Carangidae 亜科 : アジ亜科 Caranginae 属 : ギンガメアジ属 Caranx 種 : ギンガメアジ C. sexfasciatus 学名 Caranx sexfasciatusギンガメアジ（銀紙鯵、銀亀鯵、銀河目鯵、学名 Caranx sexfasciatus ）は、スズキ目アジ科に分類される魚の一種。インド洋・太平洋の熱帯・亜熱帯海域に分布する大型のアジである。海水魚だが若魚は河川の純淡水域までも侵入する。食用にもなる。
標準和名「ギンガメアジ」は長崎での呼称に因み、銀色の体表が銀紙を張ったように見えることから「銀紙鯵」と表記する。しかし釣りやスクーバダイビング等においては「銀河目鯵」の字を充てる人も多い。
生鮮魚介類として流通する場合にはヒラアジの名称も用いられるが、ヒラアジはギンガメアジ属の総称として用いられる[1]。日本での地方名としてはヒラアジ（各地）のほか、ヒラジ（浜名湖沿岸）、メッキ（和歌山、体色から）、ナガエバ（高知）、エバ（高知・鹿児島）、ゼンメ、ガツン（鹿児島）、クチミチャー（沖縄）等があるが、これらは本種のみならず扁平な体型の大型アジ類の総称として用いられる[2][3][4][5][6][7]。
学名の種名"sexfasciatus"は「6本の帯がある」という意味で、幼魚の横縞模様に由来する。英名"Bigeye trevally"は、大型アジ類の中でも特に眼が大きいことに因む。
成魚は全長80-90cmに達し、全長120cm・体重18kgの記録もあるが、九州以北で漁獲されるのは25cm程度までが多い[2][8]。成魚の体は長楕円形で体高が高く、側扁する。体色は背が暗青緑色、体側から腹は銀白色をしている。また鰓蓋上部に小黒斑がある。眼は口のすぐ上にあって大きく、脂瞼も発達する。吻は眼径よりやや長い程度だが、がっしりしている。胸鰭・第二背鰭前端・臀鰭前端は鎌状に伸びる。鰭条数は第一背鰭8棘・第二背鰭1棘19-22軟条・臀鰭2遊離棘1棘14-17軟条である。胸部に無鱗域はない。側線は第二背鰭第6-7軟条下から直走し、直走部には黒く大きな稜鱗（俗称「ぜいご」「ぜんご」）が27-36枚並ぶ。
全長数cmの幼魚は金色の地に6-7本の黒っぽい横帯が入る。また全長に比して体高が高く寸詰まりな体型をしていて、成魚とは外見が異なる。成長に従って黄色み、次いで横縞が消え、体が前後に細長くなる[9][10]。
ミナミギンガメアジ C. tille は本種とよく似ているが、吻が丸いこと、稜鱗が黒くないことで区別できる[11]。他にもロウニンアジ、オニヒラアジ、カスミアジ、カッポレ等多くの同属種がいるが、本種より眼が小さいこと、鰓蓋上部に黒斑がないこと、体色が異なること等で区別できる[5][9]。
インド洋と太平洋の熱帯海域に分布する。所謂インド太平洋のみならずバハ・カリフォルニア半島からエクアドル沿岸までの東部太平洋にも分布している。またハワイではカスミアジとの交雑個体が報告されている。日本では南日本の暖流に面した海域に見られ、温暖な南西諸島沿岸で個体数が多い[4][7][8][9]。関東地方以北にも暖流に乗って稚魚がやって来るが、これらの大部分は「死滅回遊」（無効分散）となり、冬の寒さを乗り切れず死んでしまう。但し工場等から温かい排水がある水域では生き残ることもある[5]。
成魚は沿岸の水深200mまでのサンゴ礁・岩礁域周辺に生息し、単独か群れで行動する。昼は群れでサンゴ礁周辺に留まっていることが多く、夜に餌を探す。食性は肉食で、小魚や甲殻類を捕食する[8][9]。
産卵期は4-7月で、海域で分離浮遊卵を産卵する。卵から孵化した稚魚は流れ藻に付くものもいるが、全長3cm程度から沿岸に定着し、内湾や汽水域で成長する。中には河川を遡上し純淡水域まで進入するものもいる。インド太平洋産のギンガメアジ属の中では、ロウニンアジやオニヒラアジの幼魚も汽水域まで侵入するが、本種のように純淡水域まで入ることはない。淡水域ではアユ、オイカワ、カワムツ、ヨシノボリ類などの淡水魚やエビ類を捕食している[3][5][7]。成長すると海のサンゴ礁域へ移る。
他のギンガメアジ属と同様に釣りや定置網等で漁獲され、食用となる。若魚・成魚ともルアーをよく追うため、釣りの対象としての人気もある。身はよく締まり、刺身、煮付け、唐揚げ等で食べられる。但し、本種はシガテラ中毒の報告があるので、熱帯海域産の大型個体は食べないよう注意が必要である。
食用以外にも、サンゴ礁域に棲む成魚はスクーバダイビング（スキューバダイビング）における観察対象にもなっている[5][7][8][9]。
ギンガメアジ（銀紙鯵、銀亀鯵、銀河目鯵、学名 Caranx sexfasciatus ）は、スズキ目アジ科に分類される魚の一種。インド洋・太平洋の熱帯・亜熱帯海域に分布する大型のアジである。海水魚だが若魚は河川の純淡水域までも侵入する。食用にもなる。
