A
Species Profile

Amberjack

Seriola

Built for speed, born to hunt.
GuppyDesign/Shutterstock.com

Amberjack Distribution

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This map shows coastal regions where Amberjack are found.

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The appearance of yellowtail amberjack swimming in the sea. Yellowtail inhabits the waters where the Pacific Ocean and the Kuroshio Current collide with each other, and is caught on average throughout the year

At a Glance

Genus Overview This page covers the Amberjack genus as a group. Stats below are general traits shared across the genus.
Also Known As Yellowtail, Kingfish, Hamachi, Buri, Jack, Trevally
Diet Piscivore
Activity Diurnal+
Lifespan 10 years
Weight 96 lbs
Status Not Evaluated
Did You Know?

"Amberjack" usually means Seriola, but common names vary by region-"yellowtail" can refer to different Seriola species on different coasts/countries.

Scientific Classification

Genus Overview "Amberjack" is not a single species but represents an entire genus containing multiple species.

Amberjacks are fast-swimming, predatory marine jacks (family Carangidae), most commonly the genus Seriola. They are pelagic to semi-pelagic fishes of coastal and offshore waters, valued in commercial and sport fisheries and (for some species) aquaculture.

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Carangiformes
Family
Carangidae
Genus
Seriola

Distinguishing Features

  • Streamlined, torpedo-shaped body built for speed
  • Forked tail; strong caudal peduncle
  • Silvery to bluish/greenish coloration; many show an amber/yellow stripe or yellowish fins (varies by species)
  • Typical Carangidae traits: scutes or hardened scales along parts of the lateral line (varies)
  • Predatory diet (fish, squid, crustaceans) and strong schooling/roaming behavior

Physical Measurements

Males and females differ in size

Length
♂ 3 ft 11 in (1 ft 12 in – 6 ft 3 in)
♀ 3 ft 11 in (1 ft 12 in – 6 ft 7 in)
Weight
♂ 55 lbs (7 lbs – 178 lbs)
♀ 44 lbs (4 lbs – 176 lbs)
Top Speed
37 mph
Burst speeds about 50–70 km/h

Appearance

Primary Colors
Secondary Colors
Skin Type Marine teleost with small, smooth scales and firm, streamlined body; metallic sheen common. Built for fast, sustained swimming (stiff caudal peduncle and deeply forked tail).
Distinctive Features
  • Measurements (genus-wide range): roughly ~50-200 cm total length across the smallest to largest Seriola; weights range from a few kg to ~50-80+ kg in the largest individuals (size varies strongly by species and population).
  • Body shape: fusiform, robust 'torpedo' profile with a narrow caudal peduncle and a deeply forked tail for speed and endurance.
  • Head/markings: many have a noticeable dark diagonal band through or behind the eye; snout and head profile vary (some species appear deeper-bodied or more 'humped').
  • Fins: long second dorsal and anal fins (low, elongate profiles) and often yellow-tinged fins; degree of yellow is highly variable among species/regions and is a major driver of 'yellowtail' naming.
  • Fast-swimming, predatory amberjacks (Seriola) are pelagic to semi-pelagic around reefs, banks, pinnacles, wrecks, and island slopes. Juveniles school; adults may be alone, paired, or loosely grouped.
  • Diet (generalized): primarily fishes and cephalopods (squid), with crustaceans taken opportunistically; prey choice varies by habitat (coastal vs offshore) and local forage availability.
  • Movement/spawning (generalized): many species show seasonal movements and form spawning aggregations in warmer months; timing and migration distance vary widely across the genus and between temperate vs subtropical populations.
  • Lifespan (genus-wide range): commonly ~7-20 years across Seriola species (faster-growing, heavily fished populations may skew shorter; longer-lived species/populations can reach ~15-20+ years).
  • Human context: several Seriola are major sport/commercial targets and some are farmed; heavy fishing pressure can alter size structure, making local 'typical' sizes smaller than the genus' biological maximum.

Sexual Dimorphism

Sexual dimorphism in Seriola is generally subtle and often not reliably visible externally. Where detectable, it is typically size/growth-related (females sometimes attain larger maximum sizes) and seasonal (spawning condition). Degree of dimorphism varies among species and populations.

♂
  • Often mature at smaller sizes/younger ages in some species/populations (not externally obvious without examination).
  • During spawning season, males may appear slightly more streamlined compared with gravid females; external differences are usually minimal.
♀
  • Females in some Seriola can reach larger maximum sizes/heavier body mass.
  • Gravid females may show a noticeably fuller abdomen in spawning season; otherwise external sexing is difficult.

Did You Know?

"Amberjack" usually means Seriola, but common names vary by region-"yellowtail" can refer to different Seriola species on different coasts/countries.

Across the genus, maximum sizes range from roughly 60-70 cm to nearly 2 m, with the largest approaching ~80 kg.

Many Seriola start life schooling in the open water, then increasingly patrol structure (reefs, pinnacles, wrecks, FADs) as they grow.

They're built for speed: a torpedo body and deeply forked tail make them among the hardest-pulling sportfish for their size.

Seriola species occur from warm-temperate to tropical seas-some are ocean-roaming and migratory, others are more coastal/reef-associated.

Several species are major aquaculture fish (e.g., Japanese amberjack and yellowtail kingfish), supplying raw-fish cuisine markets and global seafood trade.

Unique Adaptations

  • Streamlined "cruiser" design: a narrow caudal peduncle and strongly forked tail support sustained, energy-efficient swimming in open water.
  • Countershading (dark above, pale below) reduces visibility from both predators and prey in clear pelagic habitats; several species show subtle bars/stripes when young that fade with age.
  • Large eyes and a well-developed lateral line aid detection of schooling prey and vibrations in low-contrast, midwater environments.
  • Robust jaw and conical teeth suited to gripping slippery, fast prey (fish and squid) rather than crushing hard shells.
  • Flexible habitat use across the genus: members occupy coastal shelves, offshore banks, and open-ocean features-an ecological "generalist predator" blueprint with species-level specializations.

Interesting Behaviors

  • Schooling shifts with age: juveniles commonly form schools in midwater; adults may school loosely, form small hunting groups, or become more solitary depending on species and habitat.
  • Structure association: many individuals hold around reefs, drop-offs, wrecks, and floating objects (FADs), using them as ambush points and navigation landmarks-degree of reliance varies by species and region.
  • High-speed predation: rapid chases and sudden bursts are typical; prey commonly includes schooling fishes (e.g., sardines/anchovies), squids, and crustaceans, with diet differing by local prey availability.
  • Seasonal movement: populations often shift inshore/offshore or along coasts with temperature and spawning cycles; some species are strongly migratory in temperate waters.
  • Pelagic spawning: adults release buoyant eggs into the water column; larvae drift with currents, which helps explain broad ranges and occasional "surprise" appearances far from shore.
  • Social feeding around bait: when prey is abundant, groups may coordinate implicitly-multiple fish herding bait schools toward the surface or structure.

Cultural Significance

Seriola amberjacks are key gamefish and commercial seafood. Seriola quinqueradiata (Japanese amberjack) is important in seasonal Japanese food. Yellowtail and amberjack help coastal jobs, fisheries, and aquaculture. Common names can mean different Seriola species.

Myths & Legends

In Japan, Japanese amberjack is traditionally considered a "promotion fish": as it grows it is called by different names, and it is associated with advancement and good fortune.

In parts of Japan, winter-caught Japanese amberjack has long been treated as a seasonal, auspicious food-featured in New Year and celebratory meals, with regional gifting customs around prized cold-season fish.

Traditional fish-name folklore in Japan preserves local "name-changing" sequences for Seriola (and other fishes), reflecting a cultural belief that growth stages mark life progress and luck.

In Mediterranean coastal cuisine, amberjacks (especially the greater amberjack, Seriola dumerili) are widely regarded as high-quality food fish and are commonly sold in coastal fish markets for fresh preparation (for example, grilling, baking, or stewing).

Conservation Status

NE Not Evaluated (IUCN status is assessed at the species level; the genus Seriola is not assessed as a single taxon)

Has not yet been evaluated against the criteria.

Population Unknown

You might be looking for:

Greater amberjack

38%

Seriola dumerili

Largest and most widely referenced "amberjack"; common in warm-temperate to tropical oceans and important in fisheries.

Yellowtail amberjack (Japanese amberjack/hamachi)

22%

Seriola quinqueradiata

Northwest Pacific species widely known from cuisine and aquaculture (hamachi/buri).

California yellowtail

18%

Seriola dorsalis

Eastern Pacific yellowtail often called an amberjack/yellowtail in sportfishing contexts.

Almaco jack (lesser amberjack)

12%

Seriola rivoliana

Often grouped with amberjacks in fisheries; slimmer body and longer dorsal fin than greater amberjack.

Banded rudderfish

10%

Seriola zonata

Smaller Seriola species; juveniles often associate with floating objects.

Life Cycle

Birth 1000000 frys
Lifespan 10 years

Lifespan

In the Wild
4–20 years
In Captivity
2–20 years

Reproduction

Mating System Polygynandry
Social Structure Aggregation Group
Breeding Pattern Transient
Fertilization Broadcast Spawning
Birth Type Broadcast_spawning

Seriola species are mostly polygynandrous/promiscuous: group broadcast spawning with external fertilization. Eggs are pelagic and larvae drift. Individuals have separate sexes. Spawning is short-lived in temporary groups; no nest building or parental care.

Behavior & Ecology

Social School Group: 8
Activity Diurnal, Crepuscular
Diet Piscivore Schooling baitfish (especially sardine/anchovy-type prey)
Seasonal Migratory 932 mi

Temperament

Active, fast-swimming pelagic-to-semi-pelagic predators; typically bold/inquisitive around structure but can be wary in heavily fished areas.
Opportunistic and competitive at prey concentrations; behavior ranges from loosely cruising to rapid, aggressive burst-feeding when baitfish are present.
Across the genus, social tendency shifts with size/age: juveniles more consistently schooling; many adults more solitary or in small shoals except during feeding events and spawning aggregations.
General size range across Seriola spans from smaller amberjacks/yellowtails (~60-80 cm total length) to the largest species approaching ~180-200 cm; this size spread contributes to variation in grouping, habitat use, and predation risk.
Lifespan varies among species and regions, commonly on the order of ~7-20 years; faster-growing populations often mature earlier and show shorter maximum ages than slower-growing, longer-lived populations.

Communication

Occasional low-frequency thumps/grunts reported in some jacks during spawning/handling; not a primary communication channel and may be subtle or absent in many contexts.
Body posture and orientation changes (accelerations, turns, following/leading) that coordinate movement in shoals/schools.
Visual signaling via rapid shifts in coloration/contrast (e.g., darkening, bar/stripe emphasis) during arousal, dominance interactions, or courtship-extent varies by species and water clarity.
Hydrodynamic cues detected through the lateral line to maintain spacing and synchronize movement, especially in schooling juveniles.
Proximity and circling behaviors during courtship and spawning aggregations; timing and aggregation intensity vary across species and local conditions.

Habitat

Coastal Open Ocean Seabed/Benthic Rocky Shore Coral Reef Kelp Forest Estuary Deep Sea +2
Biomes:
Terrain:
Coastal Island Rocky Sandy Muddy
Elevation: Up to 1181 ft 1 in

Ecological Role

Mid- to upper-trophic-level coastal/offshore predators linking pelagic baitfish resources with reef/shelf ecosystems

Regulate populations of small pelagic and reef-associated fishes and some cephalopods/crustaceans, helping structure midwater food webs Transfer energy and nutrients across habitats (pelagic-reef/shelf coupling via movements and feeding) Serve as important prey for larger predators (e.g., sharks, billfishes, large tunas), supporting higher trophic levels Support human fisheries and, in some regions/species, aquaculture (removal/production influences local food-web dynamics)

Diet Details

Main Prey:
Small pelagic schooling fishes Mackerel Reef-associated fishes Cephalopods Large crustaceans

Human Interaction

Domestication Status

Semi domesticated

Amberjacks (genus Seriola) are wild marine fishes, but some are partly domesticated in aquaculture for yellowtail/kingfish/amberjack farming. Farming uses wild-caught breeding adults or hatchery young fish; fully domesticated lines bred only in farms are rare. People interact through commercial and sport fishing, markets, and farming, with environmental and food-safety concerns.

Danger Level

Moderate
  • Handling injuries: strong, fast fish can cause lacerations/impact injuries; sharp gill covers/teeth and hooks/lines contribute to injury risk during landing and dehooking
  • Foodborne risk in some tropical/subtropical areas: some Seriola can be associated with ciguatera poisoning depending on region and food web exposure (risk varies widely by location/species/size)
  • Low likelihood of unprovoked aggression toward swimmers/divers, but opportunistic strikes on speared/captured fish can occur around fishing activity

As a Pet

Not Suitable as Pet

Legality: Laws vary. Amberjacks (Seriola) are not typical pets. Many places restrict taking or keeping them with fishing rules (permits, seasons, size limits, transport) or ban them without special permits; care needs make home ownership impractical.

Care Level: Expert Only

Purchase Cost: $50 - $1,000
Lifetime Cost: $20,000 - $250,000

Economic Value

Uses:
Commercial fisheries Recreational/sport fishing Aquaculture (farmed yellowtail/kingfish/amberjack in parts of the genus) Seafood trade and processing Public aquarium/display (limited)
Products:
  • fresh and frozen fillets/steaks
  • whole fish for markets
  • sashimi/sushi-grade product in some supply chains
  • value-added products (smoked, prepared portions)
  • aquaculture juveniles/seed stock and grow-out production
  • byproducts (frames/trimmings for stock, pet food, fishmeal/oil in some systems)

Relationships

Predators 6

Related Species 12

Greater amberjack Seriola dumerili Shared Genus
Almaco jack Seriola rivoliana Shared Genus
Japanese amberjack Seriola quinqueradiata Shared Genus
Yellowtail amberjack Seriola lalandi Shared Genus
California yellowtail Seriola dorsalis Shared Genus
Lesser amberjack Seriola fasciata Shared Genus
Banded rudderfish Seriola zonata Shared Genus
Guinean amberjack Seriola carpenteri Shared Genus
Samson fish Seriola hippos Shared Genus
Horse mackerel
Horse mackerel Trachurus Shared Family
Crevalle jacks/trevallies Caranx spp. Shared Family
Amberjacks
Amberjacks Seriola spp. Shared Family

Ecological Equivalents 5

Animals that fill a similar ecological role in their ecosystem

Tunas Thunnus spp. Fast, pelagic to epipelagic pursuit predators that target schooling fish and squid in offshore waters; they co-occur around fronts, reefs, and bait concentrations.
Mackerel Scomberomorus spp. Coastal to offshore, high-speed piscivores that commonly use similar habitats (reefs, ledges, and current lines) and prey on comparable baitfish.
Dolphinfish Coryphaena hippurus Pelagic hunters that often associate with floating structures (FADs); similarly rely on schooling forage fish and squid.
Barracuda
Barracuda Sphyraena spp. Midwater-to-reef-edge predators that ambush or chase fishes in warm-temperate to tropical coastal waters, overlapping in prey and habitat edges.
Yellowfin and giant trevallies Caranx spp. Carangid predators with similar body plan and feeding mode. They can share reefs, wrecks, and nearshore pelagic corridors, though Seriola are often more semi-pelagic/offshore.

Types of Amberjack

9

Explore 9 recognized types of amberjack

Greater amberjack Seriola dumerili
Almaco jack (longfin yellowtail) Seriola rivoliana
Japanese amberjack (yellowtail/hamachi) Seriola quinqueradiata
Yellowtail amberjack Seriola lalandi
California yellowtail Seriola dorsalis
Samson fish Seriola hippos
Lesser amberjack Seriola fasciata
Banded rudderfish Seriola zonata
Guinean amberjack Seriola carpenteri

If you want to try to catch a fish that is powerful as well as delicious, amberjack is a great option. These fish live in both the Atlantic and Pacific oceans and can be caught near reefs or wrecks, where they like to live. These fish can grow quite large, especially the largest species in the genus, the greater amberjack.

Some amberjack species, such as those managed in U.S. waters, are considered a smart seafood choice due to responsible management. However, the greater amberjack population in the Gulf of Mexico is still rebuilding, and harvest is strictly regulated to support recovery. If you enjoy yellowfin tuna, either in fishing or cooking, you should definitely try for amberjack.

5 Amberjack Facts

  • There are nine species of amberjack within the genus.
  • The largest species, the greater amberjack, can grow up to 200 pounds.
  • These fish are popular in fish tacos and other dishes.
  • Amberjacks live in the Pacific and Atlantic oceans.
  • Juvenile amberjacks feed on algae and small organisms.

Classification and Scientific Name

Many species of amberjacks live in both the Pacific and Atlantic Oceans. They all belong to the Seriola genus. There are nine species of amberjacks within the genus. These include:

  • Guinean amberjack (Seriola carpenteri)
  • Greater amberjack (Seriola dumerili)
  • Lesser amberjack (Seriola fasciata)
  • Samson fish (Seriola hippos)
  • Yellowtail amberjack (Seriola lalandi)
  • Fortune Jack (Seriola peruana)
  • Japanese amberjack (Seriola quinqueradiata)
  • Banded rudderfish (Seriola zonata)
  • High-fin jack (Seriola rivoliana)

They are all types of ray-finned fish and part of the Actinopterygii class. This means that their fins are supported by bones that look like rays, rather than more flexible cartilage. Within that class, amberjacks belong to the Carangidae family. Other members of this family include pompanos and other types of jacks. They are the largest in size within their family.

Amberjacks are part of the Carangiformes order. Many fish within this order are popular in sport fishing. Others, such as the Cobia and Dolphinfish, are also great to cook and eat. These fish belong to the Chordata phylum and the Animalia kingdom.

Appearance

Great Amberjack

A greater amberjack has a darker strip down its back, which darkens when under stress or when eating.

Although each species varies slightly in appearance, amberjacks tend to be large, muscular fish. They can grow up to 6 feet long and weigh up to 200 pounds. Most are smaller, around 40 pounds, but still large and powerful. The greater amberjack is often heralded as one of the largest of the family and is popular in sports fishing. Fortunately, it is also a tasty fish to eat and makes a delicious meal. Females tend to be larger than males. This could be due to their tendency to live longer.

Greater amberjacks have a darker strip down their back. It deepens in color based on their mood, becoming more pronounced when they are under stress or when they are eating. They are usually dusky grey with a lighter silvery white belly. They are often the largest of the amberjacks.

As their name suggests, lesser amberjacks are smaller than the other species. They often top out at around 10 pounds. The other species range in size.

Distribution, Population, and Habitat

These fish live in both the Atlantic and Pacific, although not all species call both oceans home. The greater amberjack lives in the Atlantic and Pacific, making it a familiar sight for fishermen on both coasts. They tend to live deeper in the open ocean and require some specialized boating and fishing equipment to reel them in.

When they are young, juveniles live near algae growths in the ocean that provide some protection as well as a source of food. They live in schools, although they dissipate as they mature and grow. Eventually, amberjacks go out on their own. At around 6 months of age, amberjacks move deeper into the ocean. They are found at depths between 60 and 240 feet. They are often seen around shipwrecks and reefs, where their food sources live.

Predators and Prey

When they are young, amberjacks eat plankton and other small organisms that they find in the algae where they live. As they grow, they begin to feed on small fish, crabs, and other marine life on reefs and shipwrecks. Like most species, they are plentiful where their food is located. When fishing for them, it is helpful to study the area first or go with a guide who knows where to find these interesting fish.

Because they are so large and powerful, not many predators can take on an amberjack. Larger fish, such as yellowfin tuna, and some seabirds will go after them. Sharks can also feast on both adults and young. Juveniles are more vulnerable to predators. Their algae home provides some protection. They also enjoy strength in numbers when they are young.

Reproduction and Lifespan of Amberjacks

Females spawn when they are fully mature, usually between 3 and 4 years old. They lay up to 59 million eggs each season. While not all eggs will hatch and mature into a new generation of fish, that is still a lot of babies! They hatch within 3-4 days and spend around one month as larvae. After hatching, they grow rapidly for their first 6 months of life, living in a school with other juvenile amberjacks. Greater amberjacks, one of the more common species, are yellow when they are young.

These fish can live up to 17 years, although closer to 10 is more common. They have been bred in captivity. However, they live and thrive in the wild. There was some history of overfishing, and while management measures are in place to help populations recover, the greater amberjack in the Gulf of Mexico is still rebuilding and not yet considered fully sustainable.

Amberjack in Fishing and Cooking

Japanese Amberjack for Cooking

Japanese amberjack can be grilled, baked, or smoked.

Greater amberjacks are a popular fish for sport fishing, due to their size, muscular body, and location. Adults live in the open ocean, and you will need a deep-sea fishing boat and gear to get them. In some areas, there is a specific season when you can fish for them. This protects them during spawning times and makes sure that the population is well-managed.

When cooking them, you can grill them, bake them, or even smoke them. They have firm white flesh and hold up well to marinades, sauces, and extra ingredients. One amberjack will result in many steaks, so be ready to put some on ice for cooking later. They are a particularly great ingredient in fish tacos. Because they are common in the Gulf of Mexico as well as the Atlantic Ocean, they can be found on many menus in Florida.

Amberjack is higher in mercury than some other species of fish. Due to their large size and long lifespan, mercury can build up in their bodies. When you eat amberjack, this mercury is passed onto you. While they are still safe to eat, you may want to limit your consumption. This is especially important for pregnant and nursing women. You should consult your doctor if you have any concerns about the mercury content before eating this fish. They will likely provide serving recommendations that mirror those for tuna.

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Sources

  1. NOAA Fisheries / Accessed February 8, 2023
  2. University of Florida / Accessed February 8, 2023
Katie Melynn Wood

About the Author

Katie Melynn Wood

Katie is a freelance writer and teaching artist specializing in home, lifestyle, and family topics. Her work has appeared in At Ease Magazine, PEOPLE, and The Spruce, among others. When she is not writing, Katie teaches creative writing with the Apex Arts Magnet Program in Anne Arundel County, Maryland. You can follow Katie @katiemelynnwriter.
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Amberjack FAQs (Frequently Asked Questions)

Yes, Amberjack is popular in cooking due to its mild flavor and firm flesh. It can be prone to some parasites, so make sure that you cook it thoroughly before eating.