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Gulf Saratoga (Australian Arowana) ( Scleropages jardinii )

Gulf saratoga

A large, pearly-scaled freshwater fish from northern Australia and New Guinea.

Photo: Ginkgo100, CC BY-SA 3.0, via Wikimedia Commons

The Gulf saratoga is a robust freshwater bony fish native to Australia and New Guinea. It features distinctive pearly scales and grows up to 90 cm. This species is popular in aquariums and is not currently considered threatened.

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  • Grows up to 90 cm and weighs over 17 kg
  • Female broods young in her mouth
  • Has seven rows of pearly, spotted scales
  • Native to northern Australia and New Guinea
  • Often mistaken for Asian arowana in trade

What it is

The Gulf saratoga is a long, dark-coloured freshwater fish with a robust body. Its depth is about a quarter of its length, making it stockier than related species. The fish displays seven rows of large scales, each marked with reddish or pinkish spots in a crescent shape. This pattern creates a pearly sheen. It has large, wing-like pectoral fins. Adults typically reach 90 cm in length and can weigh over 17 kg. It belongs to the basal teleost group Osteoglossinae.

Where it lives

This species lives in northern Australia and central-southern New Guinea. In Australia, it is found in the Gulf of Carpentaria drainage system and west to the Adelaide River in the Northern Territory. It also inhabits northern Queensland. The fish prefers still, clear waters such as pools and billabongs. It is also found in the slow-flowing sections of streams. Its distribution is patchy across these regions.

How it lives

Gulf saratoga are opportunistic carnivores. They feed on aquatic and terrestrial insects, small fishes, and crustaceans. Their diet reflects their ability to hunt both in the water and at the surface. They inhabit clear, slow-moving environments where they can spot prey. There is no specific information on schooling behaviour or natural predators in the provided text.

Breeding and life cycle

Like other arowanas, this fish is a mouthbrooder. However, unlike the Asian arowana where the male often broods, reports suggest the female Gulf saratoga carries the young in her mouth. This parental care protects the developing fry.

Gulf saratoga
A drawing made by EveryFish from what this page says. It is a diagram, not a picture of the real fish.

Fish and people

The Gulf saratoga is kept in aquariums due to its attractive appearance. It is sometimes sold in Asian countries under the name golden arowana because of its resemblance to the Asian species. It can be distinguished by its red-spotted fins and seven to eight rows of scales. Locally, it is sometimes called barramundi, though this name usually refers to a different perch species. It is not considered endangered.

Status and threats

The species is not listed as endangered or threatened by CITES or the IUCN Red List. It appears to have a stable population in its native range. Its status is considered secure compared to some other arowana species.

Questions people ask about Gulf saratoga

How big does the Gulf saratoga get?

This fish grows to a length of about 90 cm. Its maximum recorded weight is 17.2 kg, though some reports suggest it can reach up to 27 kg. It has a robust body shape compared to related species.

Who cares for the young in this species?

Unlike the Asian arowana where males often brood, reports indicate that the female Gulf saratoga broods the young in her mouth. This form of parental care helps protect the fry during early development.

Is the Gulf saratoga endangered?

No, it is not considered endangered or threatened. Neither CITES nor the IUCN Red List lists it as at risk. It remains relatively common in its native freshwater habitats in Australia and New Guinea.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Scleropages jardinii", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.

It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

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