Leslie Massey
Stingrays are closely related to sharks, with both species having a skeleton made of cartilage. They are found in oceans around the world, including the warm waters of the Mediterranean Sea, the Black Sea, Africa, the United States, and Asia. In Australia, stingrays are found in the Great Barrier Reef, as well as in the southern and eastern regions of the country. They are typically found in shallow waters, burying themselves in the sand, and their colour ranges from sandy to darker brown, helping them blend in with their environment.
| Characteristics | Values |
|---|---|
| Stingray species in Australia | Estuary stingray, Smooth stingray, Giant Black Ray, Giant Stingray, New Zealand Short-tail Stingaree, Short-tail Stingray, Short-tailed Stingaree, Stingray, Marble Stingray, Black-blotched Ray, Black-spotted Stingray, Blotched Fantail Ray, Round Fantail Ray, Bluespotted Maskray, Coral Sea Maskray |
| Estuary stingray habitat | Tidal rivers, intertidal flats of estuaries and bays lined with mangroves, Repulse Bay in Queensland to the Hacking River in New South Wales, southern Queensland, Hervey Bay, Moreton Bay, Cape York Peninsula, Northern Territory, New Guinea, South China Sea |
| Estuary stingray appearance | Diamond-shaped pectoral fin disc, whip-like tail with dorsal and ventral fin folds, long and narrow nostrils, yellow-brown to olive colour, 93 cm across |
| Smooth stingray habitat | Southern Australia, New Zealand, South Africa |
| Smooth stingray appearance | Greyish-brown with a pale underside, large serrated spine on the tail, deep smooth rhomboidal disc, short tail, 2m wide |
| Blotched Fantail Ray habitat | Great Barrier Reef, Ningaloo Reef, southern Queensland, northern New South Wales |
| Blotched Fantail Ray appearance | Black, black and white/grey blotches, grey with black blotches, 1.8m in width |
| Coral Sea Maskray habitat | East coast of Australia |
| Coral Sea Maskray appearance | Blue spots |
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What You'll Learn
Stingrays are found in the Great Barrier Reef
Stingrays are not known to be actively aggressive, and the tragic death of Steve Irwin, the Crocodile Hunter, was described by many marine biologists as a terrible freak accident. The death of Irwin did not help the already questionable reputation of stingrays. However, it is important to note that stingrays can become quite friendly. In some islands in the Maldives, the locals feed them remnants of fish every day, and the stingrays seem to recognise each individual, slithering up their legs and begging for food.
The estuary stingray (Hemitrygon fluviorum), also called the estuary stingaree or brown stingray, is a species endemic to eastern Australia. It typically inhabits shallow, mangrove-lined tidal rivers, estuaries, and bays in southern Queensland and New South Wales. This yellow-brown to olive ray grows to at least 93 cm across and has a diamond-shaped pectoral fin disc and a whip-like tail bearing dorsal and ventral fin folds. The estuary stingray has gained a reputation for consuming farmed shellfish, but its diet mainly consists of crustaceans and polychaete worms.
The Smooth Stingray (Bathytoshia brevicaudata) is the largest stingray species in the world, and it can be found in southern Australia. They are potentially very dangerous to humans due to their large size and have been responsible for very painful injuries and at least one death in Australia.
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They are also found in Moreton Bay, Queensland
Stingrays are found in various parts of Australia, including Queensland, New South Wales, Victoria, and Western Australia. They are also found in Moreton Bay, Queensland, which is known for its diverse fish fauna and cultural, social, and economic value. Moreton Bay has historically been an important fishing area for Indigenous Australians and continues to attract recreational anglers and commercial fisheries.
The estuary stingray (Hemitrygon fluviorum), also called the estuary stingaree or brown stingray, is a species commonly found in Moreton Bay. This species typically inhabits shallow, mangrove-lined tidal rivers, estuaries, and bays in southern Queensland and New South Wales. They can be identified by their yellow-brown to olive colour, diamond-shaped pectoral fin disc, and whip-like tail bearing dorsal and ventral fin folds. The estuary stingray mainly feeds on crustaceans and polychaete worms, such as the soldier crab (Mictyris longicarpus) in Moreton Bay.
However, the estuary stingray population in Moreton Bay has declined due to various human-induced threats. The rapid urban growth and development along the Gold Coast, Moreton Bay, and Sunshine Coast coastline have placed significant pressure on their habitat. Additionally, bycatch in commercial fisheries, persecution by shellfish farmers, and recreational fishing activities have contributed to the decline. Surveys in Moreton Bay have found fishing-related injuries, such as embedded hooks and mutilated tails, in over 10% of the estuary stingray population.
To address these issues, conservation efforts are needed to protect the habitat and reduce the impact of human activities on the estuary stingray population in Moreton Bay. This may include implementing regulations and practices that promote sustainable fishing methods and minimise habitat degradation. By taking these steps, we can help ensure the long-term survival of this unique and ecologically important species in the region.
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They inhabit shallow waters, burying themselves in the sand
Stingrays are found in warm waters worldwide, including the Mediterranean Sea, the Black Sea, Africa, the United States, and Asia. They are closely related to sharks, as both species have cartilage skeletons. They are typically found in the shallow waters of the ocean floor, burying themselves in the sand. They range in size from 40 cm to over 2 m in diameter and have a venomous, barbed tail used for defence. They are not known to be aggressive, but they will lash out if they feel threatened.
In Australia, stingrays are commonly found in the Great Barrier Reef and the eastern coast of the country, particularly in Queensland and New South Wales. The estuary stingray (Hemitrygon fluviorum), also known as the estuary stingaree or brown stingray, is native to eastern Australia and can be found in the shallow, mangrove-lined tidal rivers, estuaries, and bays of southern Queensland and New South Wales. This species has a diamond-shaped pectoral fin disc and a whip-like tail, growing to at least 93 cm across. It feeds primarily on crustaceans and polychaete worms, but has a reputation for consuming farmed shellfish.
The smooth stingray (Bathytoshia brevicaudata) is the largest stingray species globally and can be found in southern Australia, particularly in Port Phillip, Victoria, and Sydney, New South Wales. This species has a deep, rhomboidal disc and a short, depressed tail with a large, venomous spine. They are known to feed on spider crabs and can be dangerous to humans due to their large size.
The marble stingray, or black-blotched ray, is another species found in Australia, particularly in the Great Barrier Reef and Ningaloo Reef. This species grows to 1.8 m in width and is usually found on the ocean floor or hovering in midwater when a current is running. The blotched fantail ray, a member of the same genus, is also common in Australia, especially in subtropical waters off southern Queensland and northern New South Wales.
The bluespotted maskray is another small species found in Australia, particularly off the east coast, with distinctive blue spots or black spots across the eyes.
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They are found in tidal rivers and estuaries
Stingrays are found in tidal rivers and estuaries in Australia. The estuary stingray (Hemitrygon fluviorum), also known as the estuary stingaree or brown stingray, is a species of stingray in the family Dasyatidae. They are endemic to eastern Australia, particularly southern Queensland and New South Wales. These stingrays inhabit shallow, mangrove-lined tidal rivers, estuaries, and bays, with a preference for sandy to muddy bottoms.
The estuary stingray has a distinctive appearance, featuring a diamond-shaped pectoral fin disc, a whip-like tail bearing dorsal and ventral fin folds, long narrow nostrils, and a row of thorns along its back. Its colour ranges from yellow-brown to olive, and it typically grows to at least 93 cm (37 inches) across.
Estuary stingrays play a significant role in shaping estuaries, as revealed by a study conducted in Brisbane Water, NSW. They displace a substantial amount of sand, estimated at 21,000 tonnes per year, which is comparable to the mass of the Great Sphinx of Giza. This sand turnover helps with oxygen penetration, benefiting various organisms within the estuary ecosystem.
The species faces several threats, including incidental capture by commercial fisheries and recreational anglers, as well as habitat degradation due to urban development and pollution. Conservation efforts are important to protect the species and maintain the health of the estuary ecosystems they inhabit.
In addition to the estuary stingray, other species of stingrays, such as the smooth stingray (Bathytoshia brevicaudata), are also found in Australian waters, including in Victoria and Western Australia. These stingrays can be dangerous to humans due to their large size and venomous spines.
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They are found in the Indo-Pacific region
Stingrays are found in the warm waters of the Mediterranean Sea, the Black Sea, Africa, the United States, and Asia. In Australia, they are found in the eastern region, particularly in Queensland and New South Wales. They are also found in the Great Barrier Reef, one of the most diverse ecosystems on the planet, located off the coast of Queensland, Australia.
The Indo-Pacific region is a vast area encompassing the tropical waters of the Indian and western Pacific Oceans. It includes the coastal regions and exclusive economic zones of numerous countries, extending from the eastern coast of Africa to the western coasts of the Americas. Within this region, stingrays can be found in a variety of habitats, including coral reefs, mangrove estuaries, and sandy ocean floors.
The Marble Stingray, also known as the Black-blotched Ray or Black-spotted Stingray, is one such species found in the Indo-Pacific region. This stingray can grow up to 1.8 meters in width and is commonly found in the waters off southern Queensland and northern New South Wales. They are particularly abundant in subtropical waters, with large numbers seen in these areas.
The Bluespotted Maskray, a member of the Maskray genus, is another stingray species found in the Indo-Pacific region. This small stingray has a short tail and distinctive dark mask-like colouration across its eyes. The Oriental Bluespotted Maskray (Neotrygon orientale) is often encountered by divers exploring the reefs and muck sites of Southeast Asia. A closely related species, the Coral Sea Maskray (Neotrygon trigonoides), is commonly found off the east coast of Australia.
The Smooth Stingray (Bathytoshia brevicaudata) is the largest stingray species in the world and is also found in the Southern Hemisphere, including the temperate waters of southern Australia, New Zealand, and South Africa. This species can be identified by its deep smooth rhomboidal disc, diagonal rows of pale pores on each side of its head, and a short, depressed tail with a sharp, serrated spine. Smooth Stingrays are potentially dangerous to humans due to their large size and have been responsible for painful injuries and even deaths.
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Frequently asked questions
Stingrays are found in various places in Australia, including Queensland, New South Wales, Victoria, Tasmania, South Australia, Western Australia, the Great Barrier Reef, and Ningaloo Reef.
Australia has a variety of stingray species, including the estuary stingray, marble stingray, black-blotched ray, black-spotted stingray, smooth stingray, giant black ray, giant stingray, and short-tail stingaree.
Stingrays are cartilaginous fish, meaning they have skeletons made of cartilage rather than bone. They are closely related to sharks. Stingrays vary in size and colour, ranging from 40 cm to 2 m or more in diameter and can be sandy to dark brown in colour. They have distinct tail spines that can be venomous and are used for defence.
While stingrays are not known to be actively aggressive, they can be dangerous to humans if they feel threatened. Their venomous tail spines can cause lacerations or punctures, and they may lash out reflexively if they feel trapped, as in the tragic case of Steve Irwin's death.
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