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The Australian lungfish, or Queensland lungfish, is a fascinating species native to only a handful of sluggish river systems in southeastern Queensland, Australia. With a unique respiratory system, complex courtship behaviours, and a diet that changes as they develop, these ancient fish offer a glimpse into the distant past of vertebrate evolution. But what exactly do these lungfish eat?
| Characteristics | Values |
|---|---|
| Diet | Carnivorous |
| Diet in captivity | Frogs, earthworms, pieces of meat, pelleted food |
| Diet in the wild | Frogs, tadpoles, small fish, invertebrates, plant material |
| Diet of larvae | Micro-crustaceans, small Tubifex worms, filamentous algae |
| Diet of adults | Frogs, tadpoles, fish, shrimps, prawns, earthworms, aquatic snails, bivalve mollusks, moss, fallen flowers from Eucalyptus trees, aquatic plants, insects larvae, meat, offal, dried dog or poultry food, dead toads |
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Frogs, tadpoles, and fish
The diet of the Australian lungfish changes as it develops, with larvae eating micro-crustaceans and small Tubifex worms, while adults consume larger prey such as frogs, tadpoles, and fish. This change in diet is correlated with a change in dentition, as the cone-shaped teeth of young lungfish expand and slightly erode into tooth plates as they mature.
Frogs are an important food source for the Australian lungfish, and they are well-adapted to hunting and consuming these amphibians. The lungfish's strong jaws and crushing mechanism allow them to effectively capture and feed on frogs, which can provide a substantial meal.
Tadpoles are also a common part of the Australian lungfish's diet, especially during the larval stage when they are smaller and more vulnerable. The lungfish's ability to detect prey through electroreception may be particularly advantageous in locating and capturing tadpoles, which often occupy similar aquatic habitats.
Small fish are another component of the Australian lungfish's diet, especially as they mature and require larger sources of nutrition. The lungfish's sedentary nature and poor eyesight suggest that they may favor slow-moving or stationary prey, making small fish an ideal food source.
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Invertebrates
The Australian lungfish is a voracious nocturnal carnivore and its diet includes a variety of aquatic animals, including members of its own species. In captivity, it will feed on frogs, earthworms, pieces of meat, and pelleted food. In the wild, its prey includes frogs, tadpoles, small fish, and plant material.
Australian lungfish are omnivores and will feed on a range of small animals, including invertebrates and plants. They are equipped with strong teeth plates that they use to crush their prey. They prefer to feed on live food and will eat anything fleshy.
The diet of the Australian lungfish includes a variety of invertebrates, such as snails, shrimp, prawns, and aquatic molluscs. They also eat moss, which is available at the base of the river. These fish use electrical signals and their sense of smell to locate their hunting spots. Their eyesight is reported to be poor, and they rely on their sense of smell and electroreception to locate their prey.
Lungfish larvae are bottom feeders and eat small invertebrates such as micro-crustaceans and Tubifex worms. They occasionally supplement their diet with filamentous algae.
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Carnivorous diet
The Australian lungfish is primarily carnivorous. In captivity, it feeds on frogs, earthworms, pieces of meat, and pelleted food. In the wild, its prey includes tadpoles, small fish, a variety of invertebrates, and plant material. The diet of the lungfish changes with development, and its dentition changes accordingly.
Lungfish larvae are bottom feeders, eating small worms and micro-crustaceans. Adult lungfish have larger teeth and can eat larger prey such as frogs, tadpoles, fish, shrimps, prawns, snails, bivalve molluscs, and even meat and offal. They have also been observed to eat insects and insect larvae. The Australian lungfish has poor eyesight, so it relies on its sense of smell and electroreception to locate its prey.
The Australian lungfish is a sedentary species, rarely moving beyond a single pool or two adjacent pools. It is native to the Burnett and Mary River systems in south-eastern Queensland, Australia, and has been introduced to other rivers and reservoirs in the region. It prefers still or slow-flowing pools in river systems.
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![Feed (2005) [Limited Edition]](https://m.media-amazon.com/images/I/714xIrFTCJL._AC_UY218_.jpg)
Captivity diet
Captive Australian lungfish are fed a carnivorous diet, including frogs, earthworms, pieces of meat, and pelleted food. They are also known to eat tadpoles, small fish, and aquatic and terrestrial plant material.
In captivity, the diet of lungfish larvae includes newly hatched brine shrimp, daphnia, and midge larvae. The larvae are bottom feeders and have very thin bodies, making them poor swimmers. They spend long periods on their sides at the bottom of their enclosure. Once they start feeding, the larvae become much more active and tend to lie on their bellies.
The diet of captive lungfish changes as they develop, with adult lungfish crushing their prey with their jaws. This is coupled with a hydraulic transport mechanism that helps position the food in their oral cavity.
Australian lungfish are native to a small number of sluggish river systems in southeastern Queensland, Australia. They are primarily nocturnal and can live for several days out of water, as long as their skin remains moist. They are a protected species and may not be captured without a special permit.
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Plant material
The Australian lungfish is primarily carnivorous, but it does include plant material in its diet. In the wild, adult lungfish are known to eat moss, fallen flowers from Eucalyptus trees, and aquatic plants. They also eat filamentous algae, although this may be to consume the minuscule organisms bound to it rather than the algae itself.
Lungfish larvae are bottom feeders, and their diet includes soft foods that are crushed with a few quick bites and then swallowed. This includes worms and plants.
In captivity, Australian lungfish have been observed to eat a variety of plant material, including dried dog or poultry food.
The diet of the Australian lungfish changes as it develops, and this is proven to be correlated with a change in dentition.
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Frequently asked questions
Australian lungfish are primarily carnivorous and eat frogs, tadpoles, small fish, snails, shrimp, and earthworms. They also eat plant material.
Yes, Australian lungfish hunt for their food. They locate prey through their sense of smell and electroreception rather than sight.
Australian lungfish larvae are bottom feeders and eat micro-crustaceans and small Tubifex worms. They may also eat filamentous algae.
Yes, Australian lungfish eat some aquatic and terrestrial plant material, although they do not seem to digest it.
Australian lungfish in captivity eat frogs, earthworms, pieces of meat, and pelleted food.
![Feed (2005) [Limited Edition]](https://m.media-amazon.com/images/I/61s+KJ3XmDL._AC_UY218_.jpg)
