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Amniataba percoides, commonly known as the Banded Grunter, is a small to medium-sized freshwater fish belonging to the family Terapontidae. It is characterized by its distinctive vertical banding pattern and is a common inhabitant of various freshwater systems across northern Australia and southern New Guinea. This species is known for its adaptability to different aquatic environments, from clear flowing streams to turbid billabongs.
Physical Characteristics
- Body shape
- compressed
- Coloration
- The body is typically silvery-grey to brownish-yellow, adorned with 5-7 prominent, dark vertical bands that extend from the dorsal surface to the belly. The intensity and distinctness of these bands can vary with age, mood, and habitat. Fins are generally translucent to dusky, sometimes with darker margins.
- Scale type
- ctenoid
- Mouth position
- terminal
- Distinctive features
- 5-7 dark vertical bands on the body, Moderately deep, compressed body, Small, terminal mouth, Spiny dorsal fin, Slightly forked caudal fin
- Dorsal fin
- Single dorsal fin, deeply notched, with 11-13 strong spines anteriorly and 9-11 soft rays posteriorly. The spiny portion is longer than the soft-rayed portion.
- Tail fin
- Caudal fin is moderately forked with rounded lobes.
- Pectoral fin
- Pectoral fins are relatively short and rounded.
- Distinctive fins
- Anal fin has 3 spines and 7-9 soft rays. Pelvic fins are thoracic, with 1 spine and 5 soft rays.
Identification Tips
Body Bands
The most distinguishing feature is the presence of 5-7 dark, vertical bands on the body. These bands are usually quite prominent.
Dorsal Fin
Note the deeply notched dorsal fin with a prominent spiny anterior portion.
Size
Typically a smaller grunter species, rarely exceeding 15 cm in total length.
Habitat
- Water type
- freshwater
- Depth
- Typically found in shallow to moderate depths, often near submerged vegetation, fallen timber, or rocky areas.
- Environment
- Inhabits a wide range of freshwater environments including rivers, streams, billabongs, lagoons, and floodplains. Prefers areas with some cover and moderate flow, but can tolerate still and turbid waters. Often found in association with aquatic plants and woody debris.
- Geographic range
- Northern Australia (from the Kimberley region of Western Australia, across the Northern Territory, to Queensland) and southern New Guinea.
Aquarium Information
- Care level: intermediate
- Temperament: semi-aggressive
- Diet: omnivore
- Minimum tank size: 150 liters (40 gallons)
- Temperature: 22-28°C (72-82°F)
- pH level: 6.5-7.8
- Hardness: 5-15 dGH
- Compatibility: Can be kept with similarly sized, robust fish. Avoid very small or overly aggressive tank mates. May be territorial, especially during breeding.
- Special requirements: Requires a well-filtered aquarium with plenty of hiding spots (rocks, driftwood, plants). A sandy or fine gravel substrate is preferred. Good water quality is essential. Can be sensitive to sudden changes in water parameters.
Wild Information
- Conservation status: least concern
- Seasonality: Breeding typically occurs during the wet season (monsoon season) in their native range, usually from November to April, when water levels are high and food is abundant.
- Market price: Low
- Commercial importance: low
- Taste: Mild, slightly earthy
- Texture: Firm, white flesh
- Cooking methods: Frying, Grilling, Baking, Steaming
- Nutritional value: Good source of protein and omega-3 fatty acids.
Key Facts
Adaptable Survivoramazing
Banded Grunters are highly adaptable, capable of surviving in a wide range of freshwater conditions, from clear, flowing streams to stagnant, turbid billabongs, showcasing their resilience.
Grunting Soundbehavior
Like other grunters, Amniataba percoides can produce a 'grunting' sound, particularly when stressed or during spawning, by rubbing pharyngeal teeth together or vibrating their swim bladder.
Dietary Generalistsbehavior
Their omnivorous diet, consisting of insects, small crustaceans, algae, and detritus, contributes to their success in diverse environments.
Safety Information
Handle with care- Safety level: caution
- Venomous: No
- Edibility: edible
- Handling notes: While not venomous, the Banded Grunter possesses sharp spines in its dorsal, anal, and pelvic fins. Care should be taken when handling to avoid painful punctures. Use a wet hand or a glove if necessary to minimize stress to the fish and prevent injury to yourself.
Similar Species
Barred Grunter
Hephaestus fuliginosus
Hephaestus fuliginosus is generally larger, lacks the distinct vertical bands of Amniataba percoides (often uniformly dark or with faint blotches), and has a more robust body shape. Its dorsal fin spines are also typically stronger.
Small-headed Grunter
Leiopotherapon unicolor
Leiopotherapon unicolor (Spangled Perch) has a more elongated body and is covered in numerous small, dark spots rather than distinct vertical bands. It also typically grows larger than Amniataba percoides.
Scientific Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Terapontidae
- Genus
- Amniataba
- Species
- percoides
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