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Datnioides microlepis, commonly known as the Indonesian Tigerfish or Finescale Tigerfish, is a fascinating and predatory freshwater fish belonging to the family Datnioididae. It is highly prized in the aquarium trade for its striking coloration and distinctive vertical banding pattern, which resembles that of a tiger. These fish are ambush predators, characterized by their robust bodies, large mouths, and cryptic coloration that allows them to blend seamlessly into their natural habitats. They are known for their territorial nature and can grow to a considerable size, requiring large and well-maintained aquariums.
Características físicas
- Formato do corpo
- compressed
- Coloração
- Base color typically golden-yellow to silvery-brown, adorned with 5-7 prominent, irregular, vertical black bands that extend from the dorsal to the ventral side. The intensity and number of bands can vary. Fins are often translucent or slightly dusky.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Large, protractile mouth with thick lips, Robust, deep body, Distinctive vertical black banding pattern, Small, cycloid scales (hence 'microlepis' - small scales), Strong, spiny dorsal fin
- Nadadeira dorsal
- Consists of a spiny anterior portion (XII-XIII spines) and a soft-rayed posterior portion (15-17 soft rays), deeply notched between the two sections.
- Nadadeira caudal
- Rounded to slightly emarginate caudal fin.
- Nadadeira peitoral
- Relatively small and rounded.
- Nadadeiras características
- Pelvic fins are thoracic, located directly below the pectoral fins. Anal fin has III spines and 9-11 soft rays.
Dicas de identificação
Banding Pattern
Datnioides microlepis typically exhibits 5-7 distinct, irregular vertical black bands. The first band usually passes through the eye, and the last band is on the caudal peduncle. The bands are often broken or irregular, unlike the more uniform bands of some other Datnioides species.
Scale Size
The species name 'microlepis' refers to its relatively small scales compared to other Datnioides species. This can be observed upon close inspection, though it requires a keen eye or magnification.
Body Shape
Possesses a deep, compressed body profile, giving it a somewhat 'stocky' appearance.
Mouth
A large, upturned mouth is characteristic, indicative of its predatory feeding strategy.
Habitat
- Tipo de água
- freshwater
- Profundidade
- Typically found in shallow to moderate depths, often near submerged structures.
- Ambiente
- Prefers slow-moving to stagnant waters of large rivers, floodplains, lakes, and sometimes brackish estuaries. They are often found among submerged roots, fallen trees, and dense vegetation, using these as ambush points.
- Distribuição geográfica
- Native to Southeast Asia, specifically found in the Mekong and Chao Phraya river basins, as well as various river systems in Indonesia (Sumatra, Borneo) and Malaysia.
Informações sobre aquário
- Nível de cuidado: advanced
- Temperamento: semi-aggressive
- Alimentação: carnivore
- Tamanho mínimo do aquário: 750L (200 gallons) for a single adult, larger for multiple or community setups
- Temperatura: 24-28°C (75-82°F)
- Nível de pH: 6.5-7.5
- Dureza da água: 5-15 dGH
- Compatibilidade: Best kept alone or with other large, robust, and similarly sized semi-aggressive fish that cannot be swallowed. Avoid small or overly aggressive tank mates. Examples include large cichlids, arowanas, and large catfishes.
- Requisitos especiais: Requires a spacious aquarium with plenty of hiding spots created by driftwood, rocks, and robust artificial plants. Substrate can be sand or fine gravel. Excellent filtration is crucial due to their large bioload. They prefer subdued lighting and a strong current in some areas of the tank. Live or frozen meaty foods are essential for their diet. They are sensitive to poor water quality.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Breeding patterns in the wild are not extensively documented, but they are generally available year-round in the aquarium trade, primarily from aquaculture or wild collection.
- Preço de mercado: Varies significantly based on size, origin, and coloration, often ranging from $50 to several hundred dollars for larger specimens.
- Importância comercial: medium
- Sabor: Mild, white flesh
- Textura: Flaky, firm
- Métodos de preparo: Frying, Grilling, Steaming, Baking
- Valor nutricional: Good source of protein and omega-3 fatty acids, typical of many freshwater fish.
Fatos principais
Ambush Predatorbehavior
Datnioides microlepis is a classic ambush predator, often remaining motionless among submerged structures, waiting for unsuspecting prey to pass by before launching a swift attack.
Color Changeinteresting
These fish can subtly change the intensity of their coloration and banding patterns to better blend into their surroundings or to express mood, such as stress or excitement.
Long Lifespanamazing
With proper care, Datnioides microlepis can live for 10-15 years or even longer in captivity, making them a long-term commitment for aquarists.
Solitary Naturebehavior
While sometimes seen in loose aggregations when young, adult Datnioides microlepis tend to be solitary and territorial, especially towards conspecifics.
Taxonomic Confusioninteresting
The taxonomy of the genus Datnioides has historically been complex, leading to frequent misidentification, particularly between D. microlepis and D. pulcher, which has implications for conservation efforts.
Informações de segurança
Manusear com cuidado- Nível de segurança: caution
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: While not venomous, Datnioides microlepis possesses sharp dorsal and anal fin spines that can inflict painful punctures. Care should be taken when handling to avoid injury. Their large mouths and strong jaws can also deliver a bite if provoked, though this is rare. They are primarily a threat to smaller fish in an aquarium setting.
Espécies similares
Siamese Tigerfish
Datnioides pulcher
D. pulcher typically has 3-4 very broad, distinct, and unbroken vertical black bands, often with a 'Y' shaped band near the caudal fin. Its scales are also generally larger than D. microlepis. D. pulcher is also critically endangered.
New Guinea Tigerfish
Datnioides campbelli
D. campbelli usually has 6-7 narrower, more regular vertical bands and a more elongated body shape. It is also geographically distinct, found in New Guinea.
Silver Tigerfish
Datnioides quadrifasciatus
D. quadrifasciatus typically has 4-5 distinct, often narrower bands and a more silvery base coloration. It is also often found in brackish water environments.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Perciformes
- Família
- Datnioididae
- Gênero
- Datnioides
- Espécie
- Datnioides microlepis
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