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Scleropages formosus, particularly the 'Arwana Merah' or Red Asian Arowana, is a highly prized freshwater fish native to Southeast Asia. It is renowned for its striking coloration, large scales, and serpentine swimming motion. This species is a predatory fish, often found in slow-moving, acidic blackwater rivers and swamps. Its cultural significance, particularly in Asian cultures, is immense, often associated with luck, wealth, and prosperity, leading to its high demand in the ornamental fish trade. The 'Red' varieties are specifically bred and selected for their intense red pigmentation, which can range from orange-red to deep blood-red, especially on the fins, operculum, and body scales.
Ciri Fisik
- Bentuk tubuh
- elongated
- Warna
- The 'Arwana Merah' exhibits a vibrant red coloration that intensifies with age and proper care. This red can range from orange-red to deep blood-red, covering the scales, fins, and operculum. The intensity and distribution of red are key factors in its valuation. Juveniles may show less intense coloration, developing their full potential as they mature. Scales often have a metallic sheen.
- Jenis sisik
- ganoid
- Posisi mulut
- superior
- Ciri khas
- Large, prominent scales with a metallic sheen, often outlined in a darker color., Large, upward-facing mouth with a prominent lower jaw., Two barbels at the tip of the lower jaw., Long, flowing dorsal and anal fins that extend almost to the caudal fin., Large, expressive eyes., Laterally compressed body, giving it a 'knife-like' appearance from the front.
- Sirip punggung
- Single, long, and low, extending along the posterior half of the back, almost confluent with the caudal fin.
- Sirip ekor
- Rounded to slightly truncated, often with red coloration.
- Sirip dada
- Large and fan-like, providing stability and maneuverability.
- Sirip khas
- Pelvic fins are small and located abdominally. Anal fin is long and low, mirroring the dorsal fin in shape and length.
Tips Identifikasi
Coloration
The most defining feature of 'Arwana Merah' is its intense red pigmentation. Look for deep red on the scales, fins, and operculum. The intensity and coverage of red are crucial for identification and grading.
Barbels
Presence of two prominent barbels on the lower jaw, which are sensory organs used for detecting prey.
Scales
Large, distinct, and often iridescent scales that form a mosaic pattern along the body. The scales are typically larger than those of other Scleropages species.
Body Shape
Elongated, laterally compressed body with a relatively straight dorsal profile and a slightly convex ventral profile.
Mouth
Large, upturned mouth, indicative of its surface-feeding predatory nature.
Habitat
- Jenis air
- freshwater
- Kedalaman
- Typically found in shallow to moderate depths of slow-moving waters, often near the surface.
- Lingkungan
- Prefers blackwater rivers, swamps, peat swamps, and flooded forests with dense vegetation, submerged roots, and fallen logs. These environments are characterized by soft, acidic water and often low visibility due to tannins. They are typically found in the middle to upper water column.
- Sebaran geografis
- Native to Southeast Asia, specifically found in parts of Indonesia (Kalimantan and Sumatra) and Malaysia (Peninsular Malaysia and Sarawak). The 'Red' varieties are primarily associated with specific river systems in Kalimantan (Borneo), Indonesia.
Informasi Akuarium
- Tingkat perawatan: advanced
- Temperamen: aggressive
- Pola makan: carnivore
- Ukuran akuarium minimum: 1000 liters (265 gallons) for a single adult
- Suhu: 24-30°C (75-86°F)
- Tingkat pH: 6.0-7.0
- Kesadahan: 5-12 dGH
- Kompatibilitas: Best kept as a solitary specimen or with very large, robust, and fast-moving tank mates that cannot be swallowed. Avoid smaller fish or those with long fins.
- Kebutuhan khusus: Requires a very large tank with a secure lid (known jumpers). Excellent filtration is crucial due to their large size and carnivorous diet. Substrate should be fine sand or smooth gravel. Provide open swimming space with some driftwood or large, smooth rocks for enrichment. Lighting should be moderate. Regular large water changes are essential.
Informasi di Alam Liar
- Status konservasi: endangered
- Musim: Breeding typically occurs during the wet season when water levels are higher, providing more cover and food resources. Spawning usually takes place between July and December.
- Harga pasar: Highly variable, ranging from hundreds to tens of thousands of US dollars, depending on color intensity, lineage, and size.
- Nilai ekonomis: high
- Rasa: Not typically consumed due to its high ornamental value and conservation status.
- Tekstur: Not typically consumed.
- Nilai gizi: Not typically consumed.
Fakta kunci
Living Fossilevolution
Asian Arowanas belong to the ancient family Osteoglossidae, often referred to as 'living fossils' due to their primitive characteristics that have remained largely unchanged for millions of years.
Mouthbrooderbehavior
Scleropages formosus is a paternal mouthbrooder. After spawning, the male collects the eggs in his mouth and incubates them until the fry are free-swimming, sometimes for several weeks.
Cultural Significanceinteresting
In many Asian cultures, the Arwana Merah is considered a symbol of luck, wealth, prosperity, and power. Its resemblance to a mythical dragon contributes to its high cultural value and demand.
CITES Protectioninteresting
Due to overcollection for the aquarium trade and habitat loss, Scleropages formosus is listed on CITES Appendix I, meaning international trade in wild-caught specimens is prohibited. Captive-bred specimens require CITES permits for international trade.
Color Developmentbehavior
The vibrant red coloration of 'Arwana Merah' develops and intensifies over several years, often reaching its peak between 3-5 years of age. Factors like diet, water quality, and lighting play a significant role in color expression.
Informasi keamanan
Tangani dengan hati-hati- Tingkat keamanan: caution
- Berbisa: Tidak
- Kelayakan konsumsi: not recommended
- Catatan penanganan: While not venomous, Scleropages formosus is a large, powerful fish with a strong bite. Care should be taken when handling, especially during transfer or medical treatment, to avoid injury to both the fish and the handler. Their jumping ability also necessitates caution when approaching open tanks.
Spesies serupa
Green Arowana
Scleropages formosus (Green variety)
Lacks the intense red coloration; typically exhibits a greenish-silver or dull green body color. Scales are less vibrant.
Gold Arowana (Crossback Gold, Red Tail Gold)
Scleropages formosus (Gold varieties)
Displays golden coloration, ranging from pale gold to deep gold. Crossback Golds have gold scales extending over the back, while Red Tail Golds have gold scales that do not reach the back, and often have red fins. Lacks the overall deep red body color of 'Arwana Merah'.
Silver Arowana
Osteoglossum bicirrhosum
Native to South America. Has much smaller scales, a more elongated and slender body, and a distinct 'forked' caudal fin. Lacks barbels on the lower jaw and the vibrant coloration of Asian Arowanas.
Black Arowana
Osteoglossum ferreirai
Native to South America. Similar to Silver Arowana but with a darker, often blackish body when juvenile, fading to silver with age. Also lacks barbels and the characteristic large scales and red coloration of Scleropages formosus.
Klasifikasi ilmiah
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Osteoglossiformes
- Famili
- Osteoglossidae
- Genus
- Scleropages
- Spesies
- Scleropages formosus
Jelajahi Asian Arowana (Red variety)
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