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Megalobrama amblycephala, commonly known as the Boga or Blunt-snout bream, is a freshwater cyprinid fish native to East Asia. It is a commercially important aquaculture species, particularly in China, known for its rapid growth and palatable flesh. This species is characterized by its deep, compressed body and a relatively small, blunt head. It is a schooling fish, typically found in the middle to lower water columns of lakes, reservoirs, and slow-flowing rivers.
Ciri-ciri Fizikal
- Bentuk badan
- compressed
- Warna
- Silvery-white on the flanks and belly, with a darker, grayish-green to brownish-green dorsal surface. Fins are typically dusky or yellowish.
- Jenis sisik
- cycloid
- Kedudukan mulut
- subterminal
- Ciri tersendiri
- Deep, laterally compressed body, Relatively small, blunt head with a short snout, Small, subterminal mouth, Long anal fin with numerous rays, Prominent lateral line
- Sirip dorsal
- Short, with 3-4 unbranched rays and 7-8 branched rays. Originates slightly anterior to the pelvic fin origin.
- Sirip ekor
- Deeply forked, with pointed lobes.
- Sirip pektoral
- Moderately long, reaching to or slightly beyond the pelvic fin origin.
- Sirip tersendiri
- Anal fin is notably long, with 3 unbranched rays and 25-29 branched rays. Pelvic fins are abdominal.
Petua Pengenalan
Body Shape
Look for a very deep, compressed body, giving it a 'tall' appearance when viewed from the side.
Head and Mouth
Note the relatively small, blunt head and the small, subterminal mouth, which is positioned slightly below the tip of the snout.
Anal Fin Length
The most distinguishing feature is its exceptionally long anal fin, which extends for a significant portion of the ventral side of the body.
Lateral Line
Observe the complete and prominent lateral line, which typically has 50-56 scales.
Habitat
- Jenis air
- freshwater
- Kedalaman
- Typically found in the middle to lower water columns, but can range throughout the water column.
- Persekitaran
- Lakes, reservoirs, large rivers, and their associated floodplains. Prefers areas with moderate to slow currents and abundant aquatic vegetation. Tolerant of a range of water conditions.
- Julat geografi
- Native to East Asia, primarily found in the Yangtze River basin and other major river systems in China. Introduced to other regions for aquaculture.
Maklumat Akuarium
- Tahap penjagaan: expert
- Perangai: peaceful
- Diet: omnivore
- Saiz tangki minimum: 500 gallons
- Suhu: 20-28 °C (68-82 °F)
- Tahap pH: 7.0-8.0
- Kekerasan air: 10-20 dGH
- Keserasian: Generally compatible with other large, peaceful freshwater fish. Avoid housing with aggressive or very small species.
- Keperluan khas: Requires a very large tank with ample swimming space. Good filtration is essential due to its size and waste production. A varied diet including plant matter and protein is crucial. Not typically kept in home aquariums due to its large size.
Maklumat Liar
- Status pemuliharaan: least concern
- Musim: Spawns primarily in spring and early summer. Harvested year-round in aquaculture, but wild catches may be more seasonal.
- Harga pasaran: Varies significantly by region and market, but generally a moderately priced food fish.
- Kepentingan komersial: high
- Rasa: Mild, slightly sweet
- Tekstur: Flaky, tender
- Kaedah memasak: Steaming, Baking, Frying, Grilling, Soup
- Nilai pemakanan: Good source of protein, omega-3 fatty acids, and various vitamins and minerals.
Fakta utama
Aquaculture Stapleinteresting
Megalobrama amblycephala is one of the most important aquaculture species in China, extensively farmed for food due to its fast growth rate and adaptability.
Herbivorous Tendenciesbehavior
While omnivorous, this species shows a strong preference for plant matter, especially aquatic macrophytes, which contributes to its role in controlling aquatic vegetation in some ecosystems.
Hybridization Potentialevolution
Megalobrama amblycephala is known to hybridize with other related cyprinid species, a phenomenon sometimes exploited in aquaculture to create faster-growing or more disease-resistant strains.
Blunt Snoutinteresting
The common name 'Blunt-snout bream' directly refers to its distinctive, short and rounded snout, a key morphological feature.
Maklumat keselamatan
Selamat- Tahap keselamatan: safe
- Berbisa: Tidak
- Kebolehmakanan: edible
- Nota pengendalian: No specific handling precautions are required beyond standard fish handling practices to avoid injury from spines (though not venomous) or slippery surfaces. Handle gently to minimize stress to the fish.
Spesies serupa
Common Bream
Abramis brama
While also deep-bodied, Abramis brama generally has a more pointed snout and a shorter anal fin (typically 23-29 rays, compared to 25-29 branched rays in M. amblycephala, but the overall length and appearance differ). The mouth of Abramis brama is also more protrusible.
Silver Bream
Blicca bjoerkna
Silver Bream is typically smaller, has larger eyes relative to its head size, and a shorter anal fin (19-24 rays). Its body is also less deep and compressed than M. amblycephala.
Other Megalobrama species
Megalobrama terminalis (Black Amur Bream)
Megalobrama terminalis has a more elongated body shape, a larger mouth, and a more terminal mouth position compared to the blunt-snout bream. Its coloration can also be darker.
Klasifikasi saintifik
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Cypriniformes
- Keluarga
- Cyprinidae
- Genus
- Megalobrama
- Spesies
- Megalobrama amblycephala
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