Channel Catfish vs Discus
Ictalurus punctatus so sánh với Symphysodon discus
Taxonomy & Classification
| Thuộc tính | Channel Catfish | Discus |
|---|---|---|
| Tên khoa học | Ictalurus punctatus | Symphysodon discus |
| Bộ | Siluriformes | Cichliformes |
| Họ | Ictaluridae | Cichlidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Thuộc tính | Channel Catfish | Discus |
|---|---|---|
| Chiều dài tối đa | 132,0 cm | 20,0 cm |
| Cân nặng tối đa | 26,0 kg | 0,25 kg |
| Màu sắc | Blue-gray to olive-gray back with silvery-white sides; scattered small black spots on the flanks in juveniles that fade with age; belly creamy-white; deeply forked tail fin is uniformly grayish. | Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars. |
Habitat & Environment
| Thuộc tính | Channel Catfish | Discus |
|---|---|---|
| Loại nước | Freshwater | Freshwater |
| Phạm vi độ sâu | 0-15m | — |
| Phân bố địa lý | Native to the central and eastern United States and southern Canada, from the Great Lakes south through the Mississippi River basin to the Gulf Coast. … | Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic … |
| Môi trường sống | Estuaries | Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. … |
Aquarium Suitability
| Thuộc tính | Channel Catfish | Discus |
|---|---|---|
| Kích thước bể tối thiểu | — | 250 L |
| Nhiệt độ | — | 26-30 |
| Phạm vi pH | — | 5.0-7.0 |
| Mức độ chăm sóc | — | Difficult |
| Tính cách | — | Peaceful |
Thông tin câu cá
| Thuộc tính | Channel Catfish | Discus |
|---|---|---|
| Cá thể thao | Có | Không |
| Xếp hạng chiến đấu | 5/10 | — |
| Kỷ lục thế giới | — | — |
| Hàm lượng thủy ngân | — | — |
Cuisine & Edibility
Channel Catfish
Firm, moist white flesh with a mild, sweet flavor and very low fat. A Southern U.S. staple — beloved deep-fried with cornmeal batter; also excellent grilled or blackened.
Discus
Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.
Species Overview
Channel Catfish
The channel catfish is the most abundant and widely fished catfish species in North America. It has a keen sense of smell, with taste buds distributed across its entire body, enabling it to locate food in murky water.
Discus
The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.