Discus vs Cá chình Châu Âu
Symphysodon discus so sánh với Anguilla anguilla
Taxonomy & Classification
| Thuộc tính | Discus | Cá chình Châu Âu |
|---|---|---|
| Tên khoa học | Symphysodon discus | Anguilla anguilla |
| Bộ | Cichliformes | Anguilliformes |
| Họ | Cichlidae | Anguillidae |
| Conservation Status | Least Concern | Critically Endangered |
Physical Traits
| Thuộc tính | Discus | Cá chình Châu Âu |
|---|---|---|
| Chiều dài tối đa | 20,0 cm | 133,0 cm |
| Cân nặng tối đa | 0,25 kg | 6,6 kg |
| Màu sắc | 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. | Yellow-olive to olive-brown back and sides in the freshwater 'yellow eel' phase; maturing 'silver eel' phase develops a dark gray-black back with a silvery-white belly and enlarged eyes. |
Habitat & Environment
| Thuộc tính | Discus | Cá chình Châu Âu |
|---|---|---|
| Loại nước | Freshwater | Freshwater & Saltwater |
| Phạm vi độ sâu | — | 0-700m |
| Phân bố địa lý | 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 … | Spawns in the Sargasso Sea and larvae drift to European and North African coasts on the Gulf Stream. Adults inhabit rivers, lakes, and coastal waters … |
| Môi trường sống | 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. … | Estuaries |
Aquarium Suitability
| Thuộc tính | Discus | Cá chình Châu Âu |
|---|---|---|
| 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 | Discus | Cá chình Châu Âu |
|---|---|---|
| Cá thể thao | Không | Có |
| Xếp hạng chiến đấu | — | — |
| Kỷ lục thế giới | — | — |
| Hàm lượng thủy ngân | — | — |
Cuisine & Edibility
Discus
Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.
Cá chình Châu Âu
Rich, fatty flesh with a distinctive earthy flavor; classically smoked, jellied (in Britain), or grilled kabayaki-style. Critically Endangered — consumption strongly discouraged; population down 90%.
Species Overview
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.
Cá chình Châu Âu
The European eel undertakes one of nature's most remarkable migrations, traveling 5,000 km from European rivers to the Sargasso Sea to spawn and die. Despite centuries of study, its breeding grounds were only recently confirmed.