Discus vs 美国红鱼
Symphysodon discus 与之比较 Sciaenops ocellatus
Taxonomy & Classification
| 属性 | Discus | 美国红鱼 |
|---|---|---|
| 学名 | Symphysodon discus | Sciaenops ocellatus |
| 目 | Cichliformes | Perciformes |
| 科 | Cichlidae | Sciaenidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| 属性 | Discus | 美国红鱼 |
|---|---|---|
| 最大体长 | 20.0 cm | 155.0 cm |
| 最大体重 | 0.25 kg | 45.0 kg |
| 体色 | 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. | Coppery-bronze to reddish-orange flanks with a characteristic black eyespot at the upper tail base; back is darker bronze-olive; belly pale to silvery; fins match body tone with dusky margins. |
Habitat & Environment
| 属性 | Discus | 美国红鱼 |
|---|---|---|
| 水质类型 | Freshwater | Freshwater & Saltwater |
| 栖息水深 | — | 10-?m |
| 地理分布 | 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 … | Western North Atlantic from Massachusetts south through the Gulf of Mexico and Caribbean. Adults favor open nearshore reefs and coastal surf zones while juveniles inhabit … |
| 栖息地 | 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
| 属性 | Discus | 美国红鱼 |
|---|---|---|
| 最小水箱尺寸 | 250 L | — |
| 水温 | 26-30 | — |
| pH 范围 | 5.0-7.0 | — |
| 饲养难度 | Difficult | — |
| 性情 | Peaceful | — |
钓鱼信息
| 属性 | Discus | 美国红鱼 |
|---|---|---|
| 游钓鱼种 | 否 | 是 |
| 搏鱼评级 | — | 7/10 |
| 世界纪录 | — | — |
| 汞含量 | — | — |
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.
美国红鱼
Firm, white flesh with a mild, sweet flavor and moderate fat; smaller fish (under 27 inches) are the best table size. Famous as 'blackened redfish' — a Louisiana Cajun culinary classic.
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.
美国红鱼
The red drum, or redfish, is an iconic inshore game fish of the Atlantic and Gulf coasts. Identified by the distinctive black spot at the base of its tail, it feeds by tipping head-down in shallow water, exposing its copper-colored tail.