Discus vs Sockeye Salmon
Symphysodon discus so sánh với Oncorhynchus nerka
Taxonomy & Classification
| Thuộc tính | Discus | Sockeye Salmon |
|---|---|---|
| Tên khoa học | Symphysodon discus | Oncorhynchus nerka |
| Bộ | Cichliformes | Salmoniformes |
| Họ | Cichlidae | Salmonidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Thuộc tính | Discus | Sockeye Salmon |
|---|---|---|
| Chiều dài tối đa | 20,0 cm | 84,0 cm |
| Cân nặng tối đa | 0,25 kg | 7,7 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. | At sea, metallic blue-green back with silvery flanks and no spots; spawning males turn brilliant crimson-red over the entire body with a greenish head; females less vivid with blotchy red-orange hues. |
Habitat & Environment
| Thuộc tính | Discus | Sockeye Salmon |
|---|---|---|
| Loại nước | Freshwater | Freshwater & Saltwater |
| Phạm vi độ sâu | — | 0-250m |
| 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 … | North Pacific from California north to Alaska and west to Japan and Kamchatka. Anadromous populations use lake-fed river systems such as the Fraser, Skeena, and … |
| 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. … | Anadromous; spawns in rivers and streams throughout the Pacific Coast (Alaska to California, Columbia River). Adults spend 2-3 years in the Pacific Ocean at 50-200m … |
Aquarium Suitability
| Thuộc tính | Discus | Sockeye Salmon |
|---|---|---|
| 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 | Sockeye Salmon |
|---|---|---|
| Cá thể thao | Không | Có |
| Xếp hạng chiến đấu | — | 6/10 |
| 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.
Sockeye Salmon
Intense, deep-red flesh with a full, robust salmon flavor and high omega-3 content. Excellent grilled, smoked, or canned; its bold flavor stands up to strong seasonings and wood smoke.
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.
Sockeye Salmon
The sockeye salmon is famous for turning bright red during its upstream spawning migration. Its deep-red flesh is the richest in omega-3 fatty acids of all Pacific salmon species, making it the most valuable commercially.