Blue Marlin vs Discus
Makaira nigricans との比較 Symphysodon discus
Taxonomy & Classification
| 属性 | Blue Marlin | Discus |
|---|---|---|
| 学名 | Makaira nigricans | Symphysodon discus |
| 目 | Istiophoriformes | Cichliformes |
| 科 | Istiophoridae | Cichlidae |
| Conservation Status | Vulnerable | Least Concern |
Physical Traits
| 属性 | Blue Marlin | Discus |
|---|---|---|
| 最大体長 | 500.0 cm | 20.0 cm |
| 最大体重 | 636.0 kg | 0.25 kg |
| 体色 | Deep cobalt-blue back transitioning to silvery-white belly; flanks display 15 or more pale vertical iridescent bars that fade rapidly after death; dorsal fin vivid cobalt. | 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
| 属性 | Blue Marlin | Discus |
|---|---|---|
| 水質タイプ | Saltwater | Freshwater |
| 生息水深 | 0-1000m | — |
| 分布域 | Circumglobal in tropical and subtropical Atlantic, Indian, and Pacific oceans. Highly migratory, frequenting open blue-water environments from the Gulf Stream and Caribbean to the equatorial … | 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 … |
| 生息地 | Open ocean (epipelagic to mesopelagic, 0-200m) in tropical and subtropical Atlantic, Pacific, and Indian Oceans. Migratory; follows warm currents and thermoclines. Spawns in open oceanic … | 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
| 属性 | Blue Marlin | Discus |
|---|---|---|
| 最小水槽サイズ | — | 250 L |
| 水温 | — | 26-30 |
| pH 範囲 | — | 5.0-7.0 |
| 飼育難易度 | — | Difficult |
| 気性 | — | Peaceful |
釣り情報
| 属性 | Blue Marlin | Discus |
|---|---|---|
| ゲームフィッシュ | はい | いいえ |
| ファイト評価 | 10/10 | — |
| 世界記録 | — | — |
| 水銀含有量 | — | — |
Cuisine & Edibility
Blue Marlin
Firm, mildly flavored meat with moderate fat; often used in Hawaii as smoked marlin or grilled steaks. A prized sport catch; consumption is moderate due to Vulnerable status.
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
Blue Marlin
The blue marlin is the pinnacle of big-game fishing. Found in tropical and temperate Atlantic and Indo-Pacific waters, it can exceed 500 kg and is known for spectacular aerial displays when hooked.
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.