Thon rouge de l'Atlantique vs Discus
Thunnus thynnus comparé à Symphysodon discus
Taxonomy & Classification
| Attribut | Thon rouge de l'Atlantique | Discus |
|---|---|---|
| Nom scientifique | Thunnus thynnus | Symphysodon discus |
| Ordre | Scombriformes | Cichliformes |
| Famille | Scombridae | Cichlidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribut | Thon rouge de l'Atlantique | Discus |
|---|---|---|
| Longueur maximale | 458,0 cm | 20,0 cm |
| Poids maximum | 680,0 kg | 0,25 kg |
| Couleur | Dark metallic blue-black back with a bright silvery-white lower belly; upper flanks show iridescent blue and green tones; short yellow finlets have black margins; second dorsal and pectoral fins dark. | 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
| Attribut | Thon rouge de l'Atlantique | Discus |
|---|---|---|
| Type d'eau | Saltwater | Freshwater |
| Plage de profondeur | 0-985m | — |
| Aire de répartition | North Atlantic Ocean from the Gulf of Mexico and Caribbean north to Norway and Iceland, including the Mediterranean and Black seas. Two spawning populations: western … | 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 … |
| Habitat | Open ocean in the Atlantic, Mediterranean, and Black Sea. Highly migratory, ranging from temperate to subtropical surface waters (0-100m, optimum 15-25°C). Aggregates seasonally to feed … | 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
| Attribut | Thon rouge de l'Atlantique | Discus |
|---|---|---|
| Taille minimale de l'aquarium | — | 250 L |
| Température | — | 26-30 |
| Plage de pH | — | 5.0-7.0 |
| Niveau d'entretien | — | Difficult |
| Tempérament | — | Peaceful |
Informations sur la pêche
| Attribut | Thon rouge de l'Atlantique | Discus |
|---|---|---|
| Poisson de pêche sportive | Oui | Non |
| Cote de combativité | 10/10 | — |
| Record du monde | — | — |
| Teneur en mercure | — | — |
Cuisine & Edibility
Thon rouge de l'Atlantique
The pinnacle of raw fish dining — intensely rich, fatty tuna-o-toro with deep red color and buttery, umami-forward flavor. Commands the highest prices globally in Japanese sushi markets.
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
Thon rouge de l'Atlantique
The Atlantic bluefin tuna is one of the largest bony fish, capable of crossing the Atlantic in under 60 days. A single specimen has sold for over $3 million at Tokyo's fish market. It can maintain a body temperature above the surrounding 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.