Discus vs Mérou géant de l'Atlantique
Symphysodon discus comparé à Epinephelus itajara
Taxonomy & Classification
| Attribut | Discus | Mérou géant de l'Atlantique |
|---|---|---|
| Nom scientifique | Symphysodon discus | Epinephelus itajara |
| Ordre | Cichliformes | Perciformes/Serranoidei |
| Famille | Cichlidae | Epinephelidae |
| Conservation Status | Least Concern | Vulnerable |
Physical Traits
| Attribut | Discus | Mérou géant de l'Atlantique |
|---|---|---|
| Longueur maximale | 20,0 cm | 250,0 cm |
| Poids maximum | 0,25 kg | 363,0 kg |
| Couleur | 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-brown to olive-green body densely covered with small dark brown spots and irregular blotches; 3–4 faint pale vertical bands on the flanks; juveniles show bolder contrasting yellow and black stripes. |
Habitat & Environment
| Attribut | Discus | Mérou géant de l'Atlantique |
|---|---|---|
| Type d'eau | Freshwater | Saltwater |
| Plage de profondeur | — | 0-100m |
| Aire de répartition | 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 … | Tropical western Atlantic from Florida and the Gulf of Mexico through the Caribbean Sea to Brazil, and eastern Pacific from the Gulf of California to … |
| Habitat | 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. … | Neritic, coral reefs, estuaries |
Aquarium Suitability
| Attribut | Discus | Mérou géant de l'Atlantique |
|---|---|---|
| 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 | Discus | Mérou géant de l'Atlantique |
|---|---|---|
| Poisson de pêche sportive | Non | Oui |
| Cote de combativité | — | 9/10 |
| Record du monde | — | — |
| Teneur en mercure | — | — |
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.
Mérou géant de l'Atlantique
Firm, flaky white flesh with a mild, sweet flavor; harvest is heavily restricted or banned throughout most of its range due to Vulnerable status. Catch-and-release strongly encouraged.
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.
Mérou géant de l'Atlantique
The goliath grouper is the largest grouper in the Atlantic Ocean. This massive reef dweller can swallow prey whole and produces a distinctive booming sound by contracting its swim bladder to ward off intruders.