Hareng de l'Atlantique vs Discus
Clupea harengus comparé à Symphysodon discus
Taxonomy & Classification
| Attribut | Hareng de l'Atlantique | Discus |
|---|---|---|
| Nom scientifique | Clupea harengus | Symphysodon discus |
| Ordre | Clupeiformes | Cichliformes |
| Famille | Clupeidae | Cichlidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribut | Hareng de l'Atlantique | Discus |
|---|---|---|
| Longueur maximale | 45,0 cm | 20,0 cm |
| Poids maximum | 1,1 kg | 0,25 kg |
| Couleur | Deep blue-green to teal back with brilliant iridescent silver flanks and white belly; no spots or bars; scales shed easily; fins are translucent to pale; single dorsal fin positioned mid-body. | 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 | Hareng de l'Atlantique | Discus |
|---|---|---|
| Type d'eau | Saltwater | Freshwater |
| Plage de profondeur | 0-364m | — |
| Aire de répartition | Northern North Atlantic and adjacent Arctic seas, from the eastern seaboard of Canada to Iceland, the North Sea, Baltic Sea, and Barents Sea. Forms massive … | 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 | Pelagic, open ocean in the North Atlantic, from Arctic to subtropical latitudes. Highly migratory, schooling in surface to mid-water depths (0-200m). Undertakes large seasonal migrations. … | 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 | Hareng 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 | Hareng de l'Atlantique | Discus |
|---|---|---|
| Poisson de pêche sportive | Oui | Non |
| Cote de combativité | — | — |
| Record du monde | — | — |
| Teneur en mercure | — | — |
Cuisine & Edibility
Hareng de l'Atlantique
Soft, oily flesh with a rich, pronounced flavor and high omega-3 content. Culturally essential across Northern Europe — pickled, smoked, salted, or prepared as Bismarck herring or rollmops.
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
Hareng de l'Atlantique
The Atlantic herring is one of the most abundant fish species on Earth, forming massive schools of billions of individuals. It has played a crucial role in European history, fueling trade routes and even wars.
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.