Hareng de l'Atlantique vs Guppy

Clupea harengus comparé à Poecilia reticulata

Taxonomy & Classification

Attribut	Hareng de l'Atlantique	Guppy
Nom scientifique	Clupea harengus	Poecilia reticulata
Ordre	Perciformes	Cyprinodontiformes
Famille	Clupeidae	Poeciliidae
Conservation Status	Least Concern	Least Concern

Physical Traits

Attribut	Hareng de l'Atlantique	Guppy
Longueur maximale	45,0 cm	6,0 cm
Poids maximum	1,1 kg	0,002 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.	Males display highly variable iridescent patterns on a gray-olive body; spots, reticulations, and solid patches of red, orange, blue, green, and black; flowing fantail fins often multicolored.

Habitat & Environment

Attribut	Hareng de l'Atlantique	Guppy
Type d'eau	Saltwater	Brackish
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 …	Native to freshwater and slightly brackish streams of northern South America including Venezuela, Trinidad, and Barbados. Tolerates a wide range of salinities; introduced on every …
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. …	Slow-moving rivers, streams, ponds, and drainage ditches of northern South America (Venezuela, Trinidad). Warm, shallow water with dense vegetation (22-28°C). Highly adaptable; introduced worldwide.

Aquarium Suitability

Attribut	Hareng de l'Atlantique	Guppy
Taille minimale de l'aquarium	—	38 L
Température	—	22-28
Plage de pH	—	6.8-7.8
Niveau d'entretien	—	Easy
Tempérament	—	Peaceful

Informations sur la pêche

Attribut	Hareng de l'Atlantique	Guppy
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.

Guppy

Not consumed — a tiny ornamental livebearer prized by hobbyists for its dazzling color variations and ease of breeding in the aquarium.

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.

Guppy

The guppy is one of the most widely distributed tropical fish, found in freshwater habitats across the Americas. Males display vivid colors and elaborate tail patterns to attract females. They are live-bearers, giving birth to free-swimming fry.