Trucha de arroyo vs Pez rojo

Salvelinus fontinalis comparado con Carassius auratus

Taxonomy & Classification

Atributo	Trucha de arroyo	Pez rojo
Nombre Científico	Salvelinus fontinalis	Carassius auratus
Orden	Salmoniformes	Cypriniformes
Familia	Salmonidae	Cyprinidae
Conservation Status	Least Concern	Least Concern

Physical Traits

Atributo	Trucha de arroyo	Pez rojo
Longitud Máxima	86,0 cm	45,0 cm
Peso Máximo	6,6 kg	2,0 kg
Color	Olive-green back with distinctive worm-like yellowish vermiculations; flanks dotted with red spots ringed by blue halos; lower fins are orange-red with bold black and white leading edges.	Brilliant orange to deep golden-yellow body with a metallic sheen across all scales; domesticated forms range from white, yellow, and red to black and calico bicolor combinations.

Habitat & Environment

Atributo	Trucha de arroyo	Pez rojo
Tipo de Agua	Freshwater & Saltwater	Brackish
Rango de Profundidad	15-27m	0-20m
Distribución Geográfica	Native to cold Appalachian streams and boreal rivers of eastern Canada and the northeastern United States. Anadromous sea-run populations occur along the Atlantic coast; introduced …	Originates from rivers and lakes of eastern China and possibly Korea; domesticated for over 1,000 years. Wild relatives inhabit slow rivers, ponds, and slightly brackish …
Hábitat	Clear, cold mountain streams and lakes of eastern North America and the Great Lakes basin. Prefers cold, highly oxygenated water (8-18°C) over gravel and cobble. …	Ponds, lakes, slow rivers across East Asia; introduced worldwide. Tolerates wide temperature range (10-30°C) and turbid water. Prefers shallow, vegetated areas with soft substrates. Domestic …

Aquarium Suitability

Atributo	Trucha de arroyo	Pez rojo
Tamaño Mínimo del Acuario	—	150 L
Temperatura	—	10-24
Rango de pH	—	6.0-8.0
Nivel de Cuidado	—	Easy
Temperamento	—	Peaceful

Información de Pesca

Atributo	Trucha de arroyo	Pez rojo
Pez de Pesca Deportiva	Sí	Sí
Clasificación de Pelea	5/10	—
Récord Mundial	—	—
Nivel de Mercurio	—	—

Cuisine & Edibility

Trucha de arroyo

Delicate, sweet flesh with a nutty, mild flavor; low fat and fine texture. One of the most prized freshwater eating fish in North America — best pan-fried simply in butter with herbs.

Pez rojo

Not consumed — a classic ornamental aquarium and pond fish; its vivid color and hardy nature make it one of the world's most popular decorative species.

Species Overview

Trucha de arroyo

The brook trout is actually a char, native to cold, clean streams of eastern North America. Its olive-green body with distinctive worm-like markings (vermiculations) and red spots with blue halos make it one of the most beautiful freshwater fish.

Pez rojo

The goldfish was one of the first fish to be domesticated, with selective breeding in China dating back over 1,000 years. Despite common misconceptions, goldfish can live 10-15 years with proper care and require far more space than a small bowl.