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Species Guide

Trucha de Arroyo

Trucha Arroyo
  • Spanish Name: Trucha de Arroyo
  • English Name: Brook Trout
  • Scientific Name: Salvelinus fontinalis
  • Type of specie: Fish
  • Order: Salmoniformes
  • Family: Salmonidae

Habitat

  • Natural: Streams, rivers, and lakes with cold, clean, and well-oxygenated water, especially in mountainous areas.
  • Farming: Ponds and systems with quality water control and constant flow.

General Description

  • Body shape: Fusiform and robust, with a slightly compressed body
  • Distinctive features:

    Variable coloration, typically olive green to brown on the back with light worm-like markings. The sides are lighter with red spots surrounded by a blue halo, and the belly can turn orange during spawning season.

Size and Weight

  • Average length: Usually between 30 and 80 cm, in the wild, it can reach up to 86 cm.
  • Average weight: Commonly between 0.5 and 2 kg, some specimens can weigh up to 8 kg.

Life Cycle

Moderate growth; reaches market size in 10 to 14 months.

Adaptations

Prefers very cold (6-14°C), well-oxygenated waters and is less tolerant to pollution than other trout species..

Juveniles farming systems

Raised in land-based hatcheries with flow-through or recirculation systems.

Grow-out farming systems

Primarily in ponds or flow-through systems in cold rivers.

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  • Geographical distribution
Native to eastern North America, but introduced in Europe, Asia, and South America in cold rivers and lakes.
  • Main producing countries
United States, Canada, France, Italy, China, Japan.
  • Commercial value

Highly valued in aquaculture for its unique flavor, firm flesh, and appeal to sport fishing.

  • Additional uses

By-products: Processed into fresh, frozen, or smoked fillets.

  • Common preparation methods
Ideal for grilling, frying, baking, or steaming.
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