Tiostrea chilensis

Tiostrea chilensis is a species of oyster native to the coasts of Chile and New Zealand. It is commonly known as the Chilean oyster or Bluff oyster in New Zealand.

Taxonomy

The scientific name Tiostrea chilensis was given by the French zoologist Alcide d'Orbigny in 1846. It belongs to the family Ostreidae, the true oysters.

Description

Tiostrea chilensis is a bivalve mollusk with a rough, irregularly shaped shell. The shell's exterior is greyish-white to brown, while the interior is smooth and shiny, often displaying a mother-of-pearl sheen. The oysters can reach up to 10 cm in length.

Distribution and Habitat

Tiostrea chilensis is found along the coasts of Chile and New Zealand. In New Zealand, it is particularly associated with the Foveaux Strait, where it is commercially harvested. The oysters prefer subtidal rocky habitats and can be found at depths of up to 80 meters.

Commercial Use

The Tiostrea chilensis is a commercially important species, especially in New Zealand where it is known as the Bluff oyster. The oysters are harvested both for local consumption and for export. They are considered a delicacy and are often consumed raw.

Conservation

Overfishing has led to a decline in Tiostrea chilensis populations, particularly in New Zealand. Efforts are being made to manage and conserve the species, including the implementation of size and catch limits.

See Also

• Oyster farming in New Zealand
• Aquaculture in New Zealand
• Aquaculture in Chile