Tetraselmis suecica

Tetraselmis suecica is a unicellular green microalga belonging to the Chlorodendrophyceae family. It is a fundamental species in marine biotechnology and aquaculture, widely recognized for its robust growth performance and high nutritional density, which makes it an ideal feed for various aquatic larvae.

Originating from marine coastal environments, this species is found naturally in various global waters. Its natural distribution across diverse habitats has equipped it with a remarkable ability to survive in a wide range of salinity and temperature conditions, facilitating its successful commercial production in various geographical regions.

Botanically, it consists of ovoid cells equipped with four flagella, which facilitate active swimming. The internal structure includes a large cup-shaped chloroplast and a pyrenoid, essential for photosynthesis. The cell membrane is covered with fine scales, providing structural integrity to the micro-organism during its life cycle.

Cultivation requires specific agronomic standards, including well-managed photoperiods and nutrient-rich culture media, usually based on the F/2 formulation. Essential factors for success include maintaining temperatures between 18°C and 24°C and ensuring proper gas exchange through continuous air bubbling, which prevents the sedimentation of the algae.

In terms of economic use, Tetraselmis suecica is essential for hatcheries. Its biochemical profile is rich in proteins, carbohydrates, and long-chain polyunsaturated fatty acids, such as EPA. Beyond feed, it is currently being researched for its potential in wastewater treatment and the sustainable production of bio-based chemicals.

• Superior nutritional profile for filter-feeders and larvae.
• High tolerance to variations in environmental conditions.
• Ease of scaling in mass culture systems.
• Significant potential in pharmaceutical and cosmetic industries.