Shellfish Breeding and Hatchery Management (2+1)

28.2.1 Nutrient Requirement for spirulina culture

Nutrients

Sodium bicarbonate: 4.50(g/l)

Dipotassium phosphate: 0.50 (g/l)

Sodium carbonate: 1.5 (g/l)

Sodium nitrate: 1.5 (g/l)

Magnesium sulphate: 1 (g/l)

Ferrous sulphate: 0.01 (g/l)

Potassium sulphate: 1 (g/l)

Calcium sulphate: 0.04 (g/l)

The pH is maintained between 9.5 & 10.5 . Spirulina is reported to use bicarbonate as the carbon source for photosynthesis. Laboratary studies have shown the difference in growth of spirulina at the level of 4.5 g/l of bicarbonate.

Mass Culture:

For mass culture of spirulina, a simplified culture is recommended by adding chemicals like sodium carbonate 4.00, Magnesium sulphate 0.20, N:P:K(15:15:15) 100 zincsulphate 0.01 EDTA (Ethylene diamine fetre acctic acid) 0.08 (allg/litre).