Filamentous algae as a feed additive for marine invertebrates: An opportunity for Russian mariculture

The demand for feed for aquatic invertebrates and fish in Russia is about 280 thousand tons per year. To increase the nutritional value of feed, manufacturers have begun to use plant materials, and scientists recommend adding algae as a source of essential fatty acids. Potential for these purposes is represented by filamentous brown algae from the order Ectocarpales, which are widespread in coastal areas of the ocean, but have not yet been considered for cultivation. Given their small size, varying from tens of micrometers to several millimeters, algae can be effectively grown in photobioreactors with controlled parameters. This allows maintaining optimal conditions for growth and obtaining products all year round. Experts have determined the optimal lighting and temperature parameters for three types of filamentous algae - Streblonema sp., Streblonema corymbiferum and Laminariocolax ...