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ISSN Druckformat: 1521-9429
ISSN Online: 1940-4328
Indexed in
Microalgae as a photoautotrophic component in systems of closed material cycles
ABSTRAKT
A closed equilibrated life support system has been developed. On the basis of a continuous microalgal culture as primary producer, an invertebrate level with Daphnia grazers as the primary predator, a vertebrate level with swordtail fish as a secondary predator and a natural degrader population were combined to close the trophic chain. It was demonstrated that a closed aquatic system, volume below 30 L, supplied with light energy only can produce sufficient food to support the survival of 10 g of vertebrates. Model project of bioenergetically and ecologically balanced agriculhiral production plant based on the principle of a synergistic production is described. Depending on proper function of design, the self-balancing ability of closed systems containing microalgae as a primary producer represent a means for tracing the material cycle within aquatic microecosystems.