The use of microalgae in aquaculture has increased in the past decade, because of the importance of microalgae as the primary source of nutrition for all stages of filter-feeder bivalves and the larval and juvenile stages of fish and shrimp. The quality of feed is linked to survival and mortality rates of larval stages, development rate, egg viability and other performance parameters of the species cultured.
For a constant supply of fresh microalgae, aquaculture hatcheries generally have an in-house microalgae production facility, generally small in scale and up to 100 square meters in area. In the early 1990s, maintaining a microalgae production facility was estimated by researchers to account for an average of 30 percent, and up to 60 percent of the total budget of aquaculture hatcheries and nurseries, and the cost of microalgae biomass in aquaculture hatcheries was estimated at $50 to $400 (U.S.) per kg dry weight (DW) depending on the applied scale…
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