Algae for Aquaculture

With the global population expected to reach nine billion by 2050, the demand for animal protein, particularly from fish, is continuing to rise. Increasing demand is placing severe stress on natural fish populations and our oceans' ability to sustainably meet fish supply needs.  Expanding aquaculture production is bridging the gap between supply and demand. For the first time, aquaculture production now exceeds wild capture fish, and is expected to continue its rapid expansion into the foreseeable future.

Fishmeal, the food derived from processing wild caught fish is the primary source of protein in high value farmed fish diets. Demand for fishmeal will double by 2025, and could outpace supply.  Fishmeal costs have quadrupled since 2000 and are expected to continue to rise at a 10% annual growth rate. Given these trends, the aquaculture industry urgently needs to develop more economical aqua feed alternatives to reduce costs and decrease pressure on strained marine resources.  

The Algae Alternative

Algae, a natural food for fish, represent a promising replacement for fishmeal in future aqua feed blends.  Algae can provide the high protein content and digestibility necessary for high value fish production, along with beneficial fatty acids and essential vitamins and minerals. By implementing scalable technologies to utilize resources more efficiently, algae production at scale offers a more favorable economic and environmentally attractive alternative to existing fishmeal sources.
General Atomics Electromagnetic Systems (GA-EMS) offers a range of design and engineering services, and a catalog of high yield algae strains to implement end-to-end scalable algae growth platforms to meet future aqua feed requirements.  GA-EMS' proven technologies provide greater yields per hectare and higher protein content at lower production and operating costs relative to standard algae production practices.

Kauai Algae Test Facility Designed and Constructed by GA
  • Scalable, high yield production potential
  • High CO2  capture and utilization efficiencies
  • Effective utilization of non-arable land and poor quality water
  • High yield algae strains
  • Amino acid profiles comparable to fishmeal, with no toxins
  • Contamination mitigation for sustained high growth rates