Aquaculture Africa 2023

November 13 - 16, 2023

Lusaka, Zambia

RECIRCULATING AQUACULTURE SYSTEMS FOR FOOD SECURITY IN AFRICA: A PRODUCER’S PERSPECTIVE

Martin Gardner*

Blue Ridge Aquaculture

555 Industrial Park Drive

Martinsville,  VA. 24114   USA

 



 Climate change, population growth, youth bulge, widespread unemployment, extreme poverty and hunger are some issues that the  African  continent  struggles with, leading to food insecurity.    

The continent’s reliance on imports continues to grow , with an estimated 85% of food imported.  

 Building aquaculture capacity in the continent will help address food insecurity.  But de spite  decades of international  financial and technical support, SSA countries account for less than 1% of global aquaculture production.  Impacts from disease, climate change and inadequate infrastructure have hindered aquaculture development on the continent. 

 Recirculating Aquaculture S ystems offer an ideal solution for commercial scale aquaculture on the African Continent. 

 Recirculating Aquaculture Systems (RAS) are the logical evolution of open/outdoor fish farming, employing a technological approach to aquaculture where the entire process is brought into an indoor, highly controlled facility.  Every aspect of the operation can be optimized to create an ideal and consistent growing system.   Fish are raised in large culture tanks with filtration systems constantly cleaning and recycling  the water( up to 95%), greatly reducing the amount of fresh water used.  Waste products are filtered and collected, and can be recycled for other agriculture uses.   These systems have a much higher degree of biosecurity,  reducing  the threats of disease and eliminating the need for antibiotics, vaccines and hormones.  Other advantages include predictable production, no seasonality and more resilience to climate change.  These facilities can be located close to urban areas and are inherently scalable.  Unlike other types of agriculture, the jobs the systems create are not seasonal, but are long term, secure technical careers with upward mobility . 

 Blue Ridge Aquaculture is uniquely positioned to offer insights into RAS Opportunities and Challenges for the African Continent

 Blue Ridge Aquaculture has operated a RAS facility for over thirty years.  Our company produces 2,500 tons of tilapia per year( WFE).  We have grown to be a completely integrated company with our own b roodstock program (23 generations), hatchery, nursery, feed mill and distribution.  Our biosecurity protocols have prevented disease  from our system  for over twenty years, allowing us to produce with antibiotics, vaccines and hormones.   We enjoy better KPI’s than any other operation in the industry, with mortality of less than 3%, biologic FCR of 1.45 and fast growth with hatch to harvest in under 8 months.  We have been through our challenges and have participated  in  and witnessed the  evolution of the industry.  This gives us unique insight into the opportunities and challenges of establishing RAS in Africa .  We are confident that Recirculating Aquaculture Systems offer the best opportunity to develop sustainable aquaculture on the African Continent.