The Israeli Journal of Aquaculture - Bamidgeh 54(2), 2002
The Annual Dan Popper Symposium
“RAS-POTENTIAL ”: A TOOL FOR ANALYZING PRODUCTION AND
FINANCIAL PERFORMANCE OF RECIRCULATING FISH CULTURE SYSTEMS
Daniel Conijeski, Noam Mozes*
Israel Oceanographic and Limnological Research , National Center for Mariculture,
P.O.Box 1212, Eilat 88112, Israel
Recirculating aquaculture systems (RAS) have generated much interest in recent years due to
their ability to raise fish in a controlled environment. Further, fish density can be high in RAS,
resulting in high yields and reducing the investment and extent of culture units and associated
buildings. Because RAS conserve heat and water, the growing season of many commercial
species can be extended, there is flexibility in locating the RAS and water costs are reduced.
Notwithstanding these advantages, the technology of RAS is still poorly understood by
many farmers. The high investment, coupled with a lack of comprehensive information on the
industrial and economic performance of these systems, has raised skepticism about the economic
competitiveness of this technology.
The National Center for Mariculture, together with the Fisheries and Aquaculture
Department of the Israeli Ministry of Agriculture, has developed a standard form for evaluating
commercial RAS called “RAS-Potential”. RAS-Potential involves an official set of production
and economical indicators to help both private parties and the government make investment
decisions. These indicators provide the means to compare technologies, to benchmark fish production
costs in RAS and to follow-up standard measurements of performance efficiency of
RAS farms over time.
*Corresponding author. E-mail: email@example.com