Sizing of bead filters which are used for clarification and biofiltration in recirculating aquaculture production systems is based upon their volumetric nitrification rates. Attempts to improve these carrying capacities have been thwarted by the inherent nature of the media. This project will… More

A Shortfall in marine fisheries production is driving the development of aquaculture technologies on many fronts. Recirculating systems are regarded as critical components of many development schemes. However, interest and use of recirculating systems for production of marine organisms have lagged… More

A Shortfall in marine fisheries production is driving the development of aquaculture technologies on many fronts. Recirculating systems are regarded as critical components of many development schemes. However, interest and use of recirculating systems for production of marine organisms have lagged… More

Commercial-scale marine aquaculture has the potential to close the gap between an increasing demand for high quality seafood products and a marine fisheries near maximum sustainable yields. Intensive recirculation systems are regarded as one critical component of a commercially viable marine… More

Commercial microalgal production still relies heavily on batch culture methods. Recent investigations have been successful in the development of enclosed photobioreactors, though mostly still at the research level. Due to several factors, production costs of continuous culture methods remain high… More

Commercial microalgal production still relies heavily on batch culture methods. Recent investigations have been successful in the development of enclosed photobioreactors, though mostly still at the research level. Due to several factors, production costs of continuous culture methods remain high… More

NON-TECHNICAL SUMMARY: There is an immediate demand for floating bead filters with improved single pass removal characteristics for wastewater treatment. AST has identified several potential areas of bead filter application that are inhibited by poor single pass removal of fine particles. These… More

Commercial-scale marine aquaculture has the potential to close the gap between an increasing demand for high quality seafood products and marine fisheries near maximum sustainable yields. In flow through aquaculture systems, the release of nitrate to nearby streams, lakes, etc. can be detrimental to… More

Commercial-scale marine aquaculture has the potential to balance the increasing demand for high-quality seafood products with the harvest capacity of our nation¿s oceans. However, water reuse in recirculating aquaculture systems (RAS) is limited by the accumulation of nitrate (NO3), which is toxic… More

Commercial-scale marine aquaculture has the potential to balance the increasing demand for high-quality seafood products with the limited harvest capacity of our nations oceans. However, water reuse in recirculating aquaculture systems (RAS) is limited by the accumulation of nitrate, which can be… More

This Small Business Technology Transfer Phase I research will deveop and commercialize a robust, continuous culture production system for rotifers (Brachionus rotundiformis; s-type). The inability to supply microalgal, zooplankton and rotifers feeds cost-effectively and consistently continues to be… More

As fish species with greater sensitivity to water quality are cultured in recirculating aquaculture systems (RAS), it becomes vital to improve fine solids capture. Additionally, phosphorous levels in the discharge from RAS are often high (per EPA guidelines and regulations) and can lead to… More