Date of Award

5-2008

Document Type

Thesis

Degree Name

Master of Science (MS)

Legacy Department

Biosystems Engineering

Advisor

Brune, David E.

Committee Member

Schwedler , Thomas E.

Committee Member

Kirk , Kendall

Abstract

The objective of this research was to further modify and develop the Clemson Partitioned Aquaculture System (PAS) design resulting in a system design capable of yielding economic feasible production rates of marine shrimp, Litopenaeus vannamei, in excess of 45,000[kg/ha] (40,000[lb/ac]) within a 5 month culture period while minimizing impact on the surrounding environment. The operation of the pilot-scale high-rate prototype shrimp culture system showed that it is possible to combine chemoautotrophic and photoautotrophic processing of feed and waste products within the system. A total of 23,400[kg/ha] (20,800[lb/ac]) were harvested at the end of the season (149 days from PL-8/9 shrimp to an average harvest weight of 11[g/shrimp]). The average feed rate throughout the season was 736.1[kg/(ha*day)] (649[lb/(ac*day)]). With peak feed rates of 1864.6[kg/(ha*day)] (1645[lb/(ac*day)]). The denitrification unit had the capacity to reduce 10[(g-Nitrogen)/(m_(shrimp-unit)*day)], at a nitrate concentration of 47[(mg-Nitrate-N)/L]. At the end of the season the nitrification reactor had the capacity to nitrify up to 13.5[(g-Nitrogen)/(m_(shrimp-unit)*day)] at 1000[mg/L] nitrifying biomass concentration. A design for an optimal combined photoautotrophic/ chemoautotrophic system for high-rate, zero-discharge culture of marine shrimp was proposed. This system is projected to provide a capacity to process a maximum nitrogen input of 12[(g-Nitrogen)/(m_(shrimp-unit)*day)] yielding a maximum feed application rate 2,343[(kg-feed)/(ha*day)] (2,109[(lb-feed)/(ac*day)]), yielding a maximum projected shrimp yield of 87,889[(kg-shrimp)/ha] (79,087[(lb-shrimp)/ac]) within a 150 day growing season.

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