Evaluation of the potential for development of an integrated semi-closed recirculating culture system for abalone (Haliotis asinina), seabass (Lates calcarifer), oyster (Saccostrea cucullata) and seaweed (Ulva reticulata) | |
| Author | Phung The Trung |
| Call Number | AIT Thesis no.AQ-10-03 |
| Subject(s) | Abalone culture Sea basses Oysters Marine algae |
| Note | A thesis submitted in partial fulfi llment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AQ-10-03 |
| Abstract | The study was carried out at the Asian Inst itute of Technology fro m November 2009 to March 2010 to evaluate the potential for development of an integrated land-based semi- closed recirculating aquaculture system whic h consisted of abalone, seabass, oyster and Ulva compartments. Abalone and s eabass fed artificial diets. Water in abalone tanks was flushed into the fish tank then filled by water pumped from seaweed tank. Water in the oyster tank was pumped to the seaweed tank then filled by wate r pumped from fish tank. The system was in three replicates. Water samples were taken from all compartments weekly for measurement of TAN, NO 2 -N and NO 3 -N. Ulva and cultured animals were sampled weekly and bi -monthly to determine their growth. Although Ulva showed a good ability to remove TAN (> 0.3 mg/L/day) to support their growth (> 10% day), nitrogen transformation under the effects of nitrobacteria resulted in the lack of T AN (< 0.2 ppm) and high concentration of nitrite and nitrate nitrogen (4.5 ppm maximum) accumulated in culture water. Therefore, all cultured specie s had poor growth and survival rates and the loss of nitrogen in feed supply was as high as in monoculture systems (60%). In order to improve system performance, recirculated water volume should be increased and water retention time should be shortened to maximize nitrogen removal efficiency of Ulva. |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AQ-10-03 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Aquaculture and Aquatic Resources Management (AQ) |
| Chairperson(s) | Gallardo, Wenresti G. |
| Examination Committee(s) | Yakupitiyage, Amararatne;Thakur, Dhirendra P.;Ganmanee, Monthon |
| Scholarship Donor(s) | Sweden (Sida) |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2010 |