Optimization of blue mussel (Mytilus edulis) seed culture using recirculation aquaculture systems |
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Authors: | Ainhoa Blanco Garcia Pauline Kamermans |
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Institution: | 1. Department of Aquaculture, IMARES Wageningen UR—Institute for Marine Resources and Ecosystem Studies, Yerseke, The Netherlands;2. Department of Delta, IMARES Wageningen UR—Institute for Marine Resources and Ecosystem Studies, Yerseke, The Netherlands |
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Abstract: | By introducing recirculation aquaculture systems (RAS) in the nursery phase of the blue mussel (Mytilus edulis) (17–18 mm), we aimed at a similar growth and survival and a similar water quality compared to the commonly used flow‐through systems (FTS). To calculate water flow and size of the biofilter, a series of experiments were done to determine clearance rate (9.26 mL min?1), pseudo faeces threshold (60 000 cells Pavlova lutheri mL?1), nitrogen production (0.00065 mg TAN h?1 ind?1 and 1.6 × 10?5 mg NO2–N h?1 ind?1) and oxygen consumption (0.03 ± 0.01 mg O2 h?1 ind?1). RAS showed no significant differences in water quality (0.06 mg TAN L?1; 7.7 mg O2 L?1) and growth performance of mussel seed specific growth rate (SGR = 5% day?1) after the experimental period of 4 weeks compared with FTS. The low water refreshment, 10% per day, as well as the constant chlorophyll concentrations (9.76 ± 1.06 μg L?1), suggests the potential of RAS as culture system for mussel seed. |
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Keywords: | Mytilus edulis seed marine recirculation system water quality growth rate |
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