Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture
Designing good recirculating aquaculture systems (RASs) is challenging in shrimp aquaculture. In this study, two sets of RASs were constructed using sea cucumber nursery tanks for rearing <i>Litopenaeus vannamei</i>. Recirculating aquaculture was supported by key technologies such as sew...
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MDPI AG
2021-10-01
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author | Yishuai Du Jianping Xu Li Zhou Fudi Chen Tianlong Qiu Jianming Sun |
author_facet | Yishuai Du Jianping Xu Li Zhou Fudi Chen Tianlong Qiu Jianming Sun |
author_sort | Yishuai Du |
collection | DOAJ |
description | Designing good recirculating aquaculture systems (RASs) is challenging in shrimp aquaculture. In this study, two sets of RASs were constructed using sea cucumber nursery tanks for rearing <i>Litopenaeus vannamei</i>. Recirculating aquaculture was supported by key technologies such as sewage collection and aeration systems adapted to the rectangular tanks and technologies for the removal of sewage, shrimp shells, and dead individuals. Six-hundred and eighty-five thousand juveniles were selected for rearing in the newly constructed RASs, where the average stocking density was 1013 shrimp/m<sup>3</sup>. During the recirculating aquaculture period of 53 days, the water temperature of the tanks was 24–31 °C, the salinity was 25–32‰, the pH was 6.4–8.2, the DO was ≥ 4.9 mg/L, the concentration of total ammonia nitrogen (TAN) was maintained between 0.17 and 4.9 mg/L, the concentration of nitrite nitrogen (NO<sub>2</sub>-N) was between 0.12 and 4.7 mg/L, and the total number of <i>Vibrio</i> bacteria remained between 330 and 9700 cfu/mL. At the end of the experiment, the final average weight of individual shrimp was 13.43 g, and the average yield reached 12.92 kg/m<sup>3</sup>. The great improvement in growth performance marks a breakthrough in RAS technology of shrimp, and it supports the use of an innovative methodology for the retrofitting and utilization of idle sea cucumber nursery tanks. |
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spelling | doaj.art-e498c160af8343a7973882bc7b5cda512023-11-22T17:19:14ZengMDPI AGApplied Sciences2076-34172021-10-011120947810.3390/app11209478Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> AquacultureYishuai Du0Jianping Xu1Li Zhou2Fudi Chen3Tianlong Qiu4Jianming Sun5CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaCAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaCAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaCAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaCAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaCAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai RD, Qingdao 266071, ChinaDesigning good recirculating aquaculture systems (RASs) is challenging in shrimp aquaculture. In this study, two sets of RASs were constructed using sea cucumber nursery tanks for rearing <i>Litopenaeus vannamei</i>. Recirculating aquaculture was supported by key technologies such as sewage collection and aeration systems adapted to the rectangular tanks and technologies for the removal of sewage, shrimp shells, and dead individuals. Six-hundred and eighty-five thousand juveniles were selected for rearing in the newly constructed RASs, where the average stocking density was 1013 shrimp/m<sup>3</sup>. During the recirculating aquaculture period of 53 days, the water temperature of the tanks was 24–31 °C, the salinity was 25–32‰, the pH was 6.4–8.2, the DO was ≥ 4.9 mg/L, the concentration of total ammonia nitrogen (TAN) was maintained between 0.17 and 4.9 mg/L, the concentration of nitrite nitrogen (NO<sub>2</sub>-N) was between 0.12 and 4.7 mg/L, and the total number of <i>Vibrio</i> bacteria remained between 330 and 9700 cfu/mL. At the end of the experiment, the final average weight of individual shrimp was 13.43 g, and the average yield reached 12.92 kg/m<sup>3</sup>. The great improvement in growth performance marks a breakthrough in RAS technology of shrimp, and it supports the use of an innovative methodology for the retrofitting and utilization of idle sea cucumber nursery tanks.https://www.mdpi.com/2076-3417/11/20/9478<i>Litopenaeus vannamei</i>recirculating aquaculture systemintensive shrimp cultureindustrial aquacultureretrofit |
spellingShingle | Yishuai Du Jianping Xu Li Zhou Fudi Chen Tianlong Qiu Jianming Sun Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture Applied Sciences <i>Litopenaeus vannamei</i> recirculating aquaculture system intensive shrimp culture industrial aquaculture retrofit |
title | Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture |
title_full | Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture |
title_fullStr | Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture |
title_full_unstemmed | Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture |
title_short | Retrofitting Sea Cucumber Nursery Tanks to Recirculating Aquaculture Systems for Highly Intensive <i>Litopenaeus vannamei</i> Aquaculture |
title_sort | retrofitting sea cucumber nursery tanks to recirculating aquaculture systems for highly intensive i litopenaeus vannamei i aquaculture |
topic | <i>Litopenaeus vannamei</i> recirculating aquaculture system intensive shrimp culture industrial aquaculture retrofit |
url | https://www.mdpi.com/2076-3417/11/20/9478 |
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