An integrated recirculating aquaculture system (RAS) for land-based fish farming: The effects on water quality and fish production

被引:104
作者
Zhang, Shi-Yang [1 ]
Li, Gu [1 ]
Wu, Hui-Bi [1 ,2 ]
Liu, Xing-Guo
Yao, Yan-Hong [1 ]
Tao, Ling [1 ]
Liu, Huang [2 ]
机构
[1] Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
[2] Chinese Acad Fishery Sci, Fishery Machinery & Instrument Res Inst, Shanghai 200092, Peoples R China
关键词
Recirculating aquaculture system; Culture efficacy; Water quality; Constructed wetland; Sensitive species; CONSTRUCTED WETLANDS; ENVIRONMENTAL-IMPACT; TEMPERATURE; GROWTH; PERFORMANCE; EFFLUENTS; AMMONIA; NITRITE;
D O I
10.1016/j.aquaeng.2011.08.001
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
To mitigate the serious water pollution caused by the rapid expansion of the aquaculture industry in recent years, the development of improved aquaculture systems with more efficient water usage and less environmental impact has become essential. In this study, a land-based recirculating aquaculture system (RAS) was established that consisted of purification units (i.e., a primary biological pond, two parallel horizontal subsurface flow constructed wetlands [CWs], and a long ecological ditch) and 4-5 series-connected recirculating ponds. This system was mainly designed to stock channel catfish (Ictalurus punctatus), fifteen spine stickleback (Spinibarbus sinensis) and yellow catfish (Pelteobagrus fulvidraco), and the culture efficacy was evaluated based on a 2-year field experiment covering two growing seasons. According to the results, the primary biological pond played a role in sedimentation or nutrient retention, although this was not as evident when the CWs were functioning. The water flowing through the wetland system at a hydraulic loading rate (HLR) of 600 mm/day displayed lower values for the temperature, pH, dissolved oxygen (DO), suspended solids, organic matter and nutrients, whereas the electrical conductivity (EC) was higher, suggesting the accumulation of dissolved solids in the system. Due to the recirculation treatment, the trophic status of the recirculating ponds increased gradually along the direction of the flow and was notably lower in comparison to the control. As a result, the fish production responded to the variation of the water quality, which was reflected in the measurements of culture efficacy (final weight, survival rate, SGR and yield). The three main rearing species showed a decreasing trend along the direction of the flow, which was higher compared to the control, whereas an opposite trend was observed for filter-feeding fish. A Pearson correlation analysis revealed that the main culture species were inclined to live in meso- or oligotrophic conditions, and the silver carp adapted to more eutrophic conditions. Because RAS can provide better environmental conditions year-round, the present culture method could be more suitable for species that are sensitive to water quality in typical subtropical areas. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:93 / 102
页数:10
相关论文
共 49 条
[1]   THE USE OF TRANSFORMATIONS [J].
BARTLETT, MS .
BIOMETRICS, 1947, 3 (01) :39-52
[2]   Shrimp farming in China: Operating characteristics, environmental impact and perspectives [J].
Biao, Xie ;
Yu, Kaijin .
OCEAN & COASTAL MANAGEMENT, 2007, 50 (07) :538-550
[3]   Effects of water temperature and dissolved oxygen on daily feed consumption, feed utilization and growth of channel catfish (Ictalurus punctatus) [J].
Buentello, JA ;
Gatlin, DM ;
Neill, WH .
AQUACULTURE, 2000, 182 (3-4) :339-352
[4]   Environmental impact of aquaculture and countermeasures to aquaculture pollution in China [J].
Cao, Ling ;
Wang, Weimin ;
Yang, Yi ;
Yang, Chengtai ;
Yuan, Zonghui ;
Xiong, Shanbo ;
Diana, James .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2007, 14 (07) :452-462
[5]   Comparative growth and welfare in rainbow trout reared in recirculating and flow through rearing systems [J].
d'Orbcastel, Emmanuelle Roque ;
Person-Le Ruyet, Jeanine ;
Le Bayon, Nicolas ;
Blancheton, Jean-Paul .
AQUACULTURAL ENGINEERING, 2009, 40 (02) :79-86
[6]   The design, management and production of a recirculating raceway system for the production of marine shrimp [J].
Davis, DA ;
Arnold, CR .
AQUACULTURAL ENGINEERING, 1998, 17 (03) :193-211
[7]  
*FAO, 2008, WORLD REV FISH AQ
[8]   Temperature influences swimming speed, growth and larval duration in coral reef fish larvae [J].
Green, BS ;
Fisher, R .
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 2004, 299 (01) :115-132
[9]   Influence of seasonal temperature on the repeat swimming performance of rainbow trout Oncorhynchus mykiss [J].
Jain, KE ;
Farrell, AP .
JOURNAL OF EXPERIMENTAL BIOLOGY, 2003, 206 (20) :3569-3579
[10]   Nitrite disrupts multiple physiological functions in aquatic animals [J].
Jensen, FB .
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY, 2003, 135 (01) :9-24