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| Effect of organic fertilizer and algae addition to tilapia aquaculture water on the community structure of phytoplankton |
| Received:March 22, 2017 |
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| KeyWord:chicken manure;cattle manure;tilapia;phytoplankton;structural characteristics |
| Author Name | Affiliation | E-mail | | MENG Shun-long | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China
Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China | | | LI Dan-dan | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | QIU Li-ping | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | HU Geng-dong | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | FAN Li-min | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | SONG Chao | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | WU Wei | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China
Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China | | | ZHENG Yao | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China | | | CHEN Jia-zhang | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China
Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China | chenjz@ffrc.cn | | BING Xu-wen | Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture
Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Chinese Academy of Fishery Sciences, Wuxi 214081, China
Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China | bingxw@ffrc.cn |
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| Abstract: |
| The aim of this study was to explain the mechanism by the addition of organic fertilizers and algae to aquaculture water which could increase the yield, raise efficiency, and help in waste reclamation. For this purpose, experiments were carried out using chicken manure and cattle manure as organic fertilizers, and Chlorella vulgaris and Scenedesmus quadricauda as exogenous algae. The experiments used the following groups:Control group, algae group(Algae), a mix of chicken manure and algae group(Chicken-A), a mix of cattle manure and algae group(Cattle-A), and a mix of chicken-cattle manure and algae group(C-C-A). The Shannon-Wiener diversity index and Pielou evenness index were used to evaluate the effect on phytoplankton community structure of adding organic fertilizers and algae to tilapia aquaculture water. The results showed that there were 19, 26, 34, 27, and 31 species of phytoplankton in the Control, Algae, Chicken-A, Cattle-A, and C-C-A groups, respectively, following the order Chicken-A > C-C-A > Cattle-A > Algae > Control. The total abundance of phytoplankton in the Control, Algae, Chicken-A, Cattle-A, and C-C-A groups changed from 1.52×107 to 6.99×107 cells·L-1, 4.18×107 to 6.58×107 cells·L-1, 1.24×107 to 9.58×107 cells·L-1, 4.37×106 to 5.36×107 cells·L-1, and 1.06×107 to 8.63×107 cells·L-1, respectively. The total abundance of phytoplankton in the control and all the test groups first decreased and then increased. The proportion of cyanophyta accounting for the total phytoplankton population in the Control group first increased and then decreased, and that in the Algae, Chicken-A, Cattle-A, and C-C-A groups decreased gradually. Moreover, the overall decrease in the cyanophyta proportion was higher in the test groups than in the Control group, with the largest decrease in the Chicken-A group. The Shannon-Wiener and Pielou indexes were higher in the test groups than in the Control group. The former followed the order Chicken-A > C-C-A > Cattle-A > Algae > Control. These results showed that the use of organic fertilizers and algae in tilapia aquaculture water could inhibit cyanophyta growth, facilitate chlorophyta growth, and improve phytoplankton community structure. Chicken manure was found to be better than cattle manure or a mixture of chicken manure and cattle manure. |
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