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凡纳滨对虾精养池养殖水体的富营养状况时空差异
引用本文:孙成波,李义军,李婷,王平,徐安敏,孙承志,李咏.凡纳滨对虾精养池养殖水体的富营养状况时空差异[J].热带生物学报,2013,4(2):105-110.
作者姓名:孙成波  李义军  李婷  王平  徐安敏  孙承志  李咏
作者单位:[1]广东海洋大学水产学院,广东湛江524088 [2]海南省昌江南疆生物技术有限公司,海南三亚572000
基金项目:科技部农业科技成果转化资金项目(2010GB2E200382); 海南省重点科技计划项目(090706); 湛江市财政资金科技专项竞争性分配项目(2011B0101)
摘    要:监测了凡纳滨对虾养殖全过程精养虾池养殖水体中溶解态无机氮(DIN)、溶解态活性磷酸盐(DIP)、水体的化学需氧量(COD)、pH、溶解氧(DO)、营养状态综合指数(E)等理化指标的变化,以及养殖后期水体中各理化因子的水平、垂直分布。结果表明:在凡纳滨对虾养殖过程中,DIN质量浓度为(0.093±0.076)~(1.736±1.134)mg·L–1,DIP质量浓度为(0.062±0.271)~(0.380±0.276)mg·L–1,COD质量浓度为(0.940±0.934)~(9.653±1.317)mg·L–1,E:(1.198±4.250)~(1267.537±68.534),富营养化程度随着养殖时间的增加逐渐增强,20d时各项指标均达到较大值,之后逐渐降低,到养殖后期又逐渐增强,营养状态综合指数(E)达到最大值;养殖后期,富营养化程度在水平方向随着靠近排污口的方向逐渐增强,营养状态综合指数(E):(343.230±1.659)~(2786.072±55.241),在垂直方向随着靠近池底的方向逐渐增强,营养状态综合指数(E):(2046.687±5.568)~(2789.524±7.166)。

关 键 词:精养虾池  富营养化  溶解态无机氮(DIN)  溶解态活性磷酸盐(DIP)  水体的化学需氧量(COD)  营养状态综合指数(E)

Spatial and Temporal Discrepancy of Eutrophication of Water in Intensive Cultural Ponds for Litopenaeus vannamei
SUN Chengbo,LI Yijun,LI Ting,WANG Ping,XU Anmin,SUN Chengzhi,LI Yong.Spatial and Temporal Discrepancy of Eutrophication of Water in Intensive Cultural Ponds for Litopenaeus vannamei[J].Journal of Tropical Biology,2013,4(2):105-110.
Authors:SUN Chengbo  LI Yijun  LI Ting  WANG Ping  XU Anmin  SUN Chengzhi  LI Yong
Institution:1. College of Fisheries,Guangdong Ocean University,Zhanjiang 524088,China; 2. Hainan Changjiang Nanjiang Bio-Technology Co. ,Ltd,Sanya 572000,China)
Abstract:The water in shrimp ponds for intensive culture of shrimp Litopenaeus vannamei was monitored in terms of DIN,DIP,COD,pH,DO and Nutritional Status Composite Index ( E) in the whole course of shrimp culture as well as horizontal and vertical distribution of physical and chemical indices at the late cultural stage. In the whole course of shrimp culture in the ponds the DIN was ( 0. 093 ± 0. 076) ~ ( 1. 736 ± 1. 134) mg· L^–1 ,DIP ( 0. 062 ± 0. 271) ~ ( 0. 380 ± 0. 276) mg·L^–1 ,COD ( 0. 940 ± 0. 934) ~ ( 9. 653 ± 1. 317) mg·L^–1 and the E ( 1. 198 ± 4. 250) ~ ( 1 267. 537 ± 68. 534) . The water eutrophication gradually increased as the shrimp culture went on,and all the indexes reached their peak values at the 20th day,and then the values gradually decreased but gradually enhanced at the late cultural stage when the E was maximum. At the late cultural stage the water eutrophication gradually increased horizontally towards the sewage outfall and the E was in the range of ( 343. 230 ± 1. 659) ~ ( 2 786. 072 ± 55. 241) ; the eutrophication gradually increased vertically near the bottom,and the E ranged from ( 2 046. 687 ± 5. 568) to ( 2 789. 524 ± 7. 166) .
Keywords:intensive shrimp ponds  eutrophication  DIN  DIP  COD  nutritional status composite index
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