| 海马齿对海水养殖系统中氮、磷的移除效果研究 |
| Research on Effects of Nutrient and Phosphate Removal from Marine Aquaculture System by Sesuvium portulacastrum |
| 投稿时间：2011-06-14 修订日期：2011-06-14 |
| DOI： |
| 中文关键词:海马齿 海水养殖 氮、磷移除 |
| 英文关键词:Sesuvium portulacastrum marine aquaculture nutrient and phosphate removal |
| 基金项目: 广东省科技计划项目(2010330004202995);广东省自然科学基金博士启动项目(2010330004203984)联合资助 |
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| 中文摘要: |
| 大量的外源性饵料和排泄物使海水养殖水体N、P以及有机物大量增加,导致水质恶化,是制约海水养殖业发展的主要因素。通过构建海马齿面积比为3∶2盐度为15的A、B 2组浮床海水养殖系统,以检验海马齿的N、P移除能力。结果显示,当海马齿处于生长启动期,A组和B组的水质指标与对照组之间无显著性差异(P>0.05);但当海马齿生长进入稳定期后,A组和B组的氨氮去除率为74%～91%和60%～91%,亚硝态氮去除率为93%～98%和71%～97%,总氮去除率为11%～25%和14%～33%,COD去除率为67%～85%和61%～81%,总磷去除率为41%～68%和35%～71%,试验组氨氮、亚硝态氮、COD和总磷浓度与对照组之间都存在显著性差异(P<0.05)。2组不同密度的海马齿浮床系统都显示了较高的N、P去除能力,表明海马齿在盐度5时能有效地吸收N、P,降低COD,减少有机物污染,改善养殖环境。 |
| 英文摘要: |
| Lots of exogenous feed and fish excreta make the nutrient，phosphate and organic increase，cause water quality deterioration. This is a main restricted factor to the development of marine aquaculture. Group A and group B floating marine aquaculture systems were constructed which area ratio of plants was 3: 2. The study was conducted to examine the N，P removal ability of Sesuvium portulacastrum. After two months of treatment，Sesuvium portulacastrum grew well at salinity 15，group A and B showed efficient N，P removal ability，but there was no significant difference(P>0.05)between them. When the plants grew stable，the results showed that group A and B had excellent removals，with efficiencies 74%-91%and 60%-91% for ammonia nitrogen，93%-98% and 71%-97 % for nitrite nitrogen，11%-25 % and 14%-33% for total nitrogen，67%-85 % and 61%-81%for COD and 41%-68% and 35%-71% for total phosphorus. The group A and B have significant difference(P
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| 窦碧霞,黄建荣,李连春,曲焕韬,周勤勇,黎祖福.2011.海马齿对海水养殖系统中氮、磷的移除效果研究[J].水生态学杂志,32(5):94-99. |
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