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Volume 34 Issue 2
Mar.  2015
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Citation:

Purification of Eucheuma gelatinae on nitrogen and phosphorus and effect on the level of chlorophyll a in eutrophic seawater

  • Received Date: 2014-02-08
    Accepted Date: 2014-07-16
  • The ability of Eucheuma gelatinae purifies nitrogen and phosphorus and the control of microalgae biomass in eutrophic seawater was studied. The results showed that DIN and PO4-P can be eliminated efficiently by E.gelatinae in eutrophic seawater. The elimination effect of DIN and PO4-P was obvious after 72 h and 24 h respectively. Compare with the uptake of nitrate nitrogen and nitrite nitrogen, E.gelatinae preferentially absorbs ammonia nitrogen. The content of chlorophyll a in seawater can be control by E.gelatinae. The level of chlorophyll a achieved to the lowest value after 144 h and didn't rise back when the density of E.gelatinae was up 4 kg/m3. Therefore, E.gelatinae is one of the most ideal macroalgae in tropical sea to seawater purification and red tide control.
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  • [1] 黄通谋, 李春强, 于晓玲, 等.麒麟菜与贝类混养体系净化富营养化海水的研究[J].中国农学通报, 2010, 26(18):419-424.[2]方 哲, 鲍时翔.琼枝麒麟菜的生物学特性与养殖试验[J].水利渔业, 2008, 28(2):55-56.[3]彭 明, 李春强.三亚红沙港赤潮及生物防控研究[M].北京:中国农业出版社, 2009:109-113.[4]方 哲, 黄惠琴, 鲍时翔, 等.异枝麒麟菜对海水中氮、磷吸收的初步研究[J].水产养殖, 2008(6):1-3.[6] GB 17378.4-2007, 海洋监测规范 第4部分:海水分析[S].[7]徐姗楠, 李 祯, 何培民.大型海藻在近海水域中的生态修复作用及其发展策略[J].渔业现代化, 2006(6):12-14.[8]张善东, 俞志明, 宋秀贤, 等.大型海藻龙须菜与东海原甲藻间的营养竞争[J].生态学报, 2005, 25(10):2676-2680.[9]赵先庭, 刘云凌, 张继辉, 等.龙须菜处理海水养殖废水的初步研究[J].海洋水产研究, 2007, 28(2):23-27.
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Purification of Eucheuma gelatinae on nitrogen and phosphorus and effect on the level of chlorophyll a in eutrophic seawater

  • 1. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Haikou 571101, China

Abstract: The ability of Eucheuma gelatinae purifies nitrogen and phosphorus and the control of microalgae biomass in eutrophic seawater was studied. The results showed that DIN and PO4-P can be eliminated efficiently by E.gelatinae in eutrophic seawater. The elimination effect of DIN and PO4-P was obvious after 72 h and 24 h respectively. Compare with the uptake of nitrate nitrogen and nitrite nitrogen, E.gelatinae preferentially absorbs ammonia nitrogen. The content of chlorophyll a in seawater can be control by E.gelatinae. The level of chlorophyll a achieved to the lowest value after 144 h and didn't rise back when the density of E.gelatinae was up 4 kg/m3. Therefore, E.gelatinae is one of the most ideal macroalgae in tropical sea to seawater purification and red tide control.

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