投放双齿围沙蚕和马尾藻对养殖底泥上覆水氮、磷含量的影响

doi:10.11978/j.issn.1009-5470.2012.04.018

热带海洋学报 ›› 2012, Vol. 31 ›› Issue (4): 129-134.doi: 10.11978/j.issn.1009-5470.2012.04.018cstr: 32234.14.j.issn.1009-5470.2012.04.018

投放双齿围沙蚕和马尾藻对养殖底泥上覆水氮、磷含量的影响

江小桃¹,², 谭烨辉¹, 柯志新¹, 黄良民¹

1. 中国科学院南海海洋研究所海洋生物资源可持续利用重点实验室, 广东广州, 510301;
2. 中国科学院研究生院, 北京, 100049

收稿日期:2011-03-18 修回日期:2011-05-26 出版日期:2012-10-22 发布日期:2012-10-24
作者简介:江小桃(1985—), 女, 广东省广州市人, 硕士研究生, 主要从事海洋生物与生态研究。E-mail: cherryjiang2005@163.com
基金资助:
广东省科技计划项目(2009B030600004); 广东省海洋渔业科技推广专项(A200899J01); 广东“908”评价项目(GD908-02-06)

Effects of introduction of Perinereis aibuhitensis and Sargassum hemiphyllum on nitrogen and phosphorus in overlying water

JIANG Xiao-tao¹,², TAN Ye-hui¹, KE Zhi-xin¹, HUANG Liang-min¹

1. Key Laboratory of Marine Bio-resources Sustainable Utilization (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2011-03-18 Revised:2011-05-26 Online:2012-10-22 Published:2012-10-24

摘要/Abstract

摘要：

采用实验生态学的方法探讨由双齿围沙蚕和马尾藻组成的立体修复系统对养殖底泥上覆水氮、磷含量的影响。处理组1、2分别在系统(底泥1.5kg、海水6L和马尾藻10g)中投放4条和6条沙蚕。结果表明, 与对照组相比, 处理组中上覆水氮、磷含量有不同程度的变化。实验第1周上覆水的磷酸盐含量没有显著变化, 无机氮含量明显增大, 而且沙蚕密度越高, 上覆水中氨氮和硝态氮浓度越高。2个月后, 上覆水氨氮浓度大幅下降, 而硝态氮和磷酸盐浓度大幅上升; 同时, 上层马尾藻吸收营养盐而增重, 3组藻体湿重分别增重37%、58%和101%。依据实验结果认为, 投放6条沙蚕组合10g马尾藻形成的立体修复系统, 对底泥环境改善和养殖效益提升效果较好。

关键词: 多毛类, 大型海藻, 底泥, 生物扰动, 营养盐, 生物修复

Abstract:

This study discussed the effects on nitrogen and phosphorus in overlying water due to the introduction of Perinereis aibuhitensis and Sargassum hemiphyllum. Four and six individuals of Perinereis aibuhitensis were put into the recovery system (1.5 kg bottom mud, 6 L sea water and 10 g Sargassum hemiphyllum) as treatment groups 1 and 2, respectively. The results indicated that nitrogen and phosphorus in overlying water changed significantly after the treatment. After the first week of culturing, phosphate did not change obviously, but ammonification and nitrification were strengthened. Two months later, NH4+-N was reduced significantly, while nitrogen and phosphate increased compared with the control. Sargassum helped the uptake of nutrients in the overlying water, the wet weight of which increased 37%, 58% and 101% in group 1, group 2 and control, respectively. These results showed that the recovery system of six Perinereis aibuhitensis and 10 g Sargassum hemiphyllum could effectively improve the sediment environment.

Key words: polychaete worm, seaweed, sediment, bioturbation, nutrient, bioremediation

中图分类号:

X171

江小桃, 谭烨辉, 柯志新, 黄良民. 投放双齿围沙蚕和马尾藻对养殖底泥上覆水氮、磷含量的影响[J]. 热带海洋学报, 2012, 31(4): 129-134.

JIANG Xiao-tao, TAN Ye-hui, KE Zhi-xin, HUANG Liang-min. Effects of introduction of Perinereis aibuhitensis and Sargassum hemiphyllum on nitrogen and phosphorus in overlying water[J]. Journal of Tropical Oceanography, 2012, 31(4): 129-134.

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投放双齿围沙蚕和马尾藻对养殖底泥上覆水氮、磷含量的影响

Effects of introduction of Perinereis aibuhitensis and Sargassum hemiphyllum on nitrogen and phosphorus in overlying water

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