| 福建罗源湾网箱养殖区海洋生态环境质量评价 |
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| 引用本文： | 蔡清海,杜琦,钱小明,许翠娅.福建罗源湾网箱养殖区海洋生态环境质量评价[J].海洋科学进展,2007,25(1):101-110. |
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| 作者姓名： | 蔡清海 杜琦 钱小明 许翠娅 |
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| 作者单位： | 福建省水产研究所,福建,厦门,361012 |
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| 基金项目： | 福建省海洋与渔业局科研项目 |
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| 摘 要： | 对比2004年的调查资料与历史资料,分析了罗源湾海区多年水质、水域的养殖力(营养盐、叶绿素a和初级生产力)以及浮游植物多样性的变化,并采用潜在生态危害指数法对其生态危害程度现状进行评价。结果表明,罗源湾水体中的无机氮和活性磷酸盐质量浓度超过第二类水质标准,沉积物中除Hg、Cd污染较为严重外,其它重金属的生态危害很小。此外,罗源湾表层沉积物微量元素含量属正常范围。目前,罗源湾网箱养鱼已超负荷,但养殖面积还有扩大趋势,故必须调整网箱养殖面积和数量,优化养殖种类结构,实现生态养殖,才能达到持续健康、高质、高效发展。
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| 关 键 词： | 网箱养殖 质量状况 生态危害 罗源湾 重金属 微量元素 |
| 文章编号： | 1671-6647(2007)01-0101-10 |
| 修稿时间： | 2006-01-19 |
Quality Assessment of Marine Ecological Environment of Cage Culture Area in the Luoyuan Bay,Fujian Province |
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| CAI Qing-hai,DU Qi,QIAN Xiao-ming,XU Cui-ya.Quality Assessment of Marine Ecological Environment of Cage Culture Area in the Luoyuan Bay,Fujian Province[J].Advances in Marine Science,2007,25(1):101-110. |
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| Authors: | CAI Qing-hai DU Qi QIAN Xiao-ming XU Cui-ya |
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| Institution: | Fisheries Research Institute of Fujian, Xiamen 361012, China |
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| Abstract: | In this paper,the multi-year variations in water quality,culture capacity(nutrinet,chlorophylla and primary productivity) and phytoplankton diversity in the Luoyuan Bay are analyzed by comparing the data observed in 2004 with the historical data,and the ecological harm conditions in the sea area are evaluated by using the potential ecological harm index method.It is shown from the analysis results that the concentrations of inogranic nitrogen and active phosphate in seawater of the Luoyuan Bay exceeded the seawater quality standards of the second category,the ecological harms of heavy metals in sediments from the sea area were slight except that the pollution of Hg and Cd in sediments was serious,and the contents of microelements in the surface sediments from the Luoyuan Bay were in normal range.The cage culture in the Luoyuan Bay has exceeded its environmental carrying capacity,and the cultured area has an expanding trend,so it is necessary to regulate the cage culture area and quantity,improve the structure of culture species and carry out the ecological culture so as to achieve the sustainable development of cage culture. |
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| Keywords: | cage calture quality condition ecological harm Luoyuan Bay heavy metal microelement |
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