网箱养殖海域环境质量评价研究【毕业论文】

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1、本科毕业论文目录本科毕业论文（20届）网箱养殖海域环境质量评价研究专业：环境科学本科毕业论文目录目录摘要................................................................Ⅰ英文摘要............................................................Ⅱ引言.................................................................11

2、实验准备及实验过程..................................................31.1样品采集.........................................................31.2测定项目..........................................................31.3测定方法及依据..................................................

3、...31.4实验过程...........................................................31.4.1溶解氧DO.........................................................31.4.2PH值...........................................................61.4.3亚硝酸盐测定.................................

4、....................81.4.4硝酸盐测定.......................................................81.4.5氨氮测定.........................................................91.4.6活性磷酸盐......................................................102实验结果与分析.......................

5、..............................112.1各站点的溶解氧浓度和PH值...........................112.2海水中营养盐NO2-N的含量状况及分析...........................122.3硝酸盐（NO3-N）的含量状况及分析.............................142.4活性磷酸盐（PO4-P）的含量状况及分析.........................162.5长峙岛养殖海区各水质指标含量....

6、.................................173结论与讨论........................................................173.1长峙岛水质结果之分析讨论.........................................173.2网箱养殖对水环境影响............................................173.2.1碳含量的变化........................

7、......................173.2.2水体中BOD的影响.............................................173.2.3营养盐变化...........................................183.2.4网箱养殖对沉积物的影响..........................................193.2.5底泥污染..........................................

8、......203.2.6对浮游生物的影响................................................203.2.7化学物品污染................................................203.2.8未食饵料与排泄物污染..........................................203.2.9对生态系统的影响.......................................