| 摘要: |
| ; 本研究基于2014-2018年每年8月份,于秦皇岛海域使用浅水Ⅰ型浮游生物网采集的浮游动物样品数据,分析了小型水母群落的组成种类和丰度分布特征,及环境因子与水母群落特征之间的关系。结果如下：2014-2018年调查海域共出现小型水母14种,其中2014、2015和2017年夏季水母种类数均为7种,2016年夏季水母种类数为6种,2018年夏季水母种类数最少,仅为2种。2016年夏季秦皇岛水域水母丰度的平均值最高,达到了95.01 ind/m3。2014、2015和2018年分别为66.89 ind/m3、69.05 ind/m3和35.36 ind/m3。2017年最低,为14.86 ind/m3。通过小型水母丰度与环境因子之间的相关性分析,结果显示：温度、盐度、pH、磷酸盐、溶解氧、无机氮、悬浮物等环境因子会对秦皇岛夏季水域水母群落结构的年际间变化产生显著影响。 |
| 关键词: 秦皇岛 小型水母 群落特征 环境因子 |
| DOI： |
| 分类号: |
| 基金项目:国家重点研发计划项目(2019YFC1407903)[Foundation: Supported by the National Key Research and DevelopmentProgram of China, No.2019YFC1407903] |
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| The distribution characteristics of small medusae in the Qinhuangdao coastal water |
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XuDonghui, Qi Yanping, Zhang Xuanzhao, Du Xiaoyuan, Han Longjiang, Liu Xiao, Zhou Hui, Pan Yulong
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North China Sea Environmental Monitoring Center
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| Abstract: |
| In this study, we analyzed the composition, abundance, and distribution characteristics of small medusae based on samples collected in the Qinhuangdao coastal water during the summers of 2014-2018. The medusae abundance and its influencing factors were explored with multivariate analysis according to the sampling date and environmental parameters. A total of 14 species of small medusae were identified in this survey. The species number of small medusae during the summers of 2014-2018 were 7, 7, 6, 7 and 2, respectively. In 2014, the average abundance was 66.89 ind /m3. In 2015, the average abundance was 69.05 ind /m3. In 2016, the average abundance was 95.01 ind /m3. In 2017, the average abundance was 14.86 ind /m3. In 2018, the average abundance was 35.36 ind /m3. The abundance of small medusae showed distinct heterogeneity in the Qinhuangdao coastal water. There was a interannual variation in the primary environmental factors that affected the distribution of small medusae. In 2014, they were salinity, DO, pH and phosphate. In 2015, they were DO and inorganic nitrogen. In 2016, they were salinity, suspended solids, temperature and phosphate. In 2017, they were temperature and inorganic nitrogen. In 2018, they were temperature and suspended solids. This research provided the fundamental information on the long-term observation of small medusae ecology in the Qinhuangdao coastal water. |
| Key words: Qinhuangdao coastal water small medusae community structure environmental factors |