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| 2014年黄骅港海域浮游动物群落结构季节变化及其影响因素研究 |
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刘栋1,2, 李永明3, 陈胜林3, 陈丙见4, 吕振波1, 王以斌5, 张晶晶1, 李敏1, 任中华1
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1.鲁东大学滨海生态高等研究院, 鲁东大学, 山东 烟台 264003;2.上海海洋大学 海洋科学学院, 上海 201306;3.滨州市海洋发展研究院, 山东 滨州 256600;4.山东省海洋资源与环境研究院, 山东 烟台 264006;5.自然资源部第一海洋研究所, 山东 青岛 266061
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| 摘要: |
| 为了解黄骅港海域浮游动物群落结构的季节变化特征及其与环境因子的相关关系,分别于2014年2月(冬季)、5月(春季)、8月(夏季)和11月(秋季)对该海域进行4个航次的浮游动物和环境因子调查,采用优势度指数、物种多样性和聚类分析等方法分析该海域浮游动物的群落结构特征及其季节变化,采用冗余分析探究引起浮游动物群落结构变动的环境因子。结果显示:4个航次共鉴定出浮游动物10类64种,而春、夏、秋、冬各季节分别鉴定出8类41种、7类35种、8类23种和5类12种,均以刺胞动物和桡足类为主。同时,浮游动物群落结构四季演替明显,如秋季优势种仅为夜光虫(Noctiluca),其他季节均为多种浮游动物共存;4个季节浮游动物物种多样性总体呈夏>春>冬>秋的趋势,与各季节的优势种数量变化趋势略有不同;聚类分析显示,浮游动物群落结构在35%相似度水平上可划分为冬、春、夏和秋4组,季节差异显著。通过冗余分析探讨引起浮游动物群落结构演替的环境因子,结果显示,不同浮游动物对温度、盐度和营养盐等环境因子的响应各异,这也是造成群落季节变动的主要原因,冬季浮游动物群落的主要影响因素是溶解氧和磷酸盐,春季则是氮磷营养盐,夏、秋季为温盐和氮磷营养盐。 |
| 关键词: 黄骅港 浮游动物 群落结构特征 环境因子 季节变化 |
| DOI：10.11759/hykx20210506004 |
| 分类号:S932.2 |
| 基金项目:国家重点研发计划项目"海洋牧场与海上风电融合发展技术示范"(2019YFD0902104) |
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| Seasonal variation of zooplankton community structure and its influencing factors in waters adjacent to the Huanghua port, Bohai in 2014 |
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LIU Dong1,2, LI Yong-ming3, CHEN Sheng-lin3, CHEN Bing-jian4, Lü Zhen-bo1, WANG Yi-bin5, ZHANG Jing-jing1, LI Min1, REN Zhong-hua1
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1.Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, China;2.Shanghai Ocean University, Institute of Marine Science, Shanghai 201306, China;3.Binzhou Ocean Development Research Institute, Binzhou 256600, China;4.Shandong Marine Resources and Environment Research Institute, Shandong Provincial Key Laboratory of Marine Ecological Restoration, Yantai 264006, China;5.The First Institute of Oceanography, MNR, Qingdao 266061, China
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| Abstract: |
| The study focused on understanding the temporal and spatial variation characteristics of zooplankton community structure and its relationship with environmental factors in waters adjacent to the Huanghua port.In 2014,four surveys were conducted;15 stations in February (winter),May (spring),August (summer),and 12 stations in November (autumn).The characteristics of the zooplankton community structure and its seasonal changes were analyzed using the dominant index (Y),species diversity,and cluster analysis.In contrast,the environmental factors were analyzed using redundancy analysis (RDA),which caused the changes in the zooplankton community structure.The results indicated a total of 10 categories and 64 identified species of zooplankton:8 categories and 41 species in spring,7 categories and 35 species in summer,8 categories and 23 species in autumn,and 5 categories and 12 species in winter.Additionally,the dominant groups among these species were Cnidaria and Copepoda.Meanwhile,the zooplankton community presented a seasonal succession phenomenon,including the only dominant species of Noctiluca in autumn,but several zooplankton species coexisting in the other three seasons.The species diversity indexes of zooplankton in four seasons indicated a trend of summer>spring>autumn>winter,slightly different from the number of dominant species in each season.Cluster analysis showed that the zooplankton community structure could be significantly divided into four groups,closely related to the seasonal division,at a 35% similarity level.The RDA analysis results showed that different species responded differently to environmental factors,including temperature,salinity,and nutrients,which were the primary factors causing the seasonal changes of the zooplankton community.Furthermore,the dissolved oxygen and phosphate in winter,nitrogen and phosphorus in spring,temperature,salinity,nitrogen,and phosphorus in summer and autumn also influenced the zooplankton community in certain seasons. |
| Key words: Huanghua port zooplankton community structure characteristics environmental factors seasonal variation |
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