摘要
为研究浙北海域大中型浮游动物群落的生态特征及其主要影响因子,于2018年春(5月)、夏季(8月)对浙江北部近海海域大中型浮游动物进行了调查(采用浅水Ⅰ型浮游生物网),并监测了相关环境因子。结果显示,8月份浮游动物丰度均值略高于5月份,和生物量均值的季节变化趋势一致,8月份调查海域浮游动物多样性指数(H′)明显高于西侧杭州湾海域。综合来看,环境因子对浮游动物群落的生态特征产生了一定的影响。在上升流强盛的8月份,浮游动物丰度与DO呈现正相关;Spearman相关性分析表明,低DO降低了浮游动物丰度,然而DO对生物量和多样性指数(H′)均无显著影响。pH在5月份与浮游动物丰度及生物量呈负相关,而8月份趋势相反。
To document the ecological characteristics and main influencing factors of macro-and mesozooplankton community in the north coastal areas of Zhejiang Province,the large and medium-sized zooplankton were investigated in spring(May)and summer(August),2018(collected by shallow water type I and type II plankton networks),and the relevant environmental factors were monitored.The results showed that the average zooplankton abundance in August is slightly higher than that in May,which is consistent with the seasonal variation trend of the average biomass.The zooplankton diversity index in the east of the investigated sea area in August was significantly higher than that in Hangzhou Bay.Overall,environmental factors had a certain impact on the ecological characteristics of zooplankton community.In August,when upwelling was strong,zooplankton abundance was positively correlated with dissolved oxygen(DO)although DO did not reach the hypoxia threshold.The Spearman correlation analysis showed that low DO had a certain impact on zooplankton community and reduced zooplankton abundance.However,DO had no significant effect on biomass and diversity index(H').The pH was negatively correlated with zooplankton abundance and biomass in May,but positively in August.
作者
边佳胤
王平波
沈丹迪
柳涛
程方平
BIAN Jiayin;WANG Pingbo;SHEN Dandi;LIU Tao;CHENG Fangping(Zhoushan Marine Workstation of East China Sea Branch of SOA,Zhoushan 316022,China;Key Laboratory of Marine Ecosystem Dynamics,Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China;Daishan Bureau of Natural Resources and Planning,Zhoushan 316200,China;Ningbo Marine Environmental Monitoring Center of East China Sea Branch of SOA,Ningbo 315012,China;Observation and Research Station of Marine Ecosystem in Yangtze River Delta,Ministry of Natural Resources,Zhoushan 316022,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2023年第5期152-162,共11页
Transactions of Oceanology and Limnology
基金
自然资源部东海局青年科技基金(201807)。
关键词
浮游动物
浙北海域
上升流
DO
zooplankton
north coastal areas of Zhejiang province
upwelling
DO
