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于2010年7~11月对胶州湾夏、秋季浮游动物种类和丰度进行现场调查,并分析讨论了胶州湾夏、秋季浮游动物丰度的水平分布与环境因子(温度、盐度、水深、叶绿素a)和二甲基硫(DMS)、溶解态β-二甲基巯基丙酸内盐(DMSPd)、颗粒态β-二甲基巯基丙酸内盐(DMSPp)的相关性。结果表明,胶州湾浮游动物丰度分布不均匀,8月湾内西部沿岸海域C1站位出现调查期间的动物丰度最大值(656.1ind/m3),最小值(1.492ind/m3)出现在10月胶州湾东北部的A2站位。浮游动物丰度具有明显的季节变化,秋季浮游动物丰度低于夏季浮游动物丰度。浮游动物丰度与盐度、叶绿素a含量、细菌生物量的相关性不明显,2010年10月浮游动物丰度与DMS呈显著正相关(P<0.05),11月的浮游动物丰度与DMSPp呈显著正相关(P<0.05),其它月份(7、8、9月)的浮游动物丰度与DMS、DMSPd、DMSPp浓度的相关性均不明显。由于浮游动物摄食活动对DMS释放的影响受多种因素的制约,因此浮游动物与DMS的相互作用需要进一步研究。
Abstract：Species composition and abundance of zooplankton were studied based on the zooplanktoninsitusamples collected in the Jiaozhou Bay from July to November,2010.The horizontal distribution and seasonal variation of zooplankton,and the relationships between them and the environmental factors such as water depth,temperature,salinity and Chl-aconcentrations,as well as the concentrations of dimethysulfide(DMS),dissolved dimethylsulfoniopropionate(DMSPd),particulate dimethylsulfoniopropionate(DMSPp)were analyzed.The results indicated that the zooplankton abundance in the Jiaozhou Bay was unevenly distributed.The highest zooplankton abundance of 656ind/m3 was observed at Station C1in August,while the lowest abundance of 1.492ind/m3 was found at Station A2in October.The zooplankton abundance of autumn was lower than that of summer,due to seasonal variation in environmental conditions.The relationships between zooplankton abundance and environmental factors(water depth,temperature,salinity and Chl-a)were not significant.For DMS,DMSPd,DMSPp,there were significant positive correlations between zooplankton abundance and DMS in October,and between zooplankton abundance and DMSPp in November,respectively.In other months(July,August,September),the correlations were not significant.The results suggested that the influence of zooplankton grazing on the release of DMS from the water column was affected by complex environmental factors and further research was needed to investigate the relationship between zooplankton and DMS/DMSP.
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基本信息:
DOI：10.16441/j.cnki.hdxb.2014.02.010
中图分类号:Q958.8
引用信息:
[1]董园,于娟,杨桂朋.2010年夏、秋季胶州湾浮游动物对表层海水中DMS分布的影响[J],2014,44(02):68-77.DOI:10.16441/j.cnki.hdxb.2014.02.010.
基金信息:
国家自然科学基金重点项目(41030858);; 教育部“长江学者”奖励计划项目;; 山东省“泰山学者”建设工程专项;; 山东省自然科学基金项目(ZR2011DQ005)资助