蓬莱、威海沙滩小型底栖动物群落特征及影响因素  

Meiofaunal community features and their influencing factors at beaches of Penglai and Weihai

作　　者：杨丽莉 李亚男 阮振 衡星宇 慕芳红[1] YANG Lili;Li Yanan;RUAN Zhen;HENG Xingyu;MU Fanghong(College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China)

机构地区：[1]中国海洋大学海洋生命学院,山东青岛266003

出　　处：《海洋湖沼通报》2023年第2期116-122,共7页Transactions of Oceanology and Limnology

基　　金：国家自然科学基金项目(41576153,41976100)。

摘　　要：于2016年10月对蓬莱海水浴场、2018年7月对威海那香海沙滩进行了小型底栖动物的采样调查。蓬莱海水浴场小型底栖动物平均丰度为632.83±719.34 ind·10cm^(-2),平均生物量为726.09±707.08μg dwt·10cm^(-2),鉴定出12个小型底栖动物类群;威海那香海沙滩小型底栖动物平均丰度为3461.96±2121.20 ind·10cm^(-2),平均生物量为7617.35±5804.83μg dwt·10cm^(-2),鉴定出10个小型底栖动物类群。两个沙滩的小型底栖动物的丰度、生物量都具有显著的潮区差异。蓬莱海水浴场小型底栖动物丰度在潮区间的变化规律表现为低潮带>中潮带>高潮带,生物量表现为中潮带>低潮带>高潮带;威海那香海沙滩小型底栖动物丰度和生物量在潮区间变化规律均表现为中潮带>低潮带>高潮带。Pearson分析表明蓬莱海水浴场小型底栖动物及主要类群的丰度与各环境因子都无显著相关性,威海那香海沙滩小型底栖动物丰度与沉积物粒度参数显著相关。BIOENV分析表明,温度、pH值、溶氧量、中值粒径、偏态系数的组合能最好地解释蓬莱海水浴场小型底栖动物群落结构,pH值、总有机碳含量、偏态系数的组合能最好地解释威海那香海沙滩小型底栖动物群落结构。An investigation was conducted on meiofauna at Penglai swimming beach in Oct.,2016,and at Weihai Naxiang Beach in July,2018.At Penglai swimming beach,the average abundance was 632.83±719.34 ind.10cm^(2),and the average biomass was 726.09±707.08μg dwt·10cm^(2).A total of 12 meiofauna groups were identified there.At Weihai Naxiang beach,the average abundance was 3461.96±2121.20 ind.10cm^(2),and the average biomass was 7617.35±5804.83μg dwt·10cmm^(2).A total of 10 meiofauna groups were identified at this beach.There were significant differences of meiofauna abundance and mieofauna biomass among different tidal zones of the two beaches.At Penglai swimming beach,the meiofauna abundance increased from low tidal zone to middle tidal zone and then to high tidal zone,and the meiofauna biomass increased from middle tidal zone to low tidal zone and then to high tidal zone.At Weihai Naxiang beach,the meiofauna abundance and biomass increased from middle tidal zone to low tidal zone and then to high tidal zone.Pearson correlation analysis showed that there is no significant correlation between meiofauna abundance and environmental factors at the Penglai swimming beach,and the abundance of meiofauna at Weihai Naxiang beach is closely related to the grain size characteristics.BIOENV analysis showed that the combination of temperature,pH,dissolved oxygen,median grain size and coefficient of skew best explains the meiofauna community structure at Penglai swimming beach,and the combination of pH,the organic matter content and coefficient of skew best explains the meiofauna community structure at Weihai Naxiang beach.

关 键 词：小型底栖动物 沙滩 蓬莱 威海 

分 类 号：Q145[生物学—生态学] Q178[生物学—普通生物学] Q958