中国海洋大学学报（自然科学版）2026，Vol.56Issue(2)：71-83,13.DOI:10.16441/j.cnki.hdxb.20240364
胶州湾小型底栖动物时空分布及其环境影响因素
Spatial and Temporal Distribution of Meiofauna and the Influencing Environmental Factors in Jiaozhou Bay
摘要
Abstract
In order to study the spatial and temporal distribution patterns of meiofauna in Jiaozhou Bay and its influencing environmental factors,two field samplings were carried out in the waters inside and outside Jiaozhou Bay in January and April 2021.The taxon composition,abundance,biomass,commu-nity structure,horizontal and vertical distribution of meiofauna,and their relationship with the environ-mental factors were investigated.The results showed that 12 taxa of meiofauna were identified in the study area.The average abundance of meiofauna in winter and spring was(769.6±184.8)and(683.3±173.3)ind./10 cm2,respectively.The average biomass of meiofauna in winter and spring was(587.0±78.0)and(426.7±67.4)μg/10 cm2,respectively.Free-living marine nematode was the most dominant taxon,accounting for 87.60%and 92.36%of the total abundance of meiofauna,in winter and spring,respectively.Other important taxa included copepods,rotifers and nauplius.There were significant differences in seasonal distribution of meiofauna community structure.Results of BioEnv analysis showed that the best combination of environmental factors explaining the variation of meiofaunal com-munity structure was water depth,bottom water temperature,sediment water content and median grain size.In terms of horizontal distribution,there were no significant differences in the community struc-ture of meiofauna community inside and outside of Jiaozhou Bay between the two seasons,but the low-est abundance values in each season appeared in the mouth of the bay,which might be related to the sed-iment median grain size and bottom water temperature.The average abundance of meiofauna in the study area was lower than other areas,which was caused by the offshore human activities.The high values of N/C ratio indicated that there was organic pollution in the study area,which may be due to the bivalve bottom aquaculture in Jiaozhou Bay,resulting in the accumulation of organic matter in sediment environment.关键词
小型底栖动物/丰度/生物量/空间分布/季节变化/环境因子/胶州湾Key words
meiofauna/abundance/biomass/spatial distribution/seasonal variation/environmental factors/Jiaozhou Bay分类
生物科学引用本文复制引用
鲍俊杰,何园园,刘晓收..胶州湾小型底栖动物时空分布及其环境影响因素[J].中国海洋大学学报（自然科学版）,2026,56(2):71-83,13.基金项目
国家自然科学基金项目(41976131)资助Supported by the National Natural Science Foundation of China(41976131) （41976131）
