Small temporal variation in abundance of virioplankton compared to bacterioplankton and phytoplankton in two bays in the northern South China Sea  

作　　者：Jiandong ZHANG Yineng LI Lijuan LONG Sijun HUANG 

机构地区：[1]CAS Key Laboratory of Tropical Marine Bio-resources and Ecology,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China [2]Marine Environmental Engineering Center,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China [3]State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China [4]Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China [5]Guangdong Provincial Observation and Research Station for Coastal Upwelling Ecosystem,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Shantou 515041,China

出　　处：《Journal of Oceanology and Limnology》2024年第4期1130-1142,共13页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China(Nos.42176116,41576126,41890851,U21A6001);the Natural Science Foundation of Guangdong Province(No.2017A030306020);the Guangdong Major Project of Basic and Applied Basic Research(No.2019B030302004);the Rising Star Foundation of the South China Sea Institute of Oceanology(No.NHXX2019ST0101);the Youth Innovation Promotion Association of the Chinese Academy of Sciences(No.2018377);the Science and Technology Planning Project of Guangdong Province of China(No.2021B1212050023);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA19060503)。

摘　　要：Variations of picoplankton groups were investigated over a one-month period in Daya Bay and Sanya Bay,in the northern South China Sea.The two coastal regions exhibited different variation patterns in physicochemical parameters.Moreover,the diel variations of picoplankton groups were different between the two bays.The abundance of the picoplankton in Sanya Bay displayed a pronounced diel variation,while it was not significant in Daya Bay.In addition,some similar patterns of picoplankton abundance were discovered.In the two bays,virioplankton exhibited the smallest fluctuation range,whereas picocyanobacteria fluctuated most markedly.The fluctuation range of picoplankton groups was larger in spring tide than in neap tide,especially in Sanya Bay.Random forest model analysis demonstrated that the variation of picoplankton groups was attributed to physical and chemical factors in Sanya Bay and Daya Bay,respectively.Therefore,our findings suggest that virioplankton abundance can persist more stably in response to changing environmental conditions compared to bacterioplankton and picophytoplankton.

关 键 词：diel variation ABUNDANCE picoplankton group VIRIOPLANKTON PICOCYANOBACTERIA 

分 类 号：Q178[生物学—水生生物学]