Net-phytoplankton communities and influencing factors in the Antarctic Peninsula region in the late austral summer 2019/2020
文献类型: 外文期刊
第一作者: Liu, Lu
作者: Liu, Lu;Zhang, Jichang;Zhao, Yunxia;Luan, Qingshan;Zhao, Xianyong;Wang, Xinliang;Zhang, Jichang;Zhao, Xianyong;Wang, Xinliang
作者机构:
关键词: phytoplankton; community structure; sea surface temperature; sea ice concentration; Antarctic krill
期刊名称:FRONTIERS IN MARINE SCIENCE ( 影响因子:3.7; 五年影响因子:4.7 )
ISSN:
年卷期: 2023 年 10 卷
页码:
收录情况: SCI
摘要: The waters near the Antarctic Peninsula are characterized with unique oceanographic conditions and rich krill resources. Based on samples collected around the South Shetland Islands (SSI) in austral summer of 2019/2020, the net- phytoplankton community structure and relevant major biotic and abiotic influencing factors were investigated. Eighty-one taxa were identified by light microscope, and diatoms were the most abundant group. The most abundant species were Chaetoceros atlanticus, C. criophilus, C. dichaeta, Fragilariopsis kerguelensis and Pseudo-nitzschia lineola. The abundance and Shannon-Weaver index of net-phytoplankton ranged from 100 to 2.64x107 cells/m3 and 0.0747 to 4.0176 respectively, with significantly low values detected in the Bransfield Strait (BS) and high values in the west of the SSI. The dissimilarity was mainly caused by the differences in abundance of diatoms (including Thalassiothrix antarctica and the species in genus Rhizosolenia, Chaetoceros, Fragilariophsis). These diatoms and Dictyocha speculum were found in higher abundance in the west of the SSI, while Corethron pennatum and cryptophytes were found in higher abundance in the BS. Combined with acoustic density of krill and environmental data (Sea Surface Temperature and Sea Ice Concentration). The multivariate analysis suggested that phytoplankton community was positively affected by the SST, and the acoustic- derived krill density would be associated with the spatial distribution of pennate diatoms. This study enhances the knowledge about the selective feeding for krill and provides ecological implications for the Antarctic marine ecosystem.
分类号:
- 相关文献
作者其他论文 更多>>
-
Inhibitory effect and possible mechanism of oregano and clove essential oils against Pectobacterium carotovorum subsp. carotovorum as onion soft rot in storage
作者:Zhang, Jinfeng;Tian, Yongqiang;Wang, Jianglai;Ma, Jinxiu;Liu, Lu;Islam, Rehmat;Qi, Yonghong;Li, Jiajia;Shen, Tong
关键词:Oregano oil; Clove oil; Pectobacterium carotovorum subsp; carotovorum; Biofilm formation; Virulence factors; Soft rot
-
Numerical study of hydrodynamic effects on Manila clam population distribution and transport in the Southwest Laizhou Bay, China
作者:Zhong, Yi;Zhang, Jihong;Zhao, Yunxia;Liu, Yi;Wu, Wenguang;Zhong, Yi;Zhang, Jihong;Liu, Yi;Wu, Wenguang;Song, Dehai;Song, Dehai;Qiao, Lulu;Qiao, Lulu;Qiao, Lulu
关键词:Numerical model; Hydrodynamic environment; Manila clam; Swimming behavior; Larval transport
-
Comparing diversity patterns and processes of microbial community assembly in water column and sediment in Lake Wuchang, China
作者:Li, Xuemei;Meng, Zihao;Chen, Kang;Hu, Feifei;Liu, Lu;Zhu, Tingbing;Yang, Deguo
关键词:Microbial community assembly; Species diversity; Functional diversity; Stochastic processes; Environmental factors; Lake Wuchang
-
Response of soil organic carbon stability and sequestration to long-term phosphorus application: insight from a 9-year field experiment in saline alkaline paddy soil
作者:Chen, Mengmeng;Song, Xiaoyou;Liu, Lu;Jing, Zhichang;Miao, Jianyong;Ding, Xiaodong;Zhang, Shirong;Chen, Mengmeng;Liu, Lu;Li, Yuyi
关键词:Phosphorus addition; Carbon fractions; Soil carbon sequestration; Saline alkaline soil
-
Natural Products and Biological Activities of Plants from Genus Morus: 2011-2023
作者:Wang, Yan-Ao;Liu, Lu;Wang, Yan-Ao;Liu, Chao;Guo, Xu;Zhang, Meng-Qi;Sun, Shutao;Sun, Jin-Yue;Chen, Ying-Ying;Khan, Afsar
关键词:Genus Morus; Traditional uses; Phytochemistry; Pharmacology; Prenylated flavonoids; Diels-alder adducts
-
Environmental and spatial factors play different roles in phytoplankton community assembly in different hydrological seasons in Lake Wuchang, China
作者:Meng, Zihao;Chen, Kang;Hu, Feifei;Liu, Lu;Yang, Deguo;Li, Xuemei
关键词:Lake Wuchang; phytoplankton; community assembly; hydrological season; Yangtze River
-
Genome-Wide Survey Reveals the Microsatellite Characteristics and Phylogenomic Relationships of Dictyosoma burgeri (Zoarcales, Perciformes)
作者:Liu, Lu;Fan, Xin;Li, Chunhou;Li, Chunhou;Liu, Qi;Chen, Zhi
关键词:Phylogenomic; Genome survey; Bony fish; Mitochondrial genome