Long-term dynamics of net-phytoplankton community under environmental drivers in Jiaozhou Bay, China

Shimeng YANG; Shujin GUO; Mingliang ZHU; Yongfang ZHAO; Shan ZHENG; Xiaoxia SUN

doi:10.1007/s00343-025-4293-z

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Long-term dynamics of net-phytoplankton community under environmental drivers in Jiaozhou Bay, China

Ecology | Updated：2025-10-16

- Long-term dynamics of net-phytoplankton community under environmental drivers in Jiaozhou Bay, China
- Journal of Oceanology and Limnology Vol. 43, Issue 5, Pages: 1477-1487(2025)
- Affiliations：
  
  1.Jiaozhou Bay National Marine Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  2.University of Chinese Academy of Sciences, Beijing 100049, China
  3.Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
- Author bio：
  
  zhengshan@qdio.ac.cn
  xsun@qdio.ac.cn
- Funds：
- DOI：10.1007/s00343-025-4293-z
  CLC：
- Received：05 November 2024，
  
  Accepted：13 November 2024，
  
  Published：01 September 2025
- Accepted：
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YANG Shimeng,GUO Shujin,ZHU Mingliang,et al.Long-term dynamics of net-phytoplankton community under environmental drivers in Jiaozhou Bay, China[J].Journal of Oceanology and Limnology,2025,43(05):1477-1487.
DOI：

YANG Shimeng,GUO Shujin,ZHU Mingliang,et al.Long-term dynamics of net-phytoplankton community under environmental drivers in Jiaozhou Bay, China[J].Journal of Oceanology and Limnology,2025,43(05):1477-1487. DOI： 10.1007/s00343-025-4293-z.

摘要

Abstract

To better understand the spatial variations in phytoplankton abundance and community structure and their relationship with environmental parameters in Jiaozhou Bay

Yellow Sea

in Shandong

East China

observations were conducted to estimate abundance of net-phytoplankton and key groups along with environmental parameters in three typical sites in seasonal survey from 2004 to 2016 in the bay. The spatial patterns of phytoplankton abundance differed obviously between the inner and the outer bay. The abundance of total phytoplankton and diatoms increased obviously in the northern part of the bay

while decreased in the southern part and outer bay. An increase in dinoflagellate abundance was obvious in the outer bay. Variations in the dynamics of phytoplankton abundance could be largely explained by the succession of chain-forming diatoms and dinoflagellates. The key chain forming diatom groups

Chaetoceros

and

Thalassiosira

increased markedly

especially in winter in the northern part of the bay

hile in the southern part and the outer bay

Chaetoceros

declined. Besides

the key dinoflagellate groups

Ceratium

and

Noctiluca

increased noticeably

resulting in a significant increase in the dinoflagellate/diatom ratio in the outer bay. These variations has a significant correlation with environmental variables of surface seawater temperature

phosphorus

nitrogen

salinity

and N/Si ratio (

0.05). For the key groups

temperature was the primary driver of dinoflagellate abundance

while the N/P ratio was critical for chain-forming diatoms. The abundance of phytoplankton showed a clear spatial pattern and associated obviously with environmental factors in the marine ecosystems

offering insights into coastal ecosystem management and conservation strategies.

关键词

Keywords

references

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