Differences in Nutrient Compositions of Cultured Marine Diatoms: Different Sea Areas, Sizes, and Seasons

  • Shengjun Pan
  • Zhiliang ShenEmail author
  • Wenping Liu
  • Xiaotian Han
  • Hui Miao
  • Haiqing Ma
Part of the Springer Earth System Sciences book series (SPRINGEREARTH)


Comparing the nutrient compositions of cultured different-sized fractions of dominant phytoplankton species Skeletonema costatum, Chaetoceros curvisetus, and Thalassiosira nordenskiöldii collected in different sea areas in various seasons, the N content of these species was similar, while the C, P, and Si contents of S. costatum from eutrophic Changjiang estuary were higher than those from Jiaozhou Bay. The C, N, P, and Si contents of cultured phytoplankton from Jiaozhou Bay increased with size fraction augmentation, and the percentages of C, N, and P followed the same trend, while the percentage of Si remained constant. Moreover, S. costatum from small-sized fraction assimilated Si more easily than C. curvisetus and T. nordenskiöldii, which is explained by the dominance of S. costatum under the conditions of low SiO3–Si concentration in Jiaozhou Bay seawater. The C, N, P, and Si contents of cultured S. costatum collected during winter were highest, which is consistent with the phytoplankton blooming seasons in Jiaozhou Bay. The very low SiO3–Si concentration in the seawater during spring restrained the growth of phytoplankton, supported by the fact that the N, P, and Si contents and their ratios in cells of cultured S. costatum were low in spring season.


Nutrient composition Culture Skeletonema costatum Chaetoceros curvisetus Thalassiosira nordenskiöldii Changjiang estuary Jiaozhou Bay 


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2020

Authors and Affiliations

  • Shengjun Pan
    • 1
  • Zhiliang Shen
    • 1
    Email author
  • Wenping Liu
    • 2
  • Xiaotian Han
    • 1
  • Hui Miao
    • 1
  • Haiqing Ma
    • 3
  1. 1.Key Laboratory of Marine Ecology and Environmental SciencesInstitute of Oceanology, Chinese Academy of SciencesQingdaoChina
  2. 2.Rizhao Entry-Exit Inspection and Quarantine Bureau of P. R. ChinaRizhaoChina
  3. 3.Institute of Oceanology, Chinese Academy of SciencesQingdaoChina

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