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Siliceous microplankton fluxes and seasonal variations in the central South China Sea during 1993–1995: monsoon climate and El Niño responses

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Chinese Science Bulletin

Abstract

Seasonal variations of radiolarian and diatom fluxes in the central South China Sea during 1993–1995 were overwhelmingly controlled by monsoon climate. Radiolarian and diatom increased obviously during the Northeast (from November to February) and Southwest (from June to September) monsoons and decreased during the periods between the monsoons. The change of circulation driven by the monsoons improved water exchange in the different areas that brought rich nutrient materials for the surface microplankton, thereby enhancing radiolarian and diatom fluxes. Variation of radiolarian flux coincided with organic carbon flux, surface primary and export productivities. High radiolarian flux corresponded to high surface primary productivity. Radiolarian and diatom fluxes raised abnormally during 1994–1995 could be attributed to the El Nino event during the period.

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Authors and Affiliations

  1. Laboratory of Marine Geology of MOE, Tongji University, 200092, Shanghai, China

    Rujian Wang & Jun Lin

  2. The Key Laboratory of Submarine Geoscience, State Oceanic Administration, 310012, Hangzhou, China

    Lianfu Zheng, Ronghua Chen & Jianfang Chen

Authors
  1. Rujian Wang
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  2. Jun Lin
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  3. Lianfu Zheng
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  4. Ronghua Chen
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  5. Jianfang Chen
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Correspondence to Rujian Wang.

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Wang, R., Lin, J., Zheng, L. et al. Siliceous microplankton fluxes and seasonal variations in the central South China Sea during 1993–1995: monsoon climate and El Niño responses. Chin. Sci. Bull. 45, 2168–2172 (2000). https://doi.org/10.1007/BF02886323

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  • DOI: https://doi.org/10.1007/BF02886323

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