Examination of Daytime Lengths Influence on Phytoplankton Growth in Jiaozhou Bay, China

This study showed how the daytime length in Jiaozhou Bay affected the water temperature, which in turn affected the phytoplankton growth when solar radiation was sufficient for phytoplankton photosynthesis. Jiaozhou Bay observation data collected from May 1991 to February 1994 were used to analyze the daytime length vs water temperature relationship. Our study showed that daytime length and the variation controlled the cycle of water temperature flunctuation. Should the cyclic variation curve of the daytime length be moved back for two months it would be superimposed with temperature change. The values of daytime length and temperature that calculated in the dynamical model of daytime length lag vs water temperature were consistent with observed values. The light radiation and daytime length in this model determined the photochemistry process and the enzymic catalysis process of phytoplankton photosynthesis. In addition, by considering the effect of the daytime length on water temperature and photosynthesis, we could comprehend the joint effect of daytime length, water temperature, and nutrients, on the spatiotemporal variation of primary production in Jiaozhou Bay.

作 者： 楊東方 高振會 張經(jīng) 崔文林 石強(qiáng)   作者單位： 楊東方(College of Fishery Science, Shanghai Fisheries University, Shanghai 200090, China;Beihai Monitoring Center of State Oceanic Administration, Qingdao 266033, China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China)

高振會,崔文林,石強(qiáng)(Beihai Monitoring Center of State Oceanic Administration, Qingdao 266033, China)

張經(jīng)(College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China;State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China) 

刊 名： 中國海洋湖沼學(xué)報(英文版)  ISTIC SCI 英文刊名： CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY  年，卷(期)： 2004 22(1)  分類號： P7  關(guān)鍵詞： daytime length   water temperature   primary production   Jiaozhou Bay