Comparative study of phosphorus strategies of three typical harmful algae in Chinese coastal waters

A series of batch culture experiments were carried out to compare the specific eco-physiological responses of three typical harmful algae of Chinese coastal waters to environmental phosphorus (P) variations. Results showed that Skeletonema costatum, when compared with Prorocentrum donghaiense or Ale...

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Bibliographic Details
Published in:Journal of plankton research 2008-09, Vol.30 (9), p.1007-1017
Main Authors: Ou, Linjian, Wang, Dan, Huang, Bangqin, Hong, Huasheng, Qi, Yuzao, Lu, Songhui
Format: Article
Language:English
Subjects:
Algae
Algal blooms
Animal and plant ecology
Animal, plant and microbial ecology
Batch culture
Biological and medical sciences
Biological poisons
Coastal waters
Comparative studies
Dissolved organic phosphorus
Fundamental and applied biological sciences. Psychology
General aspects
Growth rate
Organic phosphorus
Phosphates
Phosphorus
Phytoplankton
Skeletonema costatum
Survival
Synecology
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Summary:A series of batch culture experiments were carried out to compare the specific eco-physiological responses of three typical harmful algae of Chinese coastal waters to environmental phosphorus (P) variations. Results showed that Skeletonema costatum, when compared with Prorocentrum donghaiense or Alexandrium catenella, was a better growth strategist in nutrient-rich condition. Although S. costatum had a greater advantage in phosphate affinity and could save more internal P, it also had a higher P demand for growth and it used up all its resources to sustain a high growth rate. The growth of S. costatum collapsed soon after phosphate depletion. P. donghaiense and A. catenella, with lower growth rates, could survive well under P-limited conditions. With higher affinities for dissolved organic phosphorus (DOP), P. donghaiense and A. catenella might likely make good use of the metabolized DOP in the water after the collapse of S. costatum blooms to sustain their growth.
ISSN:0142-7873
1464-3774
DOI:10.1093/plankt/fbn058