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Updated: Aug 7, 2026

Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae
Published on: October 25, 2024
[Effects of Cd (II) on the growth of 8 species of marine microalgae]
Yu-jie Zhan1, Xiu-lin Wang, Ru-jun Yang
1College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China. qianjinnanmai@yeah.net
Abstract:
Effects of Cd (II) on the growth of 8 species of marine microalgae were studied in batch culture experiment. The experimental results show that higher doses of Cd (II) inhibite the growth of Heterosigma akashiwo Hada. Chaetoceros curvisetus. Skeletonema costatum (Greville) Cleve, Pheodactylum tricornutum Bohlin, Prorocentrum micans. Gymnodinium sp., Platymonas helgolanidica, Platymonas subcordiforus. But, lower doses of Cd (II) (50 microg/L and 100 microg/L) promote the growth of Skeletonema costatum (Greville) Cleve and Platymonas helgolanidica. A growth model, with consideration of effect of Cd (II) on the growth of marine microalgae, was developed by incorporating Logistic growth model with Lorentz equation and GaussAmp equation. Lorentz equation can describe the effect of Cd (II) on the growth rate constant while GaussAmp equation can describe the effect of Cd (II) on the final biomass of microalgae. It was demonstrated that the growth model showed in accordance with the experimental data.
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