Optimal Growth Model of the Cochlodinium Polykrikoides

摘要

Cochlodinium polykrikoides is a typical harmful algal species which generates the red-tide in the coastal zone,southern Korea.Accurate algal growth model can be established and then the prediction of the red-tide occurrence using this model is possible if the information on the optimal growth model parameters are available because it is directly related between the red-tide occurrence and the rapid algal bloom.However,the limitation factors on the algal growth,such as light intensity,water temperature,salinity,and nutrient concentrations,are so diverse and also the limitation function types are diverse.Thus,the study on the algal growth model development using the available laboratory data set on the growth rate change due to the limitation factors are relatively very poor in the perspective of the model.In this study,the growth model on the C.polykrikoides are developed and suggested as the optimal model which can be used as the element model in the red-tide or ecological models.The optimal parameter estimation and an error analysis are carried out using the available previous research results and data sets.This model can be used for the difference analysis between the lab.condition and in-situ state because it is an optimal model for the lab.condition.The parameter values and ranges also can be used for the model calibration and validation using the in-situ monitoring environmental and algal bloom data sets.