《Tab.2 AIC of the step-wise GLM》

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《Response of Spatio-temporal Distribution of Fishery Resources to Mairne Environment in the Northern South China Sea》

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Before standardization，CPUE was carried out logarithmic transformation to make it basically conform to the normal distribution（Fig.2）.The Stepwise regression method of R software was applied to construct GLM model with AIC value as the screening factor，and R2represented the degree that the predictive variable interpreted the response variable.The results showed that the AIC value of the model decreased when the factors of Year，Month，Lon，SST and Chl a were introduced，which could explain 98%of the change of CPUE（Tab.2）.