Discussion of Acipenser Sinensis habitat suitability index model

Based on the former researches by minimum method on the impacts of the ecological impact factors (water depth, water temperature, substrate, et al) on suitability indices of adult fish growth, spawning and hatch, we calculate the habitat suitability indices by the parallel method, and use different simulation equations (polynomial equation, exponential equation, logistic equation, et al) to compare the parallel method with the minimum method, which shows that the result of parallel method matches the measured data better, equation of higher degree can show habitat suitability index model better, and the coefficient of determination up to more than 0.9, and provide reference for the researches on the effect of eco-factors on the Acipenser Sinensis effectively.