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Prediction method of abundance of ocean squid resources based on gray system
Prediction method of abundance of ocean squid resources based on gray system
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机译：基于灰色系统的海鱿资源丰富度预测方法
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摘要
The present invention relates to a method of predicting stock quantities of short life cycle species, and belongs to the field of pelagic fishing. 1. A method of predicting the abundance of ocean squid resources based on a gray system, the gray correlation analysis method being used to calculate the gray correlation magnitude of the influence factor of the abundance of ocean squid resources, Prediction of the abundance of ocean squid resources using the elements selected in step 2 using Step 2 of selecting the influence factor having a large degree of gray correlation as an element of the stock abundance prediction model and the discrete GM model Perform step 3 of model creation and validity analysis including relative error and correlation coefficient analysis on the prediction model of step 3, and the model with the smallest relative error and the highest correlation coefficient is most appropriate And 4) selecting as a prediction model. In the present invention, the gray system is used to predict the abundance of squid resources with a high accuracy of 90% or more, and provides a reference for fishery production practice and scientific management. [Selected figure] Figure 1
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