A prediction method and device for unit fishing effort fishing yield of a fishing ground
The invention provides a prediction method for unit fishing effort fishing yield of a fishing ground. The prediction method comprises the steps that longitude and latitude of a to-be-predicted area are divided into a plurality of areas; Obtaining the total monthly fishing mantissa, the total monthly...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a prediction method for unit fishing effort fishing yield of a fishing ground. The prediction method comprises the steps that longitude and latitude of a to-be-predicted area are divided into a plurality of areas; Obtaining the total monthly fishing mantissa, the total monthly fishhook number and the marine environment data of each area; Obtaining an initial value of the unit fishing effort fishing yield; Taking a preset form of unit fishing efforts as a prediction variable, and predicting prediction variables of a plurality of prediction models on the basis of a relation function constructed by the prediction variable and marine environment data; Obtaining the predicted unit fishing efforts fishing yield; Calculating the Spearman level correlation coefficients of the unit fishing efforts before and after prediction; Determining a target prediction model according to the Spearman level correlation coefficient; And obtaining the predicted unit fishing efforts fishing yield corresponding |
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