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method for predicting squid resource abundance of Japanese winter school base on Pacific oscillation index

A technology of resource abundance and forecasting methods, applied in forecasting, data processing applications, instruments, etc., can solve problems such as blanks

Inactive Publication Date: 2019-03-26
SHANGHAI OCEAN UNIV
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Problems solved by technology

The above research shows that domestic and foreign scholars have conducted good research on the impact of the Japanese winter squid spawning ground environment on its resource replenishment, and established a corresponding resource forecast model, but how to use climate factors to predict in advance Its resource amount is blank

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  • method for predicting squid resource abundance of Japanese winter school base on Pacific oscillation index

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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Such as figure 1 As shown, the present embodiment provides a method for predicting the abundance of squid resources in winter groups in Japan based on Pacific Oscillation Index, which may further comprise the steps:

[0025] Step 101, obtaining the monthly Pacific Oscillation Index PDO value of the Pacific Ocean side sea area of ​​Hok...

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Abstract

A method for predicting squid resource abundance of Japanese winter school base on Pacific oscillation index includes obtaining monthly Pacific oscillation index PDO value of Pacific side sea area ofHokkaido distribute by Japanese winter school squid in previous N years; The correlation between the abundance of squid resource CPUE and the monthly PDO value in the first N years is analyzed by using the time series analysis method. The monthly PDO value of P < 0.05 is obtained. The monthly PDO value is regarded as the climatic factor affecting the abundance of squid resource in the winter population of Japan. Multivariate linear equation is used to establish several prediction models of squid resource abundance in Japanese winter population and calculate the statistical P value. Among theprediction models of squid resource abundance in Japanese winter population, the model with the smallest statistical P value was selected as the optimal model.

Description

technical field [0001] The invention relates to the technical field of forecasting the abundance of squid resources, in particular to a method for forecasting the abundance of squid resources in winter groups in Japan based on the Pacific Oscillation Index. Background technique [0002] Todarodes pacificus (also known as Japanese squid) is an economically important cephalopod resource in the world, and it is only distributed in the Northwest Pacific Ocean and the Gulf of Alaska in the Eastern Pacific Ocean. It is mainly distributed in the 21°-50°N waters of the western Pacific Ocean, namely the Sea of ​​Japan, the Pacific coast of Japan, and the Yellow Sea and East my country Sea in China. It is an oceanic shallow marine species in the warm temperate zone, inhabits the surface layer to 500m water layer, and has a wide temperature range. According to the spawning season, growth type and migration path of Pacific pleura, it can be divided into three populations: winter group,...

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/02
CPCG06Q10/04G06Q50/02
Inventor 陈新军魏广恩余为张忠方舟韦记朋雷林汪金涛陆化杰
Owner SHANGHAI OCEAN UNIV
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