Medium and long-term prediction of saury resource abundance based 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 scholars at home and abroad have conducted good research on the resource replenishment of Pacific saury spawning grounds, feeding grounds, and the Kuroshio current in the Northwest Pacific Ocean, and established corresponding resource forecast models. How to use climatic factors to predict its resources in advance is blank

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  • Medium and long-term prediction of saury resource abundance based on pacific oscillation index
  • Medium and long-term prediction of saury resource abundance based on pacific oscillation index
  • Medium and long-term prediction of saury resource abundance based on pacific oscillation index

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[0020] 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.

[0021] Such as figure 1 As shown, the present embodiment provides a medium- and long-term prediction method for the abundance of saury resources based on the Pacific Oscillation Index, which includes the following steps:

[0022] Step 101, obtaining the monthly Pacific Oscillation Index PDO value of the Northwest Pacific Ocean where the saur...

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Abstract

The invention discloses a mid-long-term prediction method of saury resource abundance based on Pacific oscillation index, which comprises the following steps: monthly Pacific oscillation index PDO value of the northwest Pacific area is acquired where the saury is distributed in the previous N years; the time series analysis method is adopted, the correlation between the abundance of saury resources CPUE and the monthly PDO value of the previous N years is analyzed, and the monthly PDO value of P < 0.05 is obtained. The monthly PDO value was used as the climatic factor affecting the abundance of saury resources. The results showed that the abundance of saury resources CPUE is correlated with the monthly PDO value. Multivariate linear equation is used to establish several abundance prediction models of saury resource and to calculate P value statistically. Among the models mentioned above, the model with the smallest P value is selected as the optimal model.

Description

technical field [0001] The invention relates to the technical field of mid- and long-term prediction of fish resource abundance, in particular to a mid- and long-term prediction method for saury resource abundance based on the Pacific Oscillation Index. Background technique [0002] Pacific saury is the main fishing target of pelagic fisheries in the world, and occupies an important position in the world's marine fishing output. Its fishery resources are also extremely rich, and the distribution of operating fisheries is also very wide. However, its commercial development and utilization are mainly distributed in the Northwest Pacific Ocean. Pacific saury is a fish that spawns many times. The spawning season is very long, extending from autumn to the next spring. The main spawning ground in autumn is in the mixed waters north of the Kuroshio front, and in winter and spring in the Kuroshio waters. Saury grows very fast. The maximum body length can reach 35-40cm, usually 25-3...

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Application Information

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Patent Type & Authority Applications(China)
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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