Pacific Ocean European flying squid resource complimentary quantity prediction method and application

A technology of resource replenishment and forecasting method, which is applied in the field of resource replenishment forecasting of the Pacific pleura squid, and can solve problems such as deviations

Active Publication Date: 2017-01-04
SHANGHAI OCEAN UNIV
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Problems solved by technology

[0008] At present, most of the forecast methods for a certain fishery species use multivariate statistical methods and habitat index methods, but the prediction results often have certain deviations from the actual situation.

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  • Pacific Ocean European flying squid resource complimentary quantity prediction method and application
  • Pacific Ocean European flying squid resource complimentary quantity prediction method and application
  • Pacific Ocean European flying squid resource complimentary quantity prediction method and application

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Embodiment Construction

[0037] The present invention will be further elaborated below, and those skilled in the art should understand that the embodiments are only for illustration and do not constitute any limitation to the present invention.

[0038]Pacific pufferfish is an annual species with a short life cycle, usually there is no remaining population, only supplementary population, and the replenishment in the next year mainly depends on the marine environmental conditions of the spawning ground. If the egg survival rate is high under suitable marine environmental conditions, the resource replenishment of Pacific pleated squid will be good in the following year, and vice versa. The spawning time of Pacific pleated squid is usually October-December, the sea surface temperature suitable for spawning is 15-20°C, and the spawning sea area is 125°-140°E, 25°-40°N. The fishery data of the present invention comes from the 2013 Pacific pleated squid autumn population resource assessment report in Japan,...

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Abstract

The invention discloses a Pacific Ocean European flying squid resource complimentary quantity prediction method and application. The Pacific Ocean European flying squid resource complimentary quantity prediction method comprises steps of counting SST data of a sea area during a range of 125 degree-140 degree E, 25 degree to 40 degree N from 1997-2009, counting chl a concentration data of the sea area during a range of 125 degree-140 degree E, 25 degree-40 degree N from 1997 to 2009, counting CPUE of the Pacific Ocean European flying squid population from 1998 to 2010, counting an area of a sea area during a range of 125 degree-140 degree E, 25 degree-40 degree N from October to December, wherein the sea surface temperature in the sea area is from 15 DEG to 20 DEG and then calculating PS; obtaining a point of a time sequence of the CPUE, wherein the point has a highest correlation degree with the SST, chl a concentration data and the time sequence of the PS value; performing multi-linear regression analysis; using BP nerve network model prediction; and obtaining the CPUE prediction value of the Pacific Ocean European flying squid and calculating prediction accuracy.

Description

technical field [0001] The invention relates to a method for forecasting fishing conditions, in particular to a method for predicting the resource replenishment of autumn-born group of Pacific pleura squid with the range of spawning grounds at 125°-140°E and 25°-40°N. Background technique [0002] Todarodes pacificus, also known as Japanese squid, oriental squid, is a kind of oceanic economic squid, mainly distributed in the 21°-50°N waters of the Northwest Pacific Ocean, namely the Sea of ​​Japan, the Pacific coast of Japan, and the Yellow Sea of ​​China. ,East my country Sea. There are three main seasonal spawning groups of Pacific puffer squid, namely summer group, autumn group and winter group. At present, the main fishing groups are autumn group and winter group. The current main fishing area of ​​the Qiusheng group is the Sea of ​​Japan, and the catches in Japan and South Korea are relatively high. Its main spawning areas are the East China Sea and the Tsushima Strai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/02
Inventor 陈新军胡飞飞陈芃
Owner SHANGHAI OCEAN UNIV
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