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Fishery resource abundance prediction method based on layered water temperature and application thereof

A technology for fishery resources and forecasting methods, which is applied in the field of marine resources research and can solve problems such as low forecasting accuracy and incomplete consideration.

Pending Publication Date: 2021-02-05
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of incomplete consideration and low prediction accuracy in the prior art, and provide a method for predicting Argentine squid fishing grounds with comprehensive consideration and high prediction accuracy

Method used

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  • Fishery resource abundance prediction method based on layered water temperature and application thereof
  • Fishery resource abundance prediction method based on layered water temperature and application thereof
  • Fishery resource abundance prediction method based on layered water temperature and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] In order to illustrate the fishery prediction situation in detail, based on the fishery production data from 2015 to 2017 (coordinates range from 54.6° to 65°W and 35° to 55°S) the production data of the Argentine smooth squid in the Southwest Atlantic are respectively analyzed for the 0-meter water in the same period. Deep sea surface temperature, 50-meter water depth sea surface temperature, 100-meter water depth sea surface temperature, 200-meter water depth sea surface temperature, 300-meter water depth sea surface temperature, 400-meter water depth sea surface temperature and fishery latitude and longitude data are used as model factors for prediction, evaluation and analysis forecast result.

[0071] (1) The geographical space range is selected as 54.6°W~65°W, 35°S~55°S, and the spatial resolution is 0.1°×0.1°. The original latitude and longitude data are converted into 0.1°×0.1° by the following formula Resolution:

[0072]

[0073]

[0074] In the formula...

Embodiment 2

[0109] an electronic device such as Figure 10 As shown, including one or more processors, one or more memories, one or more programs and data collection devices;

[0110] The data collection device is used to obtain the production statistical data of fish C in sea area B in time period A, the latitude and longitude data of sea area B in time period A, the sea surface temperature corresponding to different depths, and the water temperature of fish C in sea area B in the time period to be predicted. The sea surface temperature and latitude and longitude corresponding to the layer depth, one or more programs are stored in the memory, when one or more programs are executed by the processor, so that the electronic equipment performs the same method based on the layered water temperature as in Embodiment 1. A method for forecasting fishery resource abundance.

[0111] It has been verified that the electronic device of the present invention has a simple structure and low cost, and ...

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Abstract

The invention discloses a layered water temperature-based fishery resource abundance prediction method and application thereof, and the method comprises the steps: building a plurality of CPUE prediction models through employing a generalized additive model for the production statistical data of fishes C in a sea area B in a time period A, the longitude and latitude data of the sea area B in the time period A and the sea surface temperatures corresponding to different depths; analyzing each CPUE prediction model based on a red pool information criterion, and selecting the model with the minimum AIC value as an optimal prediction model; inputting the sea surface temperature and latitude and longitude corresponding to the water layer depth of the sea area B fish C in the to-be-predicted timeperiod into the final prediction model to complete prediction of the CPUE of the sea area B fish C in the to-be-predicted time period. The fishery resource abundance is predicted on the basis of thelayered water temperature, the model is established on the basis of the GAM model, the prediction precision is greatly improved, reliable guidance can be provided for development of ocean fishery resources, and the method has great application prospects.

Description

technical field [0001] The invention belongs to the technical field of marine resources research, and relates to a method for predicting the abundance of fishery resources based on stratified water temperature and its application. Background technique [0002] Argentine squid (Illex argentinus) is one of the most economically important cephalopods in the world, and it is also an important fishing target for squid fishing boats in my country. Argentine squid is extremely rich in resources, but it is very susceptible to the influence of the environment and there are inter-annual differences. Water temperature has a greater impact on its growth and migration. Squid are concentrated in the continental shelf and slope of the Southwest Atlantic Ocean at 22°-54°S, and the resources at 35°-52°S are particularly abundant. [0003] Existing studies have shown that the resources of Argentinian squid are closely related to sea surface temperature. Wang Jintao et al. used correlation an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02G06F16/29A01K61/10
CPCG06Q10/04G06Q10/06393G06Q50/02G06F16/29A01K61/10Y02A40/81
Inventor 雷林陈新军汪金涛
Owner SHANGHAI OCEAN UNIV
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