Volume 17 Issue 6
Dec.  2021
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SHI Huimin, FAN Wei, ZHANG Han, YANG Shenglong. Spatial analysis of fishing intensity for Illex argentinus based on fishing vessel tracks[J]. South China Fisheries Science, 2021, 17(6): 1-11. DOI: 10.12131/20210010
Citation: SHI Huimin, FAN Wei, ZHANG Han, YANG Shenglong. Spatial analysis of fishing intensity for Illex argentinus based on fishing vessel tracks[J]. South China Fisheries Science, 2021, 17(6): 1-11. DOI: 10.12131/20210010
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Spatial analysis of fishing intensity for Illex argentinus based on fishing vessel tracks

  • 1.

    College of Information, Shanghai Ocean University, Shanghai 201306, China

  • 2.

    East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of East China Sea & Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 200090, China

  • 3.

    Key and Open Laboratory of Remote Sensing Information Technology in Fishing Resource, Chinese Academy of Fishery Sciences, Shanghai 200090, China

  • 4.

    College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

More Information
  • Received Date: January 07, 2021
  • Revised Date: May 27, 2021
  • Accepted Date: June 14, 2021
  • Available Online: July 08, 2021
    Graphical Abstract
    • Abstract
  • In order to understand the spatial behavior of Illex argentinus fishing vessels, we had analyzed the Automatic Identification System (AIS) data from January to May, 2018. Based on data mining method, we identified the trajectories of squid fishing vessels, and drew the fishing intensity distribution map of squid fishing ground. Then we analyzed the spatial distribution characteristics of monthly fishing intensity of I. argentinus fishing ground. The results show that: 1) The velocity distribution of the squid jigging fishing vessels showed obviously bimodal distribution. 2) The period from January to April was the major squid jigging fishing season and the fishing effort was the highest. The fishing intensity of vessels from mainland China was high from February to April, and the vessels from other countries and regions mainly fished in April and May. 3) The monthly fishing effort was spatially autocorrelated and showed patterns of significant aggregation. 4) The analysis of cold and hot spots reveals that the fishing effort in the survey area showed an aggregated distribution in both high and low values, and the fishing hotspots were moving southward from January to May.
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    • References (29)
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