钱静, 李佳俊, 陈作志, 马胜伟, 张鹏, 邱永松, 蔡研聪. 基于北斗船位数据的南海大型灯光罩网渔业研究[J]. 南方水产科学, 2022, 18(6): 1-9. DOI: 10.12131/20220001
引用本文: 钱静, 李佳俊, 陈作志, 马胜伟, 张鹏, 邱永松, 蔡研聪. 基于北斗船位数据的南海大型灯光罩网渔业研究[J]. 南方水产科学, 2022, 18(6): 1-9. DOI: 10.12131/20220001
QIAN Jing, LI Jiajun, CHEN Zuozhi, MA Shengwei, ZHANG Peng, QIU Yongsong, CAI Yancong. An investigation of large-size light falling-net fishing vessels operating in South China Sea based on Beidou VMS data[J]. South China Fisheries Science, 2022, 18(6): 1-9. DOI: 10.12131/20220001
Citation: QIAN Jing, LI Jiajun, CHEN Zuozhi, MA Shengwei, ZHANG Peng, QIU Yongsong, CAI Yancong. An investigation of large-size light falling-net fishing vessels operating in South China Sea based on Beidou VMS data[J]. South China Fisheries Science, 2022, 18(6): 1-9. DOI: 10.12131/20220001

基于北斗船位数据的南海大型灯光罩网渔业研究

An investigation of large-size light falling-net fishing vessels operating in South China Sea based on Beidou VMS data

  • 摘要: 基于北斗船位数据的渔船监测系统可通过船位特征反映渔船作业特点,为渔业资源的开发管理提供科学依据。对2018年南海外海大型灯光罩网渔业进行了分析。结果显示,北斗船位监控系统共记录来自广东、广西、海南三省区的121艘大型灯光罩网渔船的8 821 681条船位记录,平均每天每艘船406条。北斗船位监控系统记录船位信息的频次在省份间存在差异,且外海明显多于近岸。根据船位数据可判断大型灯光罩网的作业天数及位置变化。其中渔船春季主要在南沙海区作业,夏季主要在珠江口外海作业,秋冬季在北部湾和中、西沙海区作业;2018年共作业19 986 d,作业天数从高到低依次为春季7 768 d (38.87%)、秋季4 738 d (23.71%)、冬季4 406 d (22.04%)、夏季3 074 d (15.38%)。此外,还探讨了应用北斗船位监控系统监测大型灯光罩网渔船的优势与不足,得出利用北斗船位监控系统对南海大型灯光罩网渔船进行监测,可以快速、全面地掌握南海大型灯光罩网渔业的空间分布和动态变化。

     

    Abstract: Beidou vessel monitoring system (VMS), which monitors fishing operations of vessels by vessel position characteristics, can provide scientific references for the development and management of fishery. We explored the large-size light falling-net fishery in the South China Sea based on VMS data in 2018. Beidou VMS obtained a total of 8 821 681 records of 121 vessels from Guangdong, Guangxi and Hainan Provinces, with an average of 406 records per vessel per day. There is a difference in the frequency of Beidou VMS transmission among the vessels from different provinces, and VMS signals were more frequently transmitted when a vessel was operating in the open South China Sea than when it was fishing along the coast. The vessels mainly operated fishing in the Nansha Islands in spring, off the Pearl River Estuary in summer, and in the Beibu Gulf and Zhongsha and Xisha Islands waters in autumn and winter. In 2018, the vessels operated 19 986 fishing days in the South China Sea, decreasing from 7 768 d (38.87%) in spring, 4 738 d (23.71%) in autumn, 4 406 d (22.05%) in winter to 3 074 d (15.38%) in summer. Moreover, we discussed the advantages and disadvantages of Beidou VMS in monitoring the large-size light falling-net vessels. It is showed that using Beidou VMS to study the large-scale light falling-net vessel in the South China Sea can monitor their spatial distribution and dynamic changes quickly and comprehensively.

     

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