Spatial information extraction of fishing grounds for light purse seine vessels in the Northwest Pacific Ocean based on AIS data
文献类型： 外文期刊
作者： Wan, Lijun 1 ; Cheng, Tianfei 2 ; Fan, Wei 2 ; Shi, Yongchuang 2 ; Zhang, Heng 2 ; Zhang, Shengmao 2 ; Yu, Linlin 2 ; Dai, Yang 2 ; Yang, Shenglong 2 ;
作者机构： 1.Dalian Ocean Univ, Sch Nav & Naval Architecture, Dalian 116023, Peoples R China
2.East China Sea Fisheries Res Inst, Chinese Acad Fishery Sci, Key Lab East China Sea & Ocean Fishery Resources E, Minist Agr, Shanghai 200090, Peoples R China
3.Chinese Acad Fishery Sci, Key & Open Lab Remote Sensing Informat Technol Fis, Shanghai 200090, Peoples R China
4.Laoshan Lab, Qingdao 266237, Peoples R China
5.Shanghai Ocean Univ, Coll Informat, Shanghai 201306, Peoples R China
关键词： Northwest pacific ocean; Light purse seine vessels; AIS; GMM; KDE; HSA
期刊名称：HELIYON （ 影响因子：4.0； 五年影响因子：4.1 ）
ISSN：
年卷期： 2024 年 10 卷 7 期
页码：
收录情况： SCI
摘要： Ecological fishery management requires high -precision fishery information to support resource management and marine spatial planning. In this paper, the Automatic Identification System (AIS) was adopted to extract the spatial information on the fishing grounds of light purse seine vessels in the Northwest Pacific Ocean. The spatial distributions of fishing grounds mapped by the data mining, kernel density analysis and hotspot analysis methods were compared. The spatial similarity index was applied to determine the spatial consistency between the computed spatial information and fisheries resource information. Finally, the spatial information derived by the best method was used to investigate the characteristics of fishing activity. The results showed that: the speed of light purse seine vessels related to operations was lower than 1.6 knots. The spatial information extracted by the three methods was consistent with the catch data distribution, and the spatial similarity between the fishing effort and catch data was the highest. The spatial variation in fishing activity was similar to that in the chub mackerel migration route. AIS data could be used to provide high -resolution fishery information. Light purse seine fishing vessels typically operate and travel along the exclusive economic zone boundary, and increased attention must be given to fishing vessel operation supervision. A comprehensive supervision system can be employed to monitor the operations of fishing vessels more effectively. The results of this study can provide technical support for the management of fishing activities and conservation of marine resources in this region using AIS data.
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