海洋渔业2025，Vol.47Issue(5)：650-661,12.
基于船位数据的南极磷虾中层拖网船作业状态特征提取
Extraction of operational status features of Antarctic krill midwater trawlers based on vessel location data
摘要
Abstract
The operation characteristics of Antarctic krill midwater trawlers based on the location data were investigated.The VMS location data were collected from three Chinese Antarctic krill vessels:Furonghai,Longteng,and Longfa.The operational statuses were classified as fishing,sailing and drifting,and they were evaluated preliminarily according to a method combining the threshold of speed and heading data.The evaluation results were compared with fishing logbooks for verification,and finally,the actual status of the vessels was determined as a dataset.The dataset was divided into training set and test set by 8∶2.A deep neural networks(DNN)multiple operational status identification algorithm was constructed based on speed,heading,duration,latitude and longitude.The operation days,operation date and corresponding operation location information of the fishing vessels were extracted,compared and verified with the actual recorded fishing log data.The results show that:the errors between the extracted result and the actual recorded result are small,and the monthly difference in the number of operation days is within 0-2 d,the average accuracy rate is 93.88％;the difference in operation distance is small,and 94％of the total is within 20 km;compared with k-nearest neighbor(KNN),logistic regression,Bayesian algorithm and decision tree,DNN performed better in vessel operational status identification,with the best accuracy of 87.04％.The research can provide some references for identifying the operational status,fishing and fisheries management of Antarctic krill trawlers.关键词
南极磷虾/船位数据/作业状态/深度学习Key words
Antarctic krill/vessel location data/operational status/deep learning分类
农业科技引用本文复制引用
苏冰,何瑞麟,赵国庆,蒋沛雯,李阳,商宸,韩海斌,沈烈,张衡..基于船位数据的南极磷虾中层拖网船作业状态特征提取[J].海洋渔业,2025,47(5):650-661,12.基金项目
青岛海洋科技中心山东省专项经费(2022QNLM030002-1) （2022QNLM030002-1）
国家重点研发计划(2022YFC2807504) （2022YFC2807504）
中国水产科学研究院东海水产研究所中央级公益性科研院所基本科研业务费专项资金(2021M06) （2021M06）
