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基于渔业水平扫描声呐数据的南极磷虾集群回波信号识别及特征分析

WANG Weijie FAN Gangzhou ZHAO Xianyong WANG Xinliang TANG Yong

中国水产科学2025，Vol.32Issue(10)：1478-1488,11.
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中国水产科学2025，Vol.32Issue(10)：1478-1488,11.DOI:10.12264/JFSC2025-0117

基于渔业水平扫描声呐数据的南极磷虾集群回波信号识别及特征分析

Identification and characteristic analysis of the echo signal of Antarctic krill swarms using fishery scanning sonar data

WANG Weijie 1FAN Gangzhou 2ZHAO Xianyong 2WANG Xinliang 2TANG Yong3

作者信息

  • 1. College of Marine Living Resource Sciences and Management,Shanghai Ocean University,Shanghai 201306,China||Key Laboratory of Sustainable Development of Polar Fisheries,Ministry of Agriculture and Rural Affairs||Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China
  • 2. Key Laboratory of Sustainable Development of Polar Fisheries,Ministry of Agriculture and Rural Affairs||Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China||Laboratory for Marine Fisheries Science and Food Production Processes,Qingdao Marine Science and Technology Center,Qingdao 266237,China
  • 3. College of Marine Living Resource Sciences and Management,Shanghai Ocean University,Shanghai 201306,China
  • 折叠

摘要

Abstract

This study proposed a method for identifying the echo signals of Antarctic krill(Euphausia superba)swarms in fishery scanning sonar data.Based on the Simrad SX90 sonar data collected by the krill fishing vessel"Fuxinghai"during the 2023/24 fishing season in the waters around the South Orkney and South Shetland Islands,the method was demonstrated and applied to preliminary analyses of swarm echo area,perimeter,and distribution depth.The results showed that krill swarm echoes could be effectively identified through a series of preprocessing steps,including compensation gain adjustment,image segmentation,and contour feature extraction.The shapes of krill swarms in sonar echograms were mainly classified into three types:single-ellipse,multiple-ellipse,and band-like.The proportions of single-ellipse,multiple-ellipse,and band-like types were 16.82％,38.72％,and 44.46％,respectively.Among these,the band-like type exhibited the largest average echo area,while the single-ellipse type had the smallest.This method provides an effective approach for the scientific utilization of fishery scanning sonar in target identification during fishery operations and offers valuable insights into the morphological and spatial characteristics of Antarctic krill swarms.

关键词

渔业水平扫描声呐/南极磷虾/回波信号处理/目标特征

Key words

fishery scanning sonar/Antarctic krill/echo signal processing/target characteristics

分类

农业科技

引用本文复制引用

WANG Weijie,FAN Gangzhou,ZHAO Xianyong,WANG Xinliang,TANG Yong..基于渔业水平扫描声呐数据的南极磷虾集群回波信号识别及特征分析[J].中国水产科学,2025,32(10):1478-1488,11.

基金项目

国家重点研发计划项目(2023YFD2401201) （2023YFD2401201）

中国水产科学研究院院级基本科研业务费专项(2024TD02). （2024TD02）

中国水产科学

OA北大核心

1005-8737

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