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A Pilot Study on the Application of Acoustic Data Collected from a Korean Purse Seine Fishing Vessel for the Chub Mackerel

  • Myounghee Kang
  • Bo-Kyu Hwang
  • Hyun-Su Jo
  • Hui Zhang
  • Jae-Bong LeeEmail author
Article
  • 58 Downloads

Abstract

This paper describes the first use of acoustic data collected during normal fishing operations from a South Korean commercial fishing vessel. Acoustic data (120 kHz) were collected from a purse seine fishing vessel while targeting chub mackerel (Scomber japonicus) between 13 September and 7 October 2014 in the southern West Sea and near Jeju Island. Acoustic backscatter data from 21 fishing events were used to delineate fish school characteristics and to estimate the chub mackerel biomass which was compared with the catch. With regard to the fish school description, the volume back scattering strength (SV) and thickness of the fish schools presented differently. The average and standard deviation of SV was −47.3 ± 2.1 dB. The fish lengths varied greatly and some schools were inordinately long (average and standard deviation length of 137.0 ± 329.6 m). The fish school area largely altered. The average distributional depth and the distance between fish school and sea bottom were 31.8 m and 42.7 m, respectively, indicating that the fish schools attracted by light were mainly located close to the water surface. On average, the chub mackerel biomass was 1.7 times larger than the catch. The correlation between the chub mackerel biomass and the catch was low positive (r = 0.3, p < 0.05). This paper presented that available echo sounders installed fishing vessels can be used for helping in the chub mackerel resources management in South Korea.

Keywords

Commercial fishing vessel Echosounder Chub mackerel Biomass Fish schools 

Notes

Acknowledgements

This work was supported by a grant from the National Institute of Fisheries Science (R2018024) and under the framework of international cooperation program managed by the National Research Foundation of Korea (2017K2A9A2A06015027, FY2017). We would like to thank Dr. Steven Barbeaux for his contribution to this work in helping to develop cooperative research in Korean fisheries, as well as, the US/ROK Joint Partnership Fisheries Panel for partially funding this work. We thank staff and crew of the “71 Kumyoung” and the Kumyoung Fishing Company for cooperate with us to record acoustic data. Also, we are very grateful to Mr. Jongkwan Hong from Simrad Korea for assistance in collecting data during the calibration trials and for providing useful information for this study.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Myounghee Kang
    • 1
  • Bo-Kyu Hwang
    • 2
  • Hyun-Su Jo
    • 2
  • Hui Zhang
    • 3
  • Jae-Bong Lee
    • 4
    Email author
  1. 1.Department of Maritime Police and Production System/ The Institute of Marine IndustryGyeongsang National UniversityGyeongsangnam-doSouth Korea
  2. 2.Marine Production System Major, School of Marine Industry Transportation Science and TechnologyKunsan National UniversityGunsan-siSouth Korea
  3. 3.Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture of China; Yangtze River Fisheries Research InstituteChinese Academy of Fishery SciencesWuhanPeople’s Republic of China
  4. 4.Costal Water Fisheries Resources Research DivisionNational Institute of Fisheries ScienceBusanSouth Korea

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