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    SG-ASAM-2019

    Full Name
    Subgroup on Acoustic Survey and Analysis Methods
    Location:
    Bergen, Norway
    Meeting Start Date/Time:
    Meeting End Date/Time:
    Submissions Due
    Monday, 12 August 2019 - 00:00 Australia/Hobart (Working Group Paper)

    The meeting will be held in Bergen, Norway, at the Institute of Marine Research (https://www.hi.no/en).

    Meeting Report:
    e-sc-38-a6.pdf (247.16 KB)

      Documents

      Document Number Title Agenda Item(s)
      SG-ASAM-2019/01
      More Info
      Acoustic data collection by the krill fishing industry to improve the monitoring of krill abundance
      K. Reid and J. Arata
      3
      SG-ASAM-2019/02
      More Info
      Preliminary biomass estimation of Antarctic krill based on the swarm-based method for CCAMLR Division 58.4.1 in 2018/19 using data obtained by Japanese survey vessel Kaiyo-maru
      K. Abe, R. Matsukura, N. Yamamoto, K. Amakasu and H. Murase
      2.2
      SG-ASAM-2019/03 Rev. 1
      More Info
      Density estimation of Antarctic krill (Euphausia superba) around South Shetland Island and Elephant Island (Subarea 48.1) using two frequencies with 38 and 120 kHz
      S. Choi, S. Chung, I. Han, W. Oh, D. An and K. Lee
      2.1.2
      SG-ASAM-2019/04 Rev. 1
      More Info
      Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019
      X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu
      3
      SG-ASAM-2019/05
      More Info
      Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation
      X. Wang, X. Yu, J. Zhang and X. Zhao
      2, 2.1.3
      SG-ASAM-2019/06
      More Info
      Comparison of krill density estimated with swarm-based and dB-difference method using acoustic data collected by Chinese fishing vessel participating in the 2019 Area 48 survey
      X. Yu, X. Wang, J. Zhang and X. Zhao
      2.1.2
      SG-ASAM-2019/07
      More Info
      Biomass estimates of Antarctic krill based on survey conducted by the Chinese fishing vessel FV Fu Rong Hai during the 2019 Area 48 survey
      X. Wang, X. Yu, X. Zhao, J. Zhang, G. Fan, J. Zhu and Y. Ying
      2.1
      SG-ASAM-2019/08 Rev. 1
      More Info
      Biomass results from the International Synoptic Krill Survey in Area 48, 2019
      G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman, X. Wang, X. Zhao and M. Cox
      2.1
      SG-ASAM-2019/09
      More Info
      Supervised and unsupervised (RapidKrill) estimates of krill density from DY098
      A. Ariza, S. Fielding and R. Blackwell
      3.2
      SG-ASAM-2019/10
      More Info
      Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019
      G. Macaulay, G. Skaret, T. Knutsen and B. Krafft
      2.1.2, 2.1.3

      Agenda

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      1     Opening of the meeting

      The Convener will welcome participants, outline priorities for the meeting and provide an overview of local facilities including Secretariat support, Internet access and extracurricular activities.

      2     Large-scale krill surveys conducted in 2019
      2.1     Area 48 multinational survey
      SG-ASAM-2019/07 Biomass estimates of Antarctic krill based on survey conducted by the Chinese fishing vessel FV Fu Rong Hai during the 2019 Area 48 survey
      X. Wang, X. Yu, X. Zhao, J. Zhang, G. Fan, J. Zhu and Y. Ying
      SG-ASAM-2019/08 Rev. 1 Biomass results from the International Synoptic Krill Survey in Area 48, 2019
      G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman, X. Wang, X. Zhao and M. Cox
      2.1.1     Cross-checking of survey results among different participants
      2.1.3     Revised/refined analysis, including taking into account any issues raised during WG-EMM
      2.2.1     Review of preliminary survey results, including the use of broadband acoustic data
      3     Review of collection and analysis of krill acoustic data from fishing vessels

      SG-ASAM will review the methods for processing acoustic data collected on krill fishing vessels according to the swarm-based approach agreed at SG-ASAM-2017, including validations/potential improvements.

      3.1     Progress in data collection and delivery of acoustic data from fishing vessels
      3.2     Procedures for the collection and analysis of krill acoustic data collected on designated transects
      4     Other technical aspects relevant to the krill acoustic surveys and data analysis

      SG-ASAM will analyse data collected by krill fishing vessels, noting any methodological changes arising from Agenda item 2, with particular emphasis on data from the nominated transects and data collection during normal fishing operations.

      5     Other business

      SG-ASAM will review other relevant issues.

      6     Advice to the Scientific Committee
      7     Adoption of the report and close of the meeting.

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