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2013 Fiscal Year Final Research Report

Development of acoustic technique for biomass monitoring of seaweed bed, sea grass bed and kelp bed

Research Project

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Project/Area Number 23380108
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionHokkaido University

Principal Investigator

MIYASHITA KAZUSHI  北海道大学, 北方生物圏フィールド科学センター, 教授 (70301877)

Co-Investigator(Kenkyū-buntansha) FUJIMORI Yasuzumi  北海道大学, 水産科学研究科(研究院), 教授 (40261341)
KIMURA Nobuo  北海道大学, 水産科学研究科(研究院), 教授 (50186326)
Project Period (FY) 2011-04-01 – 2014-03-31
Keywords藻場 / 種類判別 / 音響学的手法 / 音響反射強度 / 離散ウェーブレット解析
Research Abstract

In coastal area, Sargassum spp., Zostera spp. and Laminaria spp. forms dense vegetation community, which are called as seaweed bed, seagrass bed and kelp bed. In this study, we estimated the characteristics and the wave shapes of acoustic intensity of these beds, and then we developed the discriminate method of these beds by acoustic technique using the characteristics. In the result, it was suggested that the discrimination of the beds is possible using a two-stage approach. The first stage is the discrimination of the area backscattering (Seaweed bed; -33.3~-57.0 dB, Seagrass bed; -39.2~-66.1 dB, Kelp bed; -59.8~-74.3 dB). In the second stage is the discrimination of the wavelet coefficient of Lv. 4 (Seagrass bed; 12000-39000, Kelp bed; 3000-12000). This method may allow better biomass estimation of these beds by acoustic technique.

  • Research Products

    (10 results)

All 2013 2012

All Presentation (10 results)

  • [Presentation] Spatiotemporal analysis of kelp forest distribution characteristics in sea desertification areas using acoustic and direct sensing methods2013

    • Author(s)
      Huamei Shao, Yuka Morita, Shiori Sonoki, Kenji Minami, Norishige Yotsukura, Masahiro Nakaoka, and Kazushi Miyashita
    • Organizer
      PICES 2013 Annual Meeting
    • Place of Presentation
      Nanaimo CANADA
    • Year and Date
      2013-10-11
  • [Presentation] 音響計測手法を用いたアマモ場分布の季節変動の定量化2013

    • Author(s)
      園木詩織, 盛田祐加, 堀 正和, 南憲吏, 小路淳, 宮下和士
    • Organizer
      平成25年度日本水産学会秋季大会
    • Place of Presentation
      三重大学(三重)
    • Year and Date
      2013-09-19
  • [Presentation] 若狭湾における数種の藻場の音響反射特性2013

    • Author(s)
      石田太朗, 安間洋樹, 南憲吏, 道家章生, 西垣友和, 宮下和士, 藤森康澄
    • Organizer
      平成25年度日本水産学会秋季大会
    • Place of Presentation
      三重大学(三重)
    • Year and Date
      2013-09-19
  • [Presentation] 音響手法を用いた能取湖におけるアマモ場の現存量推定に関する研究2013

    • Author(s)
      佐藤世梨華, 盛田祐加, 邵花梅, 園木詩織, 遊佐貴士, 千葉晋, 南憲吏, 宮下和士
    • Organizer
      平成24年度音響資源調査研究情報交換会
    • Place of Presentation
      第二水産ビル(札幌)
    • Year and Date
      2013-03-05
  • [Presentation] 音響計測手法を用いたアマモ場の季節変動の定量化と基盤サービスの試算2013

    • Author(s)
      園木詩織, 小路淳, 宮下和士
    • Organizer
      平成24年度音響資源調査研究情報交換会
    • Place of Presentation
      第二水産ビル(札幌)
    • Year and Date
      2013-03-05
  • [Presentation] Spatial estimation of the kelp forest (Laminaria spp.) distributions in coastal waters of Aomori, Japan, using acoustic method2012

    • Author(s)
      Huamei Shao, Yuka Morita, Shiori Sonoki, Kenji Minami and Kazushi Miyashita
    • Organizer
      The Sixth Annual Meeting of Asian Fisheries Acoustics Society
    • Place of Presentation
      Busan KOREA
    • Year and Date
      2012-11-27
  • [Presentation] Monitoring seasonal variations in a seagrass bed by an acoustic method2012

    • Author(s)
      Shiori Sonoki, Yuka Morita, Jun Shoji and Kazushi Miyashita
    • Organizer
      The Sixth Annual Meeting of Asian Fisheries Acoustics Society
    • Place of Presentation
      Busan KOREA
    • Year and Date
      2012-11-27
  • [Presentation] Monitoring seasonal variations in a seagrass bed by an acoustic method2012

    • Author(s)
      Shiori Sonoki, Yuka Morita, Jun Shoji and Kazushi Miyashita
    • Organizer
      PICES-2014 Annual Meeting
    • Place of Presentation
      Hiroshima JAPAN
    • Year and Date
      2012-10-19
  • [Presentation] 小型計量魚探の開発④コンブ林の磯焼けの動態把握に向けて2012

    • Author(s)
      邵花梅, 盛田祐加, 園木詩織, 藤川義一, 四ツ倉典滋, 仲岡雅裕, 宮下和士
    • Organizer
      平成24年度日本水産学会秋季大会
    • Place of Presentation
      水産大学校(下関)
    • Year and Date
      2012-09-15
  • [Presentation] 小型計量魚探の開発③藻場の生態系サービスの定量化2012

    • Author(s)
      園木詩織, 盛田祐加, 邵花梅, 小路淳, 宮下和士
    • Organizer
      平成24年度日本水産学会秋季大会
    • Place of Presentation
      水産大学校(下関)
    • Year and Date
      2012-09-15

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Published: 2015-06-25  

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