Development and deployment of the accureate acousutic measurment system of Ganges river dolphins

• Project/Area Number: 24404023
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Naval and maritime engineering
• Research Institution: The University of Tokyo
• Principal Investigator: SUGIMATSU Harumi 東京大学, 生産技術研究所, 特任研究員 (90436577)
• Co-Investigator(Kenkyū-buntansha): URA Tamaki 九州工業大学, 社会ロボット具現化センター, 特別教授 (60111564) ; MIZUNO Katsunori 東京大学, 生産技術研究所, 特任助教 (70633494)
• Co-Investigator(Renkei-kenkyūsha): KOJIMA Junichi (株)KDDI研究所, 環境計測プロジェクト, プロジェクトリーダー (50416575) ; BAHL Rajendar インド工科大学デリー校, 電気電子工学科, 教授
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2012: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
• Keywords: Ganges river dolphin / River dolphin / Bio-sonar / PAM / Click / ICI / Bio-divesrity / 生物多様性 / 環境変動 / 淡水棲イルカ類 / ガンジスカワイルカ / エコーロケーション / Inter-Click Interval / センサス / ビイオソナー / PMS / クリック音 / CF解析 / データベース

Outline of Final Research Achievements

For understanding the echolocation strategy of the Ganges river dolphin to survive in the tough environment of the Ganges river system, the seasonal long-term monitoring was carried out at the stationary observatory using the developed long-term real-time acoustic measurement system. Based on the ICI (Inter-click Interval) based analysis of the data uploaded to the database on the server, we succeeded in automatic discrimination of dolphin's group with calf/calves from others. The portable acoustic measurement system that can detect the dolphin's direction in real-time was also developed for measurement of the dolphins migration behavior in longer distance. An accurate long-distance acoustic monitoring system of the dolphin was realized in combination of the both systems.

Research Products

• [Journal Article] Long duration real-time acoustic monitoring of Irrawaddy dolphins (Orcaella brevirostris) in Mahakam river in Borneo (2015)
  • Author(s): Harumi Sugimatsu・Junichi Kojima・Tamaki Ura・Sabro Tomuro・Rajendar Bahl
  • Journal Title: In Proc. UT15 Volume: CD-Rom
  • Acknowledgement Compliant
• [Journal Article] Development of a prototype underwater acostic and motion recorder for the Ganges river dolphin (2014)
  • Author(s): Junichi Kojima・Harumi Sugimatsu・Tamaki Ura・Rajendar Bahl・Sandeep Behera・Kenji Nagahashi
  • Journal Title: In Proc. Oceans 14 St. Johns Volume: CD-Rom
  • DOI: 10.1109/oceans.2014.7003248
  • Acknowledgement Compliant
• [Journal Article] Advanced Technique for automatiac detection and discrimination of click train with short interclick intervals from the clicks of Ganges river dolphins (Platanista gangetica gangetica) recorded by a passive acoustic monitoring sytem using hydrophone arrays (2014)
  • Author(s): Harumi Sugimatsu・Junichi Kojima・Tamaki Ura・Rajendar Bahl・Sandeep Behera・Vivek Sheel Sagar・Hari Singh ・Fupak De
  • Journal Title: Journal of Marine Technology Society Volume: Vol. 48, No. 3 Pages: 167-181
  • DOI: 10.4031/mtsj.48.3.15
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 小型ハイドロフォンアレイを用いた淡水棲イルカ類のリアルタイムセンサス手法の開発 (2014)
  • Author(s): 杉松治美・小島淳一・浦環・Rajendar Bahl・Sandeep Behera・ Hari Singh・Vivek Sheel Sagar
  • Journal Title: 海洋音響学会2014年度講演論文集 Volume: CD-Rom Pages: 1-4
  • Acknowledgement Compliant
• [Journal Article] Development of a handy mobile 4-hydrophone array system for in-situ census of the Ganges river dolphins (platanista gangetica) (2014)
  • Author(s): Harumi Sugimatsu・Tamaki Ura・Akira Asada・Kazunori Mizuno・Junichi Kojima・Rajendar Bahl・ Sandeep Behera・ Hari Singh・Vivek Sheel Sagar
  • Journal Title: In Proc. Oceans14 Taipei Volume: CD-Rom
  • DOI: 10.1109/oceans-taipei.2014.6964507
  • Acknowledgement Compliant
• [Journal Article] A multimodal detection model of dolphins to estimate abundance validated by field experiments (2013)
  • Author(s): Akamatsu T., Ura T., Sugimatsu H., Bahl R., Behera S., Panda S., Khan M., S. K. Kar, C. S, Kar, Kimura S., Sasaki-Yamamoto Y.
  • Journal Title: Journal of Acoustic Society America Volume: 134 Pages: 2418-2426
  • DOI: 10.1121/1.4816554
  • Peer Reviewed
• [Journal Article] Diel changes in the movement patterns of Ganges River dolphins monitored using stationed stereo acoustic data loggers (2013)
  • Author(s): Sasaki-Yamamoto, Y., T. Akamatsu, T. Ura, H. Sugimatsu, J. Kojima, R. Bahl, S. Beher, S. Kohshima:
  • Journal Title: Marine Mammal Science Volume: On line pulbication
  • Peer Reviewed
• [Journal Article] Long-term real-time monitoring system for Ganges river dolphins using two sets of 6-hydrophone array systems (2013)
  • Author(s): 小島淳一・杉松治美・浦環・Rajendar Bahl・Sandeep Behera・Hari Singh・Vivek Sheel Sagar:
  • Journal Title: Proc. Oceans 13 Bergen Volume: CD-Rom
  • DOI: 10.1109/oceans-bergen.2013.6608099
• [Journal Article] Automatic discrimination and detection of small calf Gange river dolphin (Platanista gangetica) from other age groups based on bio-sonar inter-click interval characteristics (2013)
  • Author(s): 杉松治美・小島淳一・浦環・Rajendar Bahl・Sandeep Behera・Hari Singh・Vivek Sheel Sagar
  • Journal Title: Proc. Oceans 13 San Diego Volume: CD-Rom
• [Journal Article] Long-term In-situ Monitoring of the Irrawaddy dolphins (Orcaella brevirostris) in Borneo (2013)
  • Author(s): 杉松治美・小島淳一・浦環・Rajendar Bahl・Sandeep Behera・Ajit Pattnaik・Sabro Tomuro・Danielle Kreb:
  • Journal Title: Proc. SYMPOL2013 Volume: CD-Rom Pages: 147-153
  • DOI: 10.1109/sympol.2013.6701925
• [Journal Article] Counting Animals Using vocalizations; a Case Study in Dolphins (2013)
  • Author(s): T. Akamatsu, T.Ura, H. Sugimatsu, R. Bahl, S, Behera, S, Panda, M. Khan, S. K. K8T, C. S. Kar, S. Kimura, Y. Sasaki-Yamamoto
  • Journal Title: Proc. UT13 Volume: (CD-Rom)
• [Journal Article] Development and deployment of the long-term in-situ observation system of the Irrawaddy dolphins (Orcaella brevirostris) in Borneo (2013)
  • Author(s): 杉松治美, 浦環, 小島淳一, 飛龍志津子, Rajendar Bahl, Sandeep Behera, Ajit Pattnaik, Idris Mandan, Sabro Tomuro, Danielle Kreb
  • Journal Title: Proc. UT13 Volume: (CD-Rom)
• [Journal Article] Study of acoustic characteristics of Ganges river dolphin calf using echolocation clicks recorded during long-term in-situ observation (2012)
  • Author(s): 杉松治美, 浦環, 水野勝紀, 浅田昭, 小島淳一, Rajendar Bahl, Sandeep Behera, Hari Singh, Vivek Sheel Sagar
  • Journal Title: Proc. Oceansl2 Hampton Roads Volume: (CD-Rom)
• [Journal Article] アジア域に棲息する小型歯クジラ類のリアルタイム音響観測ネットワークの構築 (2012)
  • Author(s): 杉松治美, 浦環, 小島淳一, 飛龍志津子, Rajendar Bahl, Sandeep Behera, A jit Pattnaik, Idris Mandan, Sabro Tomuro, Danielle Kreb
  • Journal Title: 第23回海洋工学シンポジウム講演論文集 Volume: (CD-Rom)
• [Journal Article] Acoustic observation of the Ganges river dolphin (Platanista gangetica) (2012)
  • Author(s): 杉松治美, 浦環, 浅田昭, 小島淳一, Rajendar Bahl, Sandeep Behera, Vivek Sheel Sagar, Hari Singh
  • Journal Title: Abstracts of ASL02012 Volume: (CD-Rom)
• [Journal Article] Asian Dolphin Observatories Real-time Networking-ADORN- (2012)
  • Author(s): 杉松治美, 浦環, 小島淳一, 飛龍志津子, Rajendar Bahl, Sandeep Behera, Ajit Pattnaik, Idris Mandan, Sabro Tomuro, Danielle Kreb
  • Journal Title: Proc. Oceans 2012 Yeosu Volume: (CD-Rom)
• [Presentation] Long duration real-time acoustic monitoring of Irrawaddy dolphins (Orcaella brevirostris) in Mahakam river in Borneo (2015)
  • Author(s): Harumi Sugimatsu
  • Organizer: UT15
  • Place of Presentation: Chennai, India
  • Year and Date: 2015-02-25
• [Presentation] Development of a prototype underwater acostic and motion recorder for the Ganges river dolphin (2014)
  • Author(s): Junichi Kojima
  • Organizer: Oceans 14 St. Johns
  • Place of Presentation: St. Johns, Canada
  • Year and Date: 2014-09-17
• [Presentation] 小型ハイドロフォンアレイを用いた淡水棲イルカ類のリアルタイムセンサス手法の開発 (2014)
  • Author(s): 杉松治美
  • Organizer: 海洋音響学会2014年度講演会
  • Place of Presentation: 東京
  • Year and Date: 2014-05-29
• [Presentation] Development of a handy mobile 4-hydrophone array system for in-situ census of the Ganges river dolphins (platanista gangetica) (2014)
  • Author(s): Harumi Sugimatsu
  • Organizer: Oceans14 Taipei
  • Place of Presentation: Taipei, Taiwan,
  • Year and Date: 2014-04-08
• [Presentation] Counting Animals Using Vocalizations; a Case Study in Dolphins (2013)
  • Author(s): T. Akamatsu
  • Organizer: UT13
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2013-03-06
• [Presentation] Development and deployment of the long-term in-situ observation system of the rrawaddy dolphins (Orcaella brevirostris) in Borneo (2013)
  • Author(s): H. Sugimatsu
  • Organizer: UT13
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2013-03-06
• [Presentation] Off-line Observation System Based on Acoustic Video Camera for Understanding Behavior of Underwater Life (2013)
  • Author(s): M. Mochizuki
  • Organizer: UT13
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2013-03-06
• [Presentation] Observation of aquatic biota in eutrophied pond using stationary acoustic monitoring system (2013)
  • Author(s): K, Mizuno
  • Organizer: UT13
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2013-03-06
• [Presentation] Acoustic cue detection model for abundance estimation of small odontocetes (2013)
  • Author(s): T. Akamatsu
  • Organizer: 6th International Workshop on Detection, Classification, Localization, & Density Estimation of Marine Mammals using Passive Acoustics
  • Place of Presentation: St. Andrews, UK
• [Presentation] Study of acoustic characteristics of Ganges river dolphin calf using echolocation clicks recorded during long-term in-situ observation (2012)
  • Author(s): H. Sugiroatsu
  • Organizer: Oceansl2 Hampton Roads
  • Place of Presentation: Virginia Beach, USA
  • Year and Date: 2012-10-17
• [Presentation] アジア域に棲息する小型歯クジラ類のリアルタイム音響観測ネットワークの構築 (2012)
  • Author(s): 杉松治美
  • Organizer: 第23回海洋工学シンポジウム
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2012-08-03
• [Presentation] Acoustic observation of the Ganges river dolphin (Platanista gangetica) (2012)
  • Author(s): 杉松治美
  • Organizer: ASL02012
  • Place of Presentation: Otsu, Japan
  • Year and Date: 2012-07-11
• [Presentation] Asian Dolphin Observatories Real-time Networking-ADORN- (2012)
  • Author(s): H. Sugimatsu
  • Organizer: Oceans 2012 Yeosu
  • Place of Presentation: Yeosu, South Korea,
  • Year and Date: 2012-05-23
• [Presentation] International Collaborative Project for Conservation of the Irrawaddy dolphins (Orcaella brevirostris) in the Middle Mahakam River of Central Kutai
  • Author(s): 杉松 治美
  • Organizer: Workshop at Department of Fisheries
  • Place of Presentation: Kutai Kartanegara Regency, Indonesia
  • Invited
• [Presentation] Long-term real-time monitoring system for Ganges river dolphins using two sets of 6-hydrophone array systems
  • Author(s): 小島淳一
  • Organizer: Oceans 13 Bergen
  • Place of Presentation: Bergen, Norway
• [Presentation] Automatic discrimination and detection of small calf Gange river dolphin (Platanista gangetica) from other age groups based on bio-sonar inter-click interval characteristics
  • Author(s): 杉松治美
  • Organizer: Oceans 13 San Diego
  • Place of Presentation: San Diego, USA,
• [Presentation] Long-term In-situ Monitoring of the Irrawaddy dolphins (Orcaella brevirostris) in Borneo
  • Author(s): 杉松治美
  • Organizer: SYMPOL2013
  • Place of Presentation: Kochi, India
• [Presentation] Acoustic feature of the click trains of Ganges river dolphin (Platanista gangetica) calf revealed by long-term in-situ monitoring
  • Author(s): 杉松治美
  • Organizer: SMM13
  • Place of Presentation: Dunedin, New Zealand
• [Presentation] Underwater behavioral trends of the Irrawaddy dolphins (Orcaella brevirostris) in the middle Mahakam River in Borneo observed by long-term in-situ passive acoustic monitoring
  • Author(s): 小島淳一
  • Organizer: SMM13
  • Place of Presentation: Dunedin, New Zealand
• [Remarks] Dolphin Data analysis
  • URL: http://dolphin1.kddilabs.jp/graph/dolphingraphics/
• [Remarks] 伊豆三津シーパラダイスのイルカ達
  • URL: http://dolphin1.kddilabs.jp/graph/dolphingraphics/
• [Remarks] Dolphin Data analysis
  • URL: http://dolphin1.kddilabs.jp/graph/dolphingraphics/
• [Remarks]
  • URL: http://dolphinl.kddilabs.jp/graph/dolphingraphics/