Acoustic survey of baiji in their historic habitat of the Yangtze River

• Project/Area Number: 19405005
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Resource conservation science
• Research Institution: Fisheries Research Agency
• Principal Investigator: AKAMATSU Tomonari Fisheries Research Agency, 漁業生産・情報工学部, 生物音響技術研究チーム長 (00344333)
• Project Period (FY): 2007 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000); Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2008: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2007: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
• Keywords: 稀少動物の保全 / 絶滅危惧種 / イルカ / スナメリ / 個体数推定 / 受動的音響手 / 生物ソナー / エコーロケーション / 希少動物の保全 / 受動的音響手法 / エコロケーション

Research Abstract

Distribution of endangered freshwater cetaceans was revealed by cutting-edge underwater acoustic technology. Macro scale distribution of cetaceans in the entire Yangtze River and micro scale distribution in a high density area were provided. Historic habitat of baiji and Yangtze finless porpoises were surveyed from Yichang, nearby three gorges dam, to Shanghai, using towing type underwater microphone. Results suggested extinction of baiji and quick reduction of finless porpoises. Log-term stationary acoustic observation had been conducted at the hot spot, high density waters, in the middle of the Yangtze River. Using the outcomes, a model to convert acoustic detection rate to real density of existing number of animals was proposed. Extensive towing acoustic survey was conducted in the same section and provided detail map of distribution of porpoises. In the last year, periodical automatic surveys using a cargo ship as a platform of the acoustic device were conducted from Wuhan to Shanghai, 1100km stretch of the middle and lower reached of the Yanzgter River. This method is cost effective and useful for range-wide monitoring of small odontocetes, which has been applied worldwide in these days.

Research Products

• [Journal Article] Widespread passive acoustic detection of Yangtze finless porpoise using miniature stereo acoustic data-loggers : A review. (2010)
  • Author(s): Li S., Akamatsu T., Dong L., Wang K., Wang D., Kimura S.
  • Journal Title: J.Acoust.Soc.Am. Vol.128 Pages: 1476-1482
  • Peer Reviewed
• [Journal Article] Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection. (2010)
  • Author(s): Kimura S., Akamatsu T., Li S. Dong S., Dong L., Wang K., Wang D., Arai N.
  • Journal Title: j.Acoust.Soc.Am. Vol.128 Pages: 1435-1445
  • Peer Reviewed
• [Journal Article] Seasonal and diurnal presence of finless porpoises at a corridor to the ocean from their habitat. (2010)
  • Author(s): Akamatsu T., Nakamura, K., Kawabe, R., Furukawa, S., Murata,H., Kawakubo, A., Komaba, M.
  • Journal Title: Marine Biology VOl.157 Pages: 1879-1887
  • Peer Reviewed
• [Journal Article] Scanning sonar of rolling porpoises during prey capture dives. (2010)
  • Author(s): Akamatsu T., Wang D., Wang K, Li S., Dong S.
  • Journal Title: j.Exp.Biol Vol.213 Pages: 146-152
  • NAID: 40017142776
  • Peer Reviewed
• [Journal Article] Detection of yangttze finless porpoises in the Poyang lake mouth area via passive acoustic data-loggers. (2010)
  • Author(s): Li, S., Dong, S., Kimura, S., Akamatsu, T., Wang, K., Wang, D
  • Journal Title: Biology, Evolution, and Conservation of River Dolphins within South America and Asia. Pages: 343-355
  • Peer Reviewed
• [Journal Article] Widespread passive acoustic detection of Yangtze finless porpoise using miniature stereo acoustic data-loggers : A review (2010)
  • Author(s): Li, S., Akamatsu, T., Dong, L., Wang, K., Wang, D., Kimura, S.
  • Journal Title: J.Acoust.Soc.Am Volume: 128 Pages: 1476-1482
  • Peer Reviewed
• [Journal Article] Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection (2010)
  • Author(s): Kimura, S., Akamatsu, T., Li, S, Dong, S., Dong, L., Wang, K., Wang, D., Arai, N.
  • Journal Title: J.Acoust.Soc.Am. Volume: 128 Pages: 1435-1445
  • Peer Reviewed
• [Journal Article] Seasonal and diurnal presence of finless porpoises at a corridor to the ocean from their habitat (2010)
  • Author(s): Akamatsu, T., Nakamura, K., Kawabe, R., Furukawa, S., Murata, H., Kawakubo, A., Komaba, M
  • Journal Title: Marine Biology Volume: 157 Pages: 1879-1887
  • Peer Reviewed
• [Journal Article] Scanning sonar of rolling porpoises during prey capture dives (2010)
  • Author(s): Akamatsu, T. Wang, D. Wang, K, Li, S., Dong, S.
  • Journal Title: J.Exp.Biol. 213 Pages: 146-152
  • NAID: 40017142776
• [Journal Article] Scanning sonar of rolling porpoises during prey capture dives (2010)
  • Author(s): Akamatsu, T.Wang, D.Wang, K, Li, S., Dong, S.
  • Journal Title: J.Exp.Biol. 213 Pages: 146-152
  • NAID: 40017142776
  • Peer Reviewed
• [Journal Article] Detection probability of vocalizing dugongs during playback of conspecific call. (2009)
  • Author(s): Ichikawa, K., Akamatsu T., Shinke, T., Sasamori, K., Miyauchi, Y., Abe, Y., Adulyanukosol, K., Arai, N.
  • Journal Title: j.Acoust.Soc.Am Vol.126 Pages: 1954-1959
  • Peer Reviewed
• [Journal Article] Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers. (2009)
  • Author(s): 李松海, 赤松友成, 王丁, 王克雄
  • Journal Title: j.Acoust. Soc. Am Vol.126 Pages: 468-475
  • Peer Reviewed
• [Journal Article] Comparison of stationary acoustic monitoring and visual observation of finless porpoises (Neophocaena phocaenoides). (2009)
  • Author(s): Kimura S., Akamatsu T., Wang K., Wang D., Li S., Dong, S., Arai, N.
  • Journal Title: j.Acoust.Soc.Am Vol.125 Pages: 547-553
  • Peer Reviewed
• [Journal Article] Comparison of stationary acoustic monitoring and visual observation of finless porpoises (2009)
  • Author(s): Kimura, S., Akamatsu, T., Wang, K., Wang, D., Li, S., Dong, S., Arai, N.
  • Journal Title: J.Acoust.Soc.Am. 125 Pages: 547-553
• [Journal Article] Detection probability of vocalizing dugongs during playback of conspecific call (2009)
  • Author(s): Ichikawa, K., Akamatsu, T., Shinke, T., Sasamori, K., Miyauchi, Y., Abe, Y., Adulyanukosol, K., Arai, N.
  • Journal Title: J.Acoust.Soc.Am. 126 Pages: 1954-1959
  • Peer Reviewed
• [Journal Article] Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers (2009)
  • Author(s): Li, S., Akamatsu, T., Wang, D., Wang, K.
  • Journal Title: J.Acoust.Soc.Am. 126 Pages: 468-475
  • Peer Reviewed
• [Journal Article] Comparison of stationary acoustic monitoring and visual observation of finless porpoises (Neophocaena phocaenoides) (2009)
  • Author(s): Kimura, S., Akamatsu, T., Wang, K., Wang, D., Li, S., Dong, S., Arai, N.
  • Journal Title: J. Acoust. Soc. Am. 125 Pages: 547-553
  • Peer Reviewed
• [Journal Article] Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River China (2008)
  • Author(s): Zhao, X., Barlow, J., Taylor, B., Pitman, R., Wang K., Wei, Z., Stewart, B., Turvey, S., Akamatsu T., Reeves, R., Wang D.
  • Journal Title: Biological Conservation Vol.141 Pages: 3006-3018
  • Peer Reviewed
• [Journal Article] Simultaneous production of low-and high-frequency sounds in neonatal finless porpoises. (2008)
  • Author(s): Li S., Wang K., Dong S., Wang D., Akamatsu T.
  • Journal Title: j.Acoust.Soc.Am Vol.124、No2 Pages: 716-718
  • Peer Reviewed
• [Journal Article] Evidence of nighttime movement of finless porpoises through Kanmon Strait monitored using a stationary acoustic recording device (2008)
  • Author(s): Akamatsu,T., Nakazawa, I., Tsuchiyama, T., Kimura, N
  • Journal Title: Fisheries Science Vol.74 Pages: 970-976
  • NAID: 10021872749
  • Peer Reviewed
• [Journal Article] Estimation of the detection probability for Yangtze finless porpoises(Neophocaena phocaenoides asiaeorientalis) with a passive acoustic method (2008)
  • Author(s): Akamatsu T., Wang D., Wang K., Li S., Dong, S.,Zhao, X.,Barlow, J., Stewart, B.S.,Richlen, M
  • Journal Title: j.Acoust. Soc. Am Vol.123、No.6 Pages: 4403-4411
  • NAID: 40016121736
  • Peer Reviewed
• [Journal Article] INDIRECT EVIDENCE OF BOAT AVOIDANCEBEHAVIOR OF YANGTZE FINLESS PORPOISE (2008)
  • Author(s): Li S., Akamatsu T., Wang D., Wang K., Dong, S., Zhao, X., Wei, Z., Zhang, Z., Taylor, B., Barrett, L.A., Turvey, S.T., Reeves, R.R., Stewart, B.S., Richlen, M., Brandon, J.R.
  • Journal Title: Bioacoustics The International Journal of Animal Sound and its Recording Vol.17 Pages: 174-176
  • Peer Reviewed
• [Journal Article] Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China (2008)
  • Author(s): Zhao, X., Barlow, J., Taylor, B., Pitman, R., Wang, K., Wei, Z., Stewart, B., Turvey, S., Akamatsu, T., Reeves, R., Wang, D.
  • Journal Title: Biological Conservation 141 Pages: 3006-3018
  • Peer Reviewed
• [Journal Article] Simultaneous production of low-and high-frequency sounds in neonatal finless porpoises (2008)
  • Author(s): Li, S., Wang, K., Dong, S., Wang, D., Akamatsu, T.
  • Journal Title: J. Acoust. Soc. Am. 124(2) Pages: 716-718
  • Peer Reviewed
• [Journal Article] Evidence of nighttime movement of finless porpoises through Kanmon Strait monitored using a stationary acoustic recording device (2008)
  • Author(s): Akamatsu, T., Nakazawa, I., Tsuchiyama, T., Kimura, N.
  • Journal Title: Fisheries Science 74 Pages: 970-976
  • NAID: 10021872749
  • Peer Reviewed
• [Journal Article] Estimation of the detection probability for Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis) with a passive acoustic method (2008)
  • Author(s): Akamatsu, T., Wang, D., Wang, K., Li, S., Dong, S., Zhao, X., Barlow, J., Stewart, B. S., Richlen, M.
  • Journal Title: J. Acoust. Soc. Am. 123(6) Pages: 4403-4411
  • NAID: 40016121736
  • Peer Reviewed
• [Journal Article] INDIRECT EVIDENCE OF BOAT AVOIDANCEBEHAVIOR OF YAN GTZE FINLESS PORPOISES (2008)
  • Author(s): Li, S. Akamatsu, T., Wang, D., Wang, K., Dong, S., Zhao, X., Wei, Z., Zhang, Z., Taylor, B., Barrett, L. A., Turvey, S. T., Reeves, R. R., Stewart, B. S., Richlen, M., Brandon, J. R.
  • Journal Title: Bioacoustics The International Journal of Animal Sound and its Recording 17 Pages: 174-176
  • Peer Reviewed
• [Journal Article] (2008)
  • Author(s): Akamatsu,T
  • Journal Title: Cetacean bioacoustics with emphasis on recording and monitoring, In : Handbook of Signal Processing in Acoustics(Eds : David Havelock, Sonoko Kuwano, Michael Vorlander, Springer, New York, ISBN 978-0387776989) Pages: 1897-1907
• [Journal Article] Echolocation click sounds from wild inshore finless porpoise (Neophocaena phocaenoides sunameri)with comparisons to the sonar of riverine N. p. asiaeorientalis (2007)
  • Author(s): Li,S., 王丁, Wang,K., Akamatsu T., Ma., Z., Han, J.
  • Journal Title: j.Acoust. Soc. Am Vol.121、No.6 Pages: 3938-3946
  • Peer Reviewed
• [Journal Article] First human-caused extinction of a cetacean species? (2007)
  • Author(s): Turvey, S.T., Pitman, R.L. Taylor, B.L., Barlow,J., Akamatsu,T., Barret t,L.A., Zhao,X., Reeves,R.R., Stewar t, B.S., Wang K., Wei,Z., Zhang, X., Pusser,L.T., Richlen,M., Brandon, J.R., Wang,D.
  • Journal Title: Biology Letters Vol.3、No.5 Pages: 537-540
  • Peer Reviewed
• [Journal Article] 音響観測門によるスナメリの地域的行動観測 (2007)
  • Author(s): 木村里子、赤松友成、王丁、王克雄、李松海
  • Journal Title: 海洋音響学会誌 Vol.34、No.4 Pages: 260-265
• [Journal Article] First human-caused extinction of a cetacean species? (2007)
  • Author(s): Turvey, S.T., Pitman, R.L. Taylor, B.L., Barlow, J., Akamatsu, T., Barrett, L.A., Zhao, X., Reeves, R.R., Stewart, B.S., Wang, K., Wei,Z., Zhang, X., Pusser, L.T., Richlen, M., Brandon, J.R., and Wang,D.
  • Journal Title: Biology Letters 3 Pages: 537-540
  • Peer Reviewed
• [Journal Article] Indirect evidence of boat avoidance behavior of Yangtze finless porpoises (2007)
  • Author(s): Li, S. Akamatsu, T., Wang, D., et. al.
  • Journal Title: Bioacoustics The International Journal of Animal Sound and its Recording 17 Pages: 174-176
  • Peer Reviewed
• [Journal Article] The ontogeny of echolocation in a Yangtze finless porpoise(Neophocaen a phocaenoides asiaeorientalis) (2007)
  • Author(s): Li,S., Wang, D., Wang,K., Xiao,J., Akamatsu, T.
  • Journal Title: J. Acoust. Soc. Am. 122 Pages: 715-718
  • Peer Reviewed
• [Journal Article] Comparison of echolocation behaviour between coastal and riverine porpoises (2007)
  • Author(s): Akamatsu, T., Teilmann, J., Miller, L.A., Tougaard, J., Dietz, R., Wang, D., Wang, K., Siebert, U., and Naito, Y.
  • Journal Title: Deep-Sea Research II 54 Pages: 290-297
  • Peer Reviewed
• [Journal Article] Echolocation click sounds from wild inshore finless porpoise(Neophocaena phocaenoides sunameri)with comparisons to the sonar of riverine N. p. asiaeorientalis (2007)
  • Author(s): Li,S., Wang, D., Wang,K., Akamatsu, T., Ma., Z., and Han, J.
  • Journal Title: J. Acoust. Soc. Am. 121 Pages: 3938-3946
  • Peer Reviewed
• [Journal Article] 音響観測門によるスナメリの地域的行動観測 (2007)
  • Author(s): 木村里子,赤松友成,王丁,王克雄,李松海
  • Journal Title: 海洋音響学会誌 34 Pages: 260-265
  • Peer Reviewed
• [Presentation] 揚子江におけるスナメリの分布変化 (2011)
  • Author(s): 木村里子
  • Organizer: 平成23年度日本水産学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンパス
• [Presentation] スナメリの音響・目視発見確率の予備的推定 (2011)
  • Author(s): 白木原国雄
  • Organizer: 平成23年度日本水産学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンバス
• [Presentation] Long-term passive acoustic monitoring of the moving patterns of cetaceans in the istanbul strait. (2011)
  • Author(s): Dede, A.
  • Organizer: The 25th Annual Conference of the European Cetacean Society.
  • Place of Presentation: Cadiz Spain
• [Presentation] Scanning sonar of rolling porpoises during prey capture dives. (2011)
  • Author(s): Akamatsu, T.
  • Organizer: Fourth Internationl Science Symposium on Bio-logging 2011.
  • Place of Presentation: Hobart, Australia.
• [Presentation] Seasonal behavior, and their influence on tidal behavior of Chinese white dolphins (Sousa chinensis) at Xinhuway River Estuary (2011)
  • Author(s): Lin, T. H.
  • Organizer: Symposium on Animal Behavior,Ecology and Environmental Education. Taiwan
  • Place of Presentation: Tainan, Taiwan
• [Presentation] スナメリの音響・目視発見確率の予備的推定@poster (2011)
  • Author(s): 白木原国雄, 赤松友成, 駒場昌幸, 出来真由美, 大谷拓也, 野添裕一, 川久保昌博, 楠本未来, 天野雅男, 北門利英, 白木原美紀, 平松一彦
  • Organizer: 平成23年度日本水産学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンパス
• [Presentation] Long-term passive acoustic monitoring of the moving patterns of cetaceans in the istanbul strait. (2011)
  • Author(s): Dede, A., Ozturk, A.A., Akamatsu, T., Tonay, A.M., Ozturk, B.
  • Organizer: The 25th Annual Conference of the European Cetacean Society
  • Place of Presentation: Cadiz Spain
• [Presentation] Scanning sonar of rolling porpoises during prey capture dives (2011)
  • Author(s): Akamatsu, T, Wang D, Wang K, Li S., Dong S.
  • Organizer: Fourth International Science Symposium on Bio-logging 2011
  • Place of Presentation: Hobart, Australia
• [Presentation] Seasonal behavior, and their influence on tidal behavior of Chinese white dolphins (Sousa chinensis) at Xinhuway River Estuary (2011)
  • Author(s): Lin, T.H., Akamatsu, T., Chou, L.S.
  • Organizer: Symposium on Animal Behavior, Ecology and Environmental Education.Taiwan
  • Place of Presentation: Tainan, Taiwan
• [Presentation] A review of passive acoustic monitoring methods for the detection of cetaceans in southeastern Asia region. (2010)
  • Author(s): Akamatsu, T.
  • Organizer: The Fourth Annual Meeting of Asian Fisheries Acoustics Society, AFAS 2010.
  • Place of Presentation: Eastin Hotel, Penang, Malaysia.
• [Presentation] Seasonal and diurnal presence of finless porpoises at the corridor to the ocean from a semi-closed bay habitat. (2010)
  • Author(s): Akamatsu,T.
  • Organizer: 159th Meeting of the Acoustical Society of America.
  • Place of Presentation: Baltimore, Maryland.
• [Presentation] A review of passive acoustic monitoring methods for the detection of cetaceans in southeastern Asia region (2010)
  • Author(s): Akamatsu, T., Kimura, S., Li, S., Dong, L., Wang, K., Wang, D.
  • Organizer: The Fourth Annual Meeting of Asian Fisheries Acoustics Society, AFAS 2010
  • Place of Presentation: Eastin Hotel, Penang, Malaysia.
• [Presentation] Seasonal and diurnal presence of finless porpoises at the corridor to the ocean from a semi-closed bay habitat. (2010)
  • Author(s): Akamatsu, T., Nakamura, K., Kawabe, R., Furukawa, S., Murata, H., Kawakubo, A., Komaba, M.
  • Organizer: 159th Meeting of the Acoustical Society of America
  • Place of Presentation: Baltimore, Maryland
• [Presentation] 定点音響観測手法を用いたスナメリの密度推定 (2010)
  • Author(s): 木村里子, 赤松友成, Songhai Li, Shouyue Dong, Lijun Dong, Kexiong Wang, Ding Wang, 荒井修亮
  • Organizer: 平成22年度日本水産学会春季大会
  • Place of Presentation: 日本大学生物資源科学部
• [Presentation] 曳航音響観察手法を用いたスナメリの分布調査 (2010)
  • Author(s): 赤松友成, Lijun Dong, Songhai Li, Kexiong Wang, Ding Wang
  • Organizer: 平成22年度日本水産学会春季大会
  • Place of Presentation: 日本大学生物資源科学部
• [Presentation] Diurnal behavior pattern of Ganges river dolphins (Platanista gangetica gangetica) observed by stationed stereo acoustic data loggers. (2009)
  • Author(s): Yamamoto Y.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference .Quebec
  • Place of Presentation: Quebec City.QC.Canada.
• [Presentation] Vaquita Expedition 2008 : science for immediate management needs. (2009)
  • Author(s): Taylor B.L.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada.
• [Presentation] Presence pattern of Yangtze finless porpoises at a geographical bottleneck area of the Yangtze River system. (2009)
  • Author(s): 木村里子
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec
  • Place of Presentation: Quebec City.C.Canada.
• [Presentation] Scanning sonar of rolling porpoises during prey capture. Invited (2009)
  • Author(s): Akamatsu, T.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto. Japan.
• [Presentation] Scanning sonar of rolling porpoises during prey capture (2009)
  • Author(s): Akamatsu, T., Wang, D., Wang, K., Li, S., Dong, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ. Kyoto. Japan. invited
• [Presentation] Passive acoustical counting of odontocetes using towed and stationed platforms (2009)
  • Author(s): Akamatsu, T. Wang, D., Wang, K., Li, S., Dong, S., Kimura, S.
  • Organizer: the 157th Meeting of the Acoustical Society of America
  • Place of Presentation: Portland, Oregon, USA
• [Presentation] Diurnal behavior pattern of Ganges river dolphins(Platanista gangetica gangetica)observed by stationed stereo acoustic data loggers (2009)
  • Author(s): Yamamoto Y., Akamatsu T., Ura T., Sugimatsu H., Kojima J., Bahl R., Behera S., Kohshima S.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada
• [Presentation] Vaquita Expedition 2008 : science for immediate management needs (2009)
  • Author(s): Taylor B.L., Jaramillo-Legoretta A., Cardenas-Hinojosa G., Gerrodette T., Barlow J., Rankin S., Tregenza N., Akamatsu T., Gordon J., Swift R., Rojas-Bracho L.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada
• [Presentation] Presence pattern of Yangtze finless porpoises at a geographical bottleneck area of the Yangtze River system.@poster (2009)
  • Author(s): Kimura S., Akamatsu T., Dong S., Li S., Wang K., Wang D., Arai N.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada
• [Presentation] Vocal hot spots of dugongs(Dugong dugon)monitored using simultaneous passive acoustic methods and visual observations in Thai waters.@poster (2009)
  • Author(s): Ichikawa K., Akamatsu T., Shinke T., Arai N., Sasamori K., Miyauchi Y., Abe Y., Adulyanukosol K.
  • Organizer: The Society for Marine Mammalogy 18^<th> Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada
• [Presentation] Variation and function of the sounds produced by captive Commerson's dolphins(Cephalorhynchus commersonii).@poster (2009)
  • Author(s): Yoshida Y., Morisaka T., Sakai M., Iwasaki M., Wakabayashi I., Seko A., Kasamatsu M., Fukuzawa H., Akamatsu T., Kohshima S.
  • Organizer: The Society for Marine Mammalogy 18^<th> Biennial Conference-Quebec
  • Place of Presentation: Quebec City.QC.Canada
• [Presentation] Development of high frequency signals in neonatal finless porpoises.@poster (2009)
  • Author(s): Li, S., Wang, D., Wang, K., Akamatsu, T.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Behavioral monitoring of Ganges river dolphin by using stationed stereo acoustic data loggers.@poster (2009)
  • Author(s): Yamamoto, Y., Akamatsu, T., Ura, T., Sugimatsu, H., Kojima, J., Bahl, R., Kohshima, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Long term monitoring of migrating finless porpoise using biosonar signals as a cue of attendance.@poster (2009)
  • Author(s): Kimura, S., Akamatsu, T., Dong, S., Li, S., Wang, K., Wang, D., Arai, N.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Pulse sounds of captive commerson's dolphin.@poster (2009)
  • Author(s): Yoshida, Y., Morisaka, T., Sakai, M., Iwasaki, M., Wakabayashi, I., Seko, A., Kasamastu, M., Akamastu, T., Kohshima, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Echolocation signals of Heaviside's dolphins(Cephalorhynchus heavisidii).@poster (2009)
  • Author(s): Morisaka, T., Karczmarski, L., Akamatsu, T., Sakai, M., Thornton, M., Dawson, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Scanning sonar of rolling porpoises during prey capture.invited (2009)
  • Author(s): Akamatsu, T., Wang, D., Wang, K., Li, S., Dong, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Range-wide passive acoustic survey of Yangtze finless porpoise using stereo acoustic data-loggers.invited (2009)
  • Author(s): Wang, D., Li, S., Wang, K., Akamatsu, T.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto.Japan
• [Presentation] Passive acoustical counting of odontocetes using towed and stationed Platforms.invited (2009)
  • Author(s): Akamatsu, T.Wang, D., Wang, K., Li, S., Dong, S., Kimura, S.
  • Organizer: the 157th Meeting of the Acoustical Society of America
  • Place of Presentation: Portland, Oregon, USA
• [Presentation] Diurnal and seasonal presence of porpoises at a narrow strait monitored using a stationary acoustic recording device. @poster (2009)
  • Author(s): Akamatsu, T., Kawakubo, A., Komaba, M., Nakamura, K., Kawabe, R., Furukawa, S., Murata, H.
  • Organizer: 23rd Conference of the European Cetacean Society
  • Place of Presentation: Istanbul, Turkey
• [Presentation] (2009),音響的手法を用いたガンジスカワイルカの行動解析 (2009)
  • Author(s): 山本友紀子, 赤松友成, 浦環, 杉松治美, 小島淳一, R. Bahl, S. Behera, 幸島司郎
  • Organizer: 勇魚会シンポジウム
  • Place of Presentation: 東京海洋大学,楽水会館
• [Presentation] 揚子江全域におけるバイジーとスナメリの音響調査 (2008)
  • Author(s): 赤松友成, ら
  • Organizer: 日本水産学会春期大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2008-03-28
• [Presentation] イルカの音響探索能力と行動決定 (2008)
  • Author(s): 赤松友成
  • Organizer: 日本動物学会関東支部第60回大会招待講演
  • Place of Presentation: 東京都目黒区
  • Year and Date: 2008-03-22
• [Presentation] Detection performance of passive acoustic methodology for porpoises (2008)
  • Author(s): Akamatsu, T., Wang, D., Wang, K., Li, S., Dong, S., Zhao, X., Barlow, J., Stewart, B. S., Richlen, M.
  • Organizer: International Symposium on Ecosystem Approach with Fisheries Acoustics and Complementary Technologies (SEAFACTS)
  • Place of Presentation: Bergen, Norway
• [Presentation] The clicks sound and these functions of captive Commerson's dolphins (Cephalorhynchus commersonii), @poster (2008)
  • Author(s): Yoshida, Y., Morisaka, T., Sakai, M., Iwasaki, M., Wakabayashi, I., Seko, A., Kasamatu, M., Akamatsu, T., Kohshima, S.
  • Organizer: The International Symposium on Comparative Cognitive Science 2008 Primate origins of human mind
  • Place of Presentation: Kyoto, Japan
• [Presentation] (2008), Behavioral pattern analysis of Ganges river dolphin (Platanista gangetica gangetica) by using stationed acoustic data loggerss, @poster (2008)
  • Author(s): Yamamoto, Y., Akamatsu, T., Ura, T., Sugimatsu, H., Kojima, J., Bahl R., Behera S. K., Pattnaik A., Panda S., Khan M., Kar S., Kar C., Kohshima, S.
  • Organizer: The International Symposium on Comparative Cognitive Science 2008 Primate origins of human mind
  • Place of Presentation: Kyoto, Japan
• [Presentation] 音響的手法によるガンジスカワイルカの行動解析 (2008)
  • Author(s): 山本友紀子, 赤松友成, 浦環, 杉松治美, 小島淳一, R. Bahl, S. Behera, 辛島司郎
  • Organizer: 第27回日本動物行動学会大会
  • Place of Presentation: 金沢大学自然科学研究科大講義棟
• [Presentation] Probable extinction of the Baiji, Lipotes vexillifer (2007)
  • Author(s): Turvey, et. al.
  • Organizer: 17th biennial conference on the biology of marine mammals
  • Place of Presentation: Cape town, South Africa
  • Year and Date: 2007-12-03
• [Presentation] Acoustic survey of baiji and finless porpoises in their historic habitats in the Yangtze River (2007)
  • Author(s): Akamatsu, et. al.
  • Organizer: 17th biennial conference on the biology of marine mammals
  • Place of Presentation: Cape town, South Africa
  • Year and Date: 2007-12-02
• [Presentation] Stationary acoustic monitoring of finless porpoises between Poyang Lake and Yangtze River, China (2007)
  • Author(s): Kimura, et. al.
  • Organizer: 17th biennial conference on the biology of marine mammals
  • Place of Presentation: Cape town, South Africa
  • Year and Date: 2007-12-01
• [Presentation] Comparison of Dolphin and Bat Sonar: Do Physical and Ecological Constraints Make Them Different? (2007)
  • Author(s): Akamatsu T.
  • Organizer: 17th biennial conference on the biology of marine mammals
  • Place of Presentation: Cape town, South Africa
  • Year and Date: 2007-11-28
• [Presentation] Acoustic Monitoring of Small Odontocetes: From Social Behaviour to Abundance Estimation Applicable to African Populations (2007)
  • Author(s): Akamatsu T. and Wang D.
  • Organizer: 17th biennial conference on the biology of marine mammals
  • Place of Presentation: Cape town, South Africa
  • Year and Date: 2007-11-27
• [Presentation] Geographic differences of echolocation signals in the finless porpoise (2007)
  • Author(s): Li, et. al.
  • Organizer: Japan-China Biologging Science Symposium
  • Place of Presentation: Wuhan, China
  • Year and Date: 2007-11-07
• [Presentation] Stationary acoustic monitoring of Yangtze finless porpoises at the mouth of poyang lake (2007)
  • Author(s): Dong, et. al.
  • Organizer: Japan-China Biologging Science Symposium
  • Place of Presentation: Wuhan, China
  • Year and Date: 2007-11-07
• [Presentation] Small scale acoustic line transect focusing on hot spots of Yangtze finless porpoises (2007)
  • Author(s): Kimura, et. al.
  • Organizer: Japan-China Biologging Science Symposium
  • Place of Presentation: Wuhan, China
  • Year and Date: 2007-11-07
• [Presentation] Acoustic biologging focusing on small cetaceans in China (2007)
  • Author(s): Wang, et. al.
  • Organizer: Japan-China Biologging Science Symposium
  • Place of Presentation: Wuhan, China
  • Year and Date: 2007-11-07
• [Presentation] 揚子江-ポーヤン湖接続域におけるスナメリモニタリング (2007)
  • Author(s): 木村里子, ら
  • Organizer: 第3回日本バイオロギング研究会シンポジウム
  • Place of Presentation: 北海道札幌市
  • Year and Date: 2007-09-08
• [Presentation] Bilateral bioacoustics research of Chinese freshwater dolphins (2007)
  • Author(s): Akamatsu, et. al.
  • Organizer: 日中ジョイント音響シンポジウム(招待講演)
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2007-06-05
• [Presentation] Comparison of echolocation behavior between coastal and riverine (2007)
  • Author(s): Akamatsu, et. al.
  • Organizer: 21st Annual Conference of the European Cetacean Society
  • Place of Presentation: Sansebastian, Spain
• [Presentation] Vocal hot spots of dugongs (Dugong dugon)monitored using simultaneous passive acoustic methods and visual observations in Thai waters.
  • Author(s): Ichikawa K.
  • Organizer: The Society for Marine Mammalogy 18th Biennial Conference-Quebec、Quebec City. QC. Canada.
  • Place of Presentation: Quebec City.QC.Canada.
• [Presentation] Development of high frequency signals in neonatal finless porpoises
  • Author(s): Li, S.
  • Organizer: The 5th Animal Sonar Symposium
  • Place of Presentation: Doshisha Univ.Kyoto. Japan.
• [Book] Biology, Evolution and Conservation of River Dolphins Within South America and Asia (Wildlife Protection, Destruction and Extinction) (2010)
  • Author(s): Li, S., Dong, S., Kimura, Tomonari Akamatsu, Kexiong Wang, Ding Wang
  • Total Pages: 504
  • Publisher: Nova Science Pub Inc
• [Book] Biosonar and auditory system of the yangtze finless porpoise, In : Endangered Species: New Research (2009)
  • Author(s): Li, S., Wang,D., Wang,K., Akamatsu,T., Supin, A.Y., Popov, V.V.、Eds : A.Columbus L. Kuznetsov.
  • Publisher: Nova Science Publishers, Inc
• [Book] Biosonar and auditory system of the yangtze finless porpoise, In : End angered Species : New Research (2009)
  • Author(s): Li, S., Wang, D., Wang, K., Akamatsu, T., Supin, A. Y., Popov, V. V.
  • Publisher: Eds : A. Columbus and L. Kuznetsov, Nova Science Publishers, Inc ISBN 978-1-60692-241-5(in press)
• [Book] 分担執筆 章題 Underwater Acoustical Sensing Behavior of Porpoises 書名 Bio-mechanisms of Swimming and Flying (2007)
  • Author(s): Akamatsu,T., Wang,D., Wang,K., and Naito, Y.
  • Total Pages: 403
  • Publisher: Springer
• [Book] In Biology, Evolution and Conservation of River Dolphins Within South America and Asia(Wild Protection,Destruction and Extinction)
  • Author(s): Li, S., Dong, S., Kimura, Akamatsu,T., Kexiong Wang, Ding Wang
  • Publisher: Nova Science Pub Inc.、Detection of Yangtze finless porpoise in the Poyang Lake mouth area via passive acoustic data-loggers.
• [Remarks]
  • URL: http://cse.fra.affrc.go.jp/akamatsu/at/homepage.html
• [Remarks]
  • URL: http://cse.fra.affrc.go.jp/akamatsu/at/homepage.html
• [Remarks]
  • URL: http://cse.fra.affrc.go.jp/akamatsu/