publications

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Kimura, S., Akamatsu, T., Li, S., Dong, L., Wang, K., Wang, D., and Arai, N. (2012), Seasonal changes in the local distribution of Yangtze finless porpoises related to fish presence, Marine Mammal Science, 28(2), 308-324.

Kimura,S., Akamatsu, T., Dong, L., Wang, S., Wang, K., Wang, D., Arai, N. (2012), Zigzag transect survey by towed passive acoustic method for finless porpoise in the Yangtze River. Proc. 11th SEASTAR2000, 37-41.

Sakai, M., Wang, D., Wang, K., Li, S., Akamatsu, T. (2011), Do porpoises choose their associates? a new method for analyzing social relationships among cetaceans, PLoS ONE, 6(12), 1-8.

Kaifu, K., Akamatsu, T., and Segawa, S. (2011), Preliminary evaluation of underwater sound detection by the cephalopodstatocyst using a forced oscillation model, Acoustical Science and Technology, 32(6), 255-260.

Dong, L., Wang, D., Wang, K., Li, S., Dong, S., Zhao, Z., Akamatsu, T., Kimura, S. (2011), Passive acoustic survey of Yangtze finless porpoises using a cargo ship as a moving platform, J. Acoust. Soc. Am. 130, 2285-2292.

Boyd, I, Frisk, G., Urban, E., Tyack, P., Ausube, J., Seeyave, S., Cato, D., Southal, B., Weise, M., Andrew, R., Akamatsu, T., Dekeling, R., Erbe, C., Farmer, D., Gentry, R., Gross, T., Hawkins, A., Li, F., Metcalf, C., Miller, J.H., Moretti, D., Rodrigo, C., and Shinke, T. (2011), An international quiet ocean project, Oceanography 24, 174-181.

Ichikawa, K., Akamatsu, T., Shinke, T., Adulyanukosol, K., and Arai, N. (2011) Callback response of dugongs to playbacks of a conspecific chirp, J. Acoust. Soc. Am. 129, 3623-3629.

Morisaka, T., Karczmarski, L., Akamatsu, T., Sakai, M., Dawson, S., and Thornton, M. (2011) Echolocation signals of Heaviside's dolphins (Cephalorhynchus heavisidii), J. Acoust. Soc. Am. 129, 449-457.

Kimura, S., Akamatsu, T., Li, S., Dong, S., Dong, L., Wang, K., Wang, D., and Arai, N. (2010) Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection, J. Acoust. Soc. Am. 128, 1435-1445.

Li, S., Akamatsu, T., Dong, L., Wang, K., Wang, D., and Kimura, S. (2010) Widespread passive acoustic detection of Yangtze finless porpoise using miniature stereo acoustic data-loggers: A review, J. Acoust. Soc. Am. 128, 1476-1482.

Li, S. Dong, S., Kimura, S., Akamatsu, T., Wang, K., and Wang,D (2010) Detection of Yangtze finless porpoise in the Poyang Lake mouth area via passive acoustic data-loggers. In: Biology, Evolution, and Conservation of River Dolphins within South America and Asia. Ruiz-Garcia, M., and Shostell, J. M. (Eds). Nova Science Pub Inc. ISBN 978-1-60876-633-8, pp.343.355.

Akamatsu T., Nakamura K., Kawabe R., Furukawa S., Murata H., Kawakubo A. Komaba M., (2010), Seasonal and diurnal presence of finless porpoises at a corridor to the ocean from their habitat, Marine Biology 157, 1879-1887.

Akamatsu, T. (2010) Underwater Bioacoutics, in Bulletproof Feathers: How Science Uses Nature's Secrets to Design Cutting-edge Technology, p.67-87, Robert Allen ed., University of Chicago Press, 192pp. ISBN-10: 0226014703

Akamatsu, T. Wang, D. Wang, K, Li, S., Dong, S. (2010), Scanning sonar of rolling porpoises during prey capture dives. J. Exp. Biol. 213, 146-152.

Kimura, S., Akamatsu, T., Li, S., Dong, S., Wang, K., Wang, D. and Nobuaki, A., (2010), Tracking trials of echolocating finless porpoise by two stationary passive acoustic monitoring systems, Proc. 9th SEASTAR2000, 73 -76.

Ichikawa, K., Akamatsu, T., Arai, N., Shinke, T., and Adulyanukosl, K. (2010), Spatial distribution of dugongs by acoustic and visual observation in Thailand, Proc. 9th SEASTAR2000, 39-42.

Li, S., Wang,D., Wang,K., Akamatsu,T., Supin, A.Y. and Popov, V.V. (2009), Biosonar and auditory system of the Yangtze finless porpoise, In: Endangered Species: New Research, Eds: A. Columbus and L. Kuznetsov, Nova Science Publishers, Inc ISBN 978-1-60692-241-5, pp.1-13.

Ichikawa, K., Akamatsu, T., Shinke, T., Sasamori, K., Miyauchi, Y., Abe, Y., Adulyanukosol, K., Arai, N. (2009), Detection probability of vocalizing dugongs during playback of conspecific call, J. Acoust. Soc. Am. 126, 1954-1959.

Li, S., Akamatsu, T., Wang, D., and Wang, K. (2009), Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers, J. Acoust. Soc. Am. 126, 468-475.

Matsuo,I., Imaizumi, T., Akamatsu, T., Furusawa, M., and Nishimori, Y. (2009), Analysis of the temporal structure of fish echoes using the dolphin broadband sonar signal, J. Acoust. Soc. Am. 126, 444-450.

Kurosaka, K., Yamashita, H., Ochi, Y., Ogawa, M., Akamatsu, T., Inasa, H., Watanabe, T. (2009), Influence of autojigger's winding velocity on lure holding behavior of neon flying squid Ommastrephes bartrami . Fisheries Science 75, 83-85. (in Japanese with English abstract)

Kimura, S., Akamatsu, T., Wang, K., Wang, D., Li, S., Dong, S., and Arai, N. (2009), Comparison of stationary acoustic monitoring and visual observation of finless porpoises, J. Acoust. Soc. Am., 125, 547-553.

Amamoto, N., Ichikawa, K., Arai, N., Akamtatsu, T., Shinke, T., and Adulyanukosol, K. (2009) The depth of water effects the feeding ground selection by dugongs in dry season. J. Adv. Mar. Sci. Tech. 15, 149-157.

Kimura, S., Akamatsu, T., Wang, K., Li, S., Dong, S., and Wang, D. (2009), Small-scale towing survey combined acoustical and visual observation for finless porpoise in the Yangtze River, Proc. 8th SEASTAR2000, 63 -65.

Rika Shiraki, Kotaro Ichikawa, K., Shinke, T., Arai, N., Akamatsu, T., Hara, T., and Adulyanukosl, K. (2009) Development of detection devise for dugong calls. Proc. 8th SEASTAR2000, 59-62.

Ichikawa, K., Akamatsu, T., Arai, N., Shinke, T., Hara, T., and Adulyanukosl, K. (2009), Preliminary estimation of detection rate of dugong acoustical observation. Proc. 8th SEASTAR2000, 47-50.

Amamoto, N., Ichikawa, K., Arai, N., Akamatsu, T., Shinke, T., Hara, T., and Adulyanukosl, K. (2009), Seasonal characterization of dugong feeding and biomass utilization on selected site in Talibong Island. Proc. 8th SEASTAR2000, 41-44.

Dalton, R. (2008), Acoustic sensors for rare porpoise, Nature 456, 431 (news report).

Akamatsu,T (2008), 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, pp.1897-1907.

Imaizumi, T., Furusawa, M., Akamatsu, T., and Nishimori, Y. (2008), Measurement of target strength spectrum of fish using sonar signals of dolphin, J. Acoust. Soc. Am. 124(6), 3440-3449.

Zhao, X., Barlow, J., Taylor, B., Pitman, R., Wang, K., Wei, Z., Stewart, B., Turvey, S., Akamatsu, T., Reeves, R., Wang, D. (2008), Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China, Biological Conservation, 141, 3006-3018.

Li, S., Wang, K., Dong, S., Wang, D., & Akamatsu, T., (2008), Simultaneous production of low- and high-frequency sounds in neonatal finless porpoises, J. Acoust. Soc. Am. , 124(2), 716-718.

Akamatsu,T., Nakazawa, I., Tsuchiyama, T., Kimura, N., (2008), Evidence of nighttime movement of finless porpoises through Kanmon Strait monitored using a stationary acoustic recording device, Fisheries Science 74, 970-976.

Kaifu, K., Akamatsu, T., and Segawa, S. (2008), Underwater Sound Detection by the Cephalopod Statocyst, Fisheries Science , 74, 781-786. 2008 Paper Award by The Japanese Society of Fisheries Science

Akamatsu, T., Wang, D., Wang, K., Li, S., Dong, S., Zhao, X., Barlow, J., Stewart, B.S., Richlen, M., (2008), Estimation of the detection probability for Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis) with a passive acoustic method, J. Acoust. Soc. Am. 123(6), 4403-4411.

Nachtigall, P.E., Mooney, T.A., Taylor,K.A., Miller, L.A., Rasmussen, M.H., Akamatsu, T., Teilmann, J., Linnenschmidt, M., and Vikingsson, G.A. , (2008), Shipboard measurements of the hearing of the white-beaked dolphin Lagenorhynchus albirostris, J. Exp. Biol. 211, 642-647.

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., and Brandon, J.R. (2008), Indirect Evidence of boat avoidance behavior of Yangtze finless porpoises, Bioacoustics The International Journal of Animal Sound and its Recording, 17, 174-176.

Akamatsu,T., Wang,D., Wang,K., and Naito, Y., (2007), Underwater Acoustical Sensing Behavior of Porpoises, Bio-mechanisms of Swimming and Flying, Springer, pp.117-127.

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., (2007), First human-caused extinction of a cetacean species?, Biology Letters 3(5), 537-540.http://www.journals.royalsoc.ac.uk/content/15782wq480207749/

Li,S., Wang, D., Wang,K., Xiao,J., Akamatsu, T., (2007), The ontogeny of echolocation in a Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis ), J. Acoust. Soc. Am. 122(2), 715-718.

Li,S., Wang, D., Wang,K., Akamatsu, T., Ma., Z., and Han, J., (2007), Echolocation click sounds from wild inshore finless porpoise (Neophocaena phocaenoides sunameri) with comparisons to the sonar of riverine N. p. asiaeorientalis , J. Acoust. Soc. Am. 121(6), June 2007, 3938-3946.

Akamatsu, T., Teilmann, J., Miller, L.A., Tougaard, J., Dietz, R., Wang, D., Wang, K., Siebert, U., and Naito, Y. (2007), Comparison of echolocation behaviour between coastal and riverine porpoises, Deep-Sea Research II 54(3-4), 290-297.

Sato,K., Watanuki, Y., Takahashi, A., Miller, P.J.O., Tanaka, H., Kawabe, R., Ponganis, P.J., Handrich, Y., Akamatsu,T., Watanabe, Y., Mitani, Y., Costa,D.P., Bost, C., Aoki, K., Amano, M., Trathan, P., Shapiro, A., and Naito, Y. (2006), Stroke frequency, but not swimming speed,is related to body size in free-ranging seabirds,pinnipeds and cetaceans. Proc. R. Soc. Lond. B 274, 471-477.

Li,S.,Wang,D.,Wang,K.,Akamatsu,T. (2006), Sonar gain control in echolocating finless porpoises (Neophocaena phocaenoides) in an open water, J. Acoust. Soc. Am. 120(4), 1803-1806.

Wang,K.,Wang,D.,Akamatsu,T.,Fujita,K.,Shiraki,R., (2006), Estimated detection distance of a baiji's(Chinese river dolphin,Lipotes vexillifer) whistles using a passive acoustic survey method, J. Acoust. Soc. Am.120(3), 1361-1365.

Tsutsumi,C.,Ichikawa,K.,Arai,N.,Akamatsu,T., Shinke,T., Hara,T.,Adulyanukosol,K., (2006), Feeding behavior of wild dugongs monitored by a passive acoustical method, J. Acoust. Soc. Am.120(3), 1356-1360.

Tomohiro SUGA, Tomonari AKAMATSU, Tomonori HIRAISHI, Katsutaro YAMAMOTO, (2006), Contamination of Auditory Evoked Potential of Goldfish Carassius auratus with Microphonic Potential, J. Marine Acoust. Soc. Jpn. 33(2), 85-88.

Ichikawa, K., Tsutsumi, C., Arai, N., Akamatsu, T., Shinke, T., Hara, T., Adulyanukosol, K. (2006), Dugong (Dugong dugon) vocalization patterns recorded by automatic underwater sound monitoring systems. J. Acoust. Soc. Am. 119, 3726-3733.

Li, S., Wang, K., Wang, D., and Akamatsu, T. (2005), The origin of the double-pulse and multi-pulse structure of echolocation signals of Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientialis), J. Acoust. Soc. Am. 118, 3934-3940.

Akamatsu, T., Matsuda, A., Suzuki, S., Wang, D., Wang, K., Suzuki, M., Muramoto, H., Sugiyama, N. and Oota. K. (2005), New stereo acoustic data logger for tagging on free-ranging dolphins and porpoises. Marine Technology Society Journal 39(2), 3-9.

Wang, K. Wang, D., Akamatsu, T., Li, S. and Xiao, J. (2005), A passive acoustical monitoring method applied to observation and group size estimation of finless porpoises, J. Acoust. Soc. Am. 118(2), 1180-1185.

Morisaka, T., Shinohara, M., Nakahara, F. and Akamatsu, T. (2005), Effects of ambient noise on the whistles of Indo-Pacific bottlenose dolphin populations. Journal of Mammalogy 86(3), 541-546.

Morisaka, T., Shinohara, M., Nakahara, F. and Akamatsu, T. (2005), Geographic variations in the whistles of Indo-Pacific bottlenose dolphins (Tursiops aduncus). Fisheries Science 71(3), 568-576.

Akamatsu, T. Wang, D. Wang, K. and Naito, Y. (2005), Biosonar behaviour of free-ranging porpoises, Proc. R. Soc. Lond. B 272, 797-801. HOT TOPIC　Careful Porpoises Inspect Ahead in Advance

Akamatsu, T. Wang, D. and Wang, K. (2005), Off-axis sonar beam pattern of free-ranging finless porpoises measured by a stereo pulse event data logger, J. Acoust. Soc. Am. 117(5), 3325-3330. ABSTRACT HOT TOPIC　Wider Angle Sonar than Expected

Li, S. Wang, k., Wang, D. and Akamatsu, T. (2005), Echolocation signals of the free-ranging Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientialis), J. Acoust. Soc. Am. 117(5), 3288-3296. ABSTRACT

Suga, T., Akamatsu, T., Sawada, K., Hashimoto, H., Kawabe, R., Hiraishi, T. and Yamamoto, K. (2005), Audiogram measurement based on the auditory brainstem response for juvenile Japanese sand lance Ammodytes personatus, Fisheries Science 71(2), 287-292.

Kojima, T., Ito, H., Kodama, T., Taniuchi, T. and Akamatsu, T. (2005), Measurements of auditory sensitivity in common carp Cyprinus carpio by the auditory brainstem response technique and cardiac conditioning method, Fisheries Science 71(1), 95-100.

Tsutsumi, C., Ichikawa, K., Akamatsu, T., Arai, N., Shinke, T., Hara, T., and Adulyanukosol, K. (2005), Monitoring dugong feeding behavior in a tidal flat by visual and acoustic observation. Proc. 6th SEASTAR2000, 37-44.

Sakamoto, S., Ichikawa, K., Akamatsu, T., Shinke, T., Arai, N., Hara, T., and Adulyanukosol, K. (2005), Analysis on ship noise around dugongs'habitat. Proc. 6th SEASTAR2000, 33-36.

Okumura, N., Ichikawa, K., Akamatsu, T., Arai, N., Shinke, T., Hara, T., and Adulyanukosol, K. (2005), Pattern analyses on the vocal structure of dugong calls. Proc. 6th SEASTAR2000, 29-32.

Hishimoto, Y., Ichikawa, K., Akamatsu, T., Arai, N (2005), The acoustical characteristics of dugong calls and the behavioral correlates observed in Toba aquarium. Proc. 6th SEASTAR2000, 25-28.

Nakamura,K. and Akamatsu, T. (2004), Comparison of click characteristics among odontocete species. in: Advances in the Study of Echolocation in Bats and Dolphins. Eds. Thomas, J., Moss, C. & Vater, M., University of Chicago Press, pp.36-40.

Akamatsu, T., Wang, D., and Wang., K. (2004), Remote acoustic monitoring of aquatic mammals, Proc. 5th SEASTAR2000, 79-83.

Tsutsumi, C., Ichikawa, K., Akamatsu, T., Arai, N., Shinke, T., Hara, T., and Adulyanukosol, K. (2004), A visual-acoustic combined observation method to monitor seagrass bed utilization by dugongs (Dugong dugon) in a tidal flat. Proc. 5th SEASTAR2000, 69-71.

Ichikawa, K., Tsutsumi, C., Akamatsu, T., Shinke, T., Arai, N., Hara, T., and Adulyanukosol,K (2004), Acoustic detection of dugong using automatic underwater sound monitoring systems: AUSOMS-D. Proc. 5th SEASTAR2000, 64-68.

Akamatsu, T., Nanami,A., and Hong Y. Yan (2003), Spotlined sardine Sardinops melanostictus listens to 1-kHz sound by using its gasbladder. Fisheries Science 69(2), 348-354.

Akamatsu, T. Tsuyoshi Okumura, Nicola Novarini and Hong Y. Yan (2002), Empirical refinements applicable to the recording of fish sounds in small tanks. J. Acoust. Soc. Am. 3073-3082. ABSTRACT

Akamatsu, T., Ding Wang, Kexiong Wang, Zhuo Wei, Qingzhong Zhao, Yasuhiko Naito (2002), Diving behavior of freshwater finless porpoises (Neophocaena phocaenoides) in an oxbow of the Yangtze River, China. ICES Journal of Marine Science 59, 438-443. ABSTRACT

Akamatsu, T., Wang, D., Wang, K. and Wei, Z. (2001), Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze River, China. J. Acoust. Soc. Am. 109(4), 1723-1727. ABSTRACT

Akamatsu, T., Wang, D., Wang, K. and Y. Naito (2000), A method for individual identification of echolocation signals in free-ranging finless porpoises carrying data loggers. J. Acoust. Soc. Am. 108(3), 1353-1356. ABSTRACT

Wang, D., Wang, K., Akamatsu, T. and Fujita, K. (1999), Study on whistles of the Chinese river dolphin or baiji (Lipotes vexillifer). Oceanologia et Limnologia Sinica 30(4), 349-354 (in Chinese).

Akamatsu, T., Wang, D., Nakamura, K. and Wang, K. (1998), Echolocation range of captive and free-ranging baiji (Lipotes vexillifer) , finless porpoise (Neophocaena phocaenoides) and bottlenose dolphin (Tursiops truncatus). J. Acoust. Soc. Am. 104(4), 2511-2516. ABSTRACT　

Nakamura, K., Akamatsu, T., Goodson, A.D., Kagoshima, K. and Shimazaki, K. (1998),　 Gillnet passive acoustic deterrents: investigating inter-reflector spacings with a harbor porpoise Phocoena phocoena.　 Fisheries Science 64(4), 648-649.

Akamatsu, T., Nakamura, K., Nitto, H. and Watabe, M. (1996), Effects of underwater sounds on escape behavior of Steller sea lions. Fisheries Science 62(4), 503-510. ABSTRACT

Akamatsu, T., Matsushita, Y., Hatakeyama, Y. and Inoue, Y. (1996), Startle response level of Japanese anchovy Engraulis japonicus to underwater pure tone signals. Fisheries Science 62(4), 648-649.

Akamatsu, T., Nakagawa, T. and Hatakeyama, Y. (1995), Effects of visual deprivation on the echolocation rate by a bottlenose dolphin (Tursiops truncatus). In Kastelein R.A., Thomas J.A. and Nachtigall P.E. (eds), Sensory systems of aquatic mammals, De Spil Publishers, Woerden, The Netherlands. pp.163-170. ABSTRACT

Akamatsu, T., Hatakeyama, Y., Kojima, T. and Soeda, H. (1994), Echolocation rates of two harbor porpoises (Phocoena phocoena). Marine Mammal Science, 10(4), 401-411. ABSTRACT

Hatakeyama, Y., Ishii, K., Akamatsu T., Soeda, H., Shimamura, T. and Kojima T. (1994), A review of studies on attempts to reduce the entanglement of the Dall's porpoise, Phocoenoides dalli, in the Japanese salmon gillnet fishery. Rept. Int. Whal. Commn. (Special Issue 15), 549-563.

Akamatsu, T., Hatakeyama, Y. and Takatsu, N. (1993), Effects of pulse sounds on escape behavior of false killer whales. Nippon Suisan Gakkaishi, 59(8),1297-1303. ABSTRACT

Akamatsu, T., Hatakeyama, Y., Kojima, T. and Soeda, H. (1992), The rate with which a harbor porpoise uses echolocation at night. In: Thomas, J.A., Kastelein, R.A. and Supin, A.Y. (eds), Marine mammal sensory systems. Plenum Press, New York. pp.299-315.

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