Examples for further research

General overview

  • Li et al.(2010) Widespread passive acoustic detection of Yangtze finless porpoise using miniature stereo acoustic data-loggers: A review, J. Acoust. Soc. Am. 128, 1476-1482. Download


    Range-wide distribution

  • Zao, X., Wang, D., Turvey, S.T., Taylor, B., Akamatsu, T. (2013) Distribution patterns of Yangtze finless porpoises in the Yangtze River: Implications for reserve management, Animal Conservation, doi: 10.1111/acv.12019.

    Abundance estimation

  • Akamatsu, T., Ura, T., Sugimatsu, H., Bahl, R., Behera, S., Panda, S., Khan, M., Kar, S. K., Kar, C. S., Kimura, S., Sasaki-Yamamoto, Y., (2013) A multimodal detection model of dolphins to estimate abundance validated by field experiments, J. Acoust. Soc. Am., 134, 2418-2426. Download

    Local distribution

  • Kimura, et al. (2012), Seasonal changes in the local distribution of Yangtze finless porpoises related to fish presence, Marine Mammal Science, 28(2), 308-324. Download

    Cagoship based observation

  • Dong et al.(2011), Passive acoustic survey of Yangtze finless porpoises using a cargo ship as a moving platform, J. Acoust. Soc. Am. 130, 2285-2292. Download

    Movement and tracking

  • Li et al.(2009), Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers, J. Acoust. Soc. Am. 126, 468-475. Download

    Boat avoidance

  • Li et al.(2008), Indirect Evidence of boat avoidance behavior of Yangtze finless porpoises, Bioacoustics The International Journal of Animal Sound and its Recording, 17, 174-176. Download

    Acoustic detection probability

  • Kimura, S., Akamatsu, T., Dong, L., Wang, K., Wang, D., Shibata, Y. and Arai, N. (2014) Acoustic capture-recapture method for towed acoustic surveys of echolocating porpoises, J. Acoust. Soc. Am., 135, 3364-3370. Download

  • Richman, N.I. Gibbons, J.M., Turvey, S.T., Akamatsu, T., Ahmed, B., Mahabub, E., Smith, B.D., and Jones J.P.G. (2014) To see or not to see: investigating detectability of Ganges River dolphins using a combined visual-acoustic survey, PLoS ONE 9(5), e96811. Download

  • Akamatsu et al.(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. Download


    Movements and behavior

  • Lin, T., Akamatsu, T., Chou, L., (2013) Tidal influences on habitat use of Indo-Pacific humpback dolphins (Sousa chinensis) at an estuarine habitat, Marine Biology, 160, 1353-1363, doi: 10.1007/s00227-013-2187-7.

  • Sasaki-Yamamoto, Y., Akamatsu, T., Ura, T., Sugimatsu, H., Kojima, J., Bahl, R., Behera, S., Kohshima, S. (2012), Diel changes in the movement patterns of Ganges River dolphins monitored using stationed stereo acoustic data loggers, Marine Mammal Science 29, 589-605, doi: 10.1111/j.1748-7692.2012.00590.x

    Diurnal and seasonal presence

  • Lin et al. (2014) Seasonal distribution of Indo-Pacific humpback dolphins at an estuarine habitat: influences of upstream rainfall, Estuaries and Coasts,DOI 10.1007/s12237-014-9886-2.

  • Dede, A., Amaha-Ozturk, A., Akamatsu, T., Tonay, A.M., Ozturk, B. (2013) Long-term passive acoustic monitoring revealed seasonal and diurnal presence patterns of cetaceans in the Istanbul strait, Journal of Marine Biological Association, in press, doi:10.1017/S0025315413000568.

  • Wang, Z., Akamatsu, T., Wang, K., Wang, D. (2014) The diel rhythms of biosonar behavior in the Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) in the port of the Yangtze River: the correlation between prey availability and boat traffic, PLoS ONE 9(5), e97907. Download

  • Akamatsu et al.(2010), Seasonal and diurnal presence of finless porpoises at a corridor to the ocean from their habitat, Marine Biology 157, 1879-1887. Download

  • Akamatsu et al.(2008), Evidence of nighttime movement of finless porpoises through Kanmon Strait monitored using a stationary acoustic recording device, Fisheries Science 74, 970-976. Download

    Absolute density estimation

  • Kimura et al.(2010) Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection, J. Acoust. Soc. Am. 128, 1435-1445. Download

    Relative density comparison

  • Kimura et al.(2009), Comparison of stationary acoustic monitoring and visual observation of finless porpoises, J. Acoust. Soc. Am., 125, 547-553. Download

    Species descrimination

  • Kameyama, S., Akamatsu, T., Dede, A., Otzurk, A. and Arai, N. (2014) Acoustic discrimination between harbor porpoises and delphinids by using a simple two-band comparison, J. Acoust. Soc. Am., 136, 922-929. Download


    Time synchronization among tags

  • 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.

    Foraging and sensing behavior

  • Akamatsu et al.(2010), Scanning sonar of rolling porpoises during prey capture dives. J. Exp. Biol. 213, 146-152. Download

  • Rasmussen, M.H., Akamatsu. T., Teilmann. J., Vikingsson, G., and Miller, L.A. (2013) Biosonar, diving and movements of two tagged white-beaked dolphin in Icelandic waters, Deep-Sea Research II, 88-89, 97-105, 10.1016/j.dsr2.2012.07.011.

  • Linnenschmidt, M., Teilmann, J., Akamatsu, T., Dietz, R., Miller, L. (2013), Biosonar, dive and foraging activity of satellite tracked harbor porpoises (Phocoena phocoena), Marine Mammal Science, 29, E77-E97. doi: 10.1111/j.1748-7692.2012.00592.x.

    Sound productoin in the wild

  • Kimura, S., Akamatsu, T., Wang, D., Li, S., Wang, K., Yoda, K. (2013) Variation in the production rate of biosonar signals in freshwater porpoises, J. Acoust. Soc. Am., 133, 3128-3134.

  • Akamatsu et al.(2007), Comparison of echolocation behaviour between coastal and riverine porpoises, Deep-Sea Research II 54(3-4), 290-297. Download

    A-tag system description focus on tagging experiment

  • Akamatsu et al.(2005), New stereo acoustic data logger for tagging on free-ranging dolphins and porpoises. Marine Technology Society Journal 39(2), 3-9. Download

    Careful porpoises inspect in advance

  • Akamatsu et al.(2005), Biosonar behaviour of free-ranging porpoises, Proc. R. Soc. Lond. B 272, 797-801. Download

    Off-axis beam pattern

  • Akamatsu et al.(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. Download


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