Bibliography and Index of the Sirenia and Desmostylia  

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"Kasuya, Toshio"

Kasuya, Toshio: SEE ALSO Marsh & Kasuya, 1981; Nishiwaki et al., 1979. (detail)
x
 
 Kasuya, Toshio; Nishiwaki, Masaharu (detail)
   
1978
On the age characteristics and anatomy of the tusk of Dugong dugon.
Sci. Rept. Whales Res. Inst. No. 30: 301-310. 1 tab. 3 figs. 4 pls. Dec. 1978.
–Monthly and annual growth layers identified in tusks; females thought to be sexually mature at about 10 years and to live at least 45 years.
x
 
 Nishiwaki, Masaharu; Kasuya, Toshio; Miyazaki, Nobuyuki; Tobayama, Teruo; Kataoka, Teruo (detail)
   
1979
Present distribution of the dugong in the world.
Sci. Rept. Whales Res. Inst. No. 31: 133-141. 2 figs. Dec. 1979.
–Abstr.: Nishiwaki et al. (1981). Summarizes dugong distribution based on interview surveys, and recognizes 5 more or less discrete areas of relatively continuous distribution: eastern Australia, eastern Papua New Guinea, and Melanesia; western Australia, Moluccas, and Philippines; Sumatra, Malaysia, and Andamans; India and Sri Lanka; and East Africa and Madagascar. Suggests that dugong populations in the latter two regions are declining, and offers a population guesstimate of 30,000 animals worldwide. Cites records of rare dugong occurrences at Guam and Yap; discusses the roles of water temperature and ocean currents in dugong distribution; and notes the issuance of dugong postage stamps by the Ryukyus (in 1966) and Tanzania (in 1977).
x
 
 Marsh, Helene D.; Kasuya, Toshio (detail)
   
1981
Report of the age determination workshop. In: H. Marsh (ed.), The dugong. Proceedings of a seminar/workshop held at James Cook University of North Queensland 8-13 May 1979 (q.v.).
[Townsville (Australia)], James Cook Univ. (vii + 400): 354-368. 3 tabs. 1 fig.
–Describes a workshop on the preparation and reading of growth layers in dugong tusks, with tabulation and comparison of the results obtained by experienced and inexperienced readers. Tusks from lower latitudes tended to be harder to score due to their numerous accessory layers.
n
 
 Nishiwaki, Masaharu; Kasuya, Toshio; Tobayama, Teruo; Miyazaki, Nobuyuki; Kataoka, Teruo (detail)
   
1981
Distribution of the dugong (Dugong dugon) in the world. In: H. Marsh (ed.), The dugong. Proceedings of a seminar/workshop held at James Cook University of North Queensland 8-13 May 1979 (q.v.).
[Townsville (Australia)], James Cook Univ. (vii + 400): 8-9.
–Abstr. of Nishiwaki et al. (1979).
 
 
 Shirakihara, Miki; Yoshida, Hideyoshi; Yokochi, Hiroyuki; Ogawa, Hisao; Hosokawa, Taro; Higashi, Naoto; Kasuya, Toshio (detail)
   
2007
Current status and conservation needs of dugongs in southern Japan.
Mar. Mamm. Sci. 23(3): 694-706. 3 tabs. 3 figs. July 2007.
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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