Bibliography and Index of the Sirenia and Desmostylia  

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"Uchida, Senzo"

Uchida, Senzo: SEE ALSO Kamiya et al., 1979; Nishiwaki et al., 1982. (detail)
 
 
 Uchida, Senzo; Tobayama, Teruo; Yoshida, Y. (detail)
   
1978
Keeping dugong, Dugong dugon, at the Ocean Expo Aquarium.
Jour. Jap. Assoc. Zool. Gardens & Aquariums 20(1): 11-17.
x
 
 Kamiya, Toshiro; Uchida, Senzo; Kataoka, Teruo (detail)
   
1979
Organ weights of Dugong dugon.
Sci. Rept. Whales Res. Inst. No. 31: 129-132. 2 tabs. Pls. 1-4.
–Weights of organs in 6 animals from the Philippines, Indonesia, and Okinawa, with body lengths and weights, intestine lengths, and photos of major organs.
 
 
 Kamiya, Toshiro; Uchida, Senzo; Tobayama, Teruo; Yoshida, M. (detail)
   
1979
Observation of Dugong dugon (2) from the point of view of comparative anatomy.
Sci. Rept. Whales Res. Inst. No. 326 [32?]: 35-42.
–In Japanese.
x
 
 Nishiwaki, Masaharu; Yamaguchi, M.; Shokita, S.; Uchida, Senzo; Kataoka, Teruo (detail)
   
1982
Recent survey on the distribution of the African manatee.
Sci. Rept. Whales Res. Inst. No. 34: 137-147. 2 figs. Dec. 1982.
–An interview survey in 1980-81 found evidence of T. senegalensis mainly in the Niger River and its tributaries; also in the Sanaga and Ivindo Rivers in Cameroon and Gabon, respectively; and in Gambia, Ivory Coast, and Ghana to some extent. They were found to be scarce or absent elsewhere, and not found at all in salt water. [More recent work by J. A. Powell, Jr., casts doubt on the accuracy of many statements in this report.] Points out the need for an international conservation strategy for the manatee.
 
 
 Uchida, Senzo (detail)
   
1994.
The dugong. In: S. Odate (ed.), Base data of Japanese rare wild aquatic organisms.
Tokyo: Fisheries Agency and Japanese Association for Conservation of Aquatic Resources, 569-583.
x
 
 Uchida, Senzo; Nagasaki, Tasuku; Miyahara, Hirokazu; Ueda, Keiichi; Ono, Hidehiko (detail)
   
1999
Introducing Caribbean manatees and treating diseases. [Abstr.]
IBI Reports (Kamogawa, Japan, Intl. Marine Biol. Research Inst.) No. 9: 131-133. Mar. 1999.
–In Engl. & Japanese. Paper presented at 10th Annual Intl. Symposium of the Intl. Mar. Biol. Res. Inst., Jan. 31-Feb. 1, 1998. Summarizes lessons learned in the care & transport of two Antillean manatees from Chetumal, Mexico to Okinawa in May 1997. Makes only general statements about pathology & treatment.
 
 
 Yamamuro, Masumi; Aketa, Kana; Uchida, Senzo (detail)
   
2004
Carbon and nitrogen stable isotope ratios of the tissues and gut contents of a dugong from the temperate coast of Japan.
Mammal Study 29(2): 179-183. 3 tabs. 3 figs.
 
 
 Kasamatsu, Masahiko; Kawauchi, Rieko; Tsunokawa, Masatoshi; Ueda, Keiichi; Uchida, Eiji; Oikawa, Shin; Higuchi, Hidetoshi; Kawajiri, Takaaki; Uchida, Senzo; Nagahata, Hajime (detail)
   
2009
Comparison of serum lipid compositions, lipid peroxide, alpha-tocopherol and lipoproteins in captive marine mammals (bottlenose dolphins, spotted seals and West Indian manatees) and terrestrial mammals.
Research in Veterinary Science 86(2): 216-222. 3 tabs. 3 figs. DOI: 10.1016/j.rvsc.2008.07.006. April 2009.
–ABSTRACT: Concentrations of serum lipid components, lipid peroxide (LPO) and ?-tocopherol and electrophoretic patterns of lipoproteins in serum samples obtained from captive marine mammals and terrestrial mammals were compared. Serum concentrations of total cholesterol, free fatty acid, and phospholipid in fish-eating animals were significantly higher than those in manatees and cows. Serum LPO and ?-tocopherol concentrations in the fish-eating animals were also significantly higher than those in manatees, cows and dogs. Different patterns of densitometric scans of low density lipoprotein (LDL) and a significantly lower percentage of LDL were demonstrated in the dolphins compared with the seals, cow and dogs. The concentration of LPO was significantly correlated with triglyceride and phospholipid concentrations in serum from the dolphins. These results suggest that triglyceride and phospholipid are susceptible to oxidative reaction in fish-eating animals. Evaluation of serum lipids, LPO and ?-tocopherol concentrations is needed for nutritional husbandry for fish-eating animals.
 
 
 Kikuchi, Mumi; Suzuki, Miwa; Ueda, Keiichi; Miyahara, Hirokazu; Uchida, Senzo (detail)
   
2011
The differences in behavioral responses to a net obstacle between day and night in captive manatees: does entanglement happen at night?
Fisheries Science 77(5): 795-798. 2 tables. 1 fig. DOI: 10.1007/s12562-011-0388-x. Sept. 2011.
–ABSTRACT: Entanglement in fishing gear occurs in endangered manatees and may result in serious injury or death. Such incidents may happen more frequently at night when the animal's visual sense is limited. In this study, we examined the differences in behavioral response of captive manatees to a net obstacle during light (day) and dark (night) periods. We used a plastic net as the obstacle, and video-recorded the manatees' behavior. The experiments showed that captive manatees avoided the obstacle during the day more frequently than at night, which suggests that the manatees can perceive the obstacle more readily during light periods. However, there was no difference in the frequency of bumping or actively touching the obstacle between light and dark periods. The results suggest that the manatees can recognize the net obstacle even at night by purposely touching it, but they avoid it less frequently, and that entanglement during light periods may occur during accidental bumping, rather than from a failure to recognize it altogether.
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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