Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Nasitrema attenuata (Digenia: Nasitrematidae) Infection of Long-beaked Common Dolphin (Delphius capensis) in the East Sea, Korea

  • Lim, Chae-Wong (College of Veterinary Medicine, Chonbuk National University) ;
  • Han, Seajin (College of Veterinary Medicine, Chonbuk National University) ;
  • Kim, Bumseok (College of Veterinary Medicine, Chonbuk National University) ;
  • Alexander, Umanets (College of Veterinary Medicine, Chonbuk National University) ;
  • Lee, Young-Ran (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Park, Tae-Geon (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Park, Kyum Joon (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Kim, Doo-Nam (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Sohn, Hawsun (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • An, Du-Hae (Cetacean Research Institute, National Fisheries Research and Development Institute) ;
  • Kim, Hyeon-Cheol (College of Veterinary Medicine, Kangwon National University) ;
  • Sim, Cheolho (Department of Biology, Baylor University) ;
  • Ryu, Si-Yun (College of Veterinary Medicine, Chungnam National University) ;
  • Park, Bae-Keun (College of Veterinary Medicine, Chungnam National University)
  • Received : 2015.04.06
  • Accepted : 2015.10.14
  • Published : 2016.06.30
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Abstract

The trematodes of Genus Nasitrema are the most common infection in the heads of small odontocetes. Five species of Nasitrema have been described in Asia. But those parasites has been not surveyed in the East Sea of Korean peninsula. There are no evidence of pathology associated with Nasitrema attenuate. To determine the infection ratio of N. attenuata in the dolphin, it was surveyed 9 long-beaked common dolphin, Delphinus capensis, caught incidentally from Samcheok to Pohang, East Sea, Korea. Five males and four females, estimated to be between 1 to 10 years old, were examined. The quantity of N. attenuata harvested by aspiration from pterygoid sinuses ranged from 10 to 100 with a 100% (9/9) infection with older dolphins exhibiting higher parasite counts. The body of trematoda was elongated with tegumental patches resembling the leaves of lilies and oral sucker located ventrally at the anterior terminal. Esophagus was absent and intestinal bifurcation arose immediately from the posterior of pharynx. The undulated intestinal caeca transversed the entire body and terminated at the posterior extremity of the worm. The genital pore opened anterior to the ventral sucker. This report confirms the prevalence and morphology of N. attenuata in the dolphins from the East Sea, Korea.

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References

  1. Van Bree PJH. Delphinus tropicalis, a new name for Delphinus longirostris G. Cuvier 1829. Mammalia 1971; 35: 345-346.
  2. Van Bree PJH, Gallagher MD. On the taxonomic status of Delphinus tropicalis van Bree, 1971 (Notes on Cetacea, Delphinoidea IX). Beaufortia 1978; 28: 1-8.
  3. Cowan DF, Walker WA, Brownell RL. Pathology of small cetaceans stranded along southern California beaches. In Research on dolphins, M.M. Bryden and R. Harrison ed. Oxford, England. Oxford University Press. 1986: 323-367.
  4. Dailey MD. A New species of Digenea (Trematoda: Brachycladiidae) from the Gervais' beaked whale, Mesoplodon europaeus, with comments on other cetacean liver flukes. Comp Parasitol 2007; 74: 229-232. https://doi.org/10.1654/4250.1
  5. Dailey MD. Walker WA. Parasitism as a factor (?) in single strandings of southern Californian cetaceans. J Parasitol 1978; 64: 593-596. https://doi.org/10.2307/3279939
  6. Gibson DI. Family Brachycladiidae Odhner, 1905. In Jones A, Bray RA, and Gibson DI. ed. Key to the trematoda. Vol. 2. London, UK: CAB International and the Natural History Museum, London. 2005; 641-652.
  7. Heyning JE, Perrin WF. Evidence for two species of common dolphins (genus Delphinus) from the eastern North Pacific. Natural History Museum Los Angeles County Contributions in Science 1994; 442: 1-35.
  8. Jefferson TA, Van Waerebeek K. The taxonomic status of the nominal dolphin species Delphinus tropicalis van Bree, 1971. Mar Mamm Sci 2002; 18: 787-818. https://doi.org/10.1111/j.1748-7692.2002.tb01074.x
  9. Kikuchi S, Okuyama Y, Nakajima M. Nasitrema lagenorhynchus n. sp. from the larynx and lungs of a pacific striped dolphin (Nasitrematidae, Trematoda). Jpn J Parasitol 1987; 36: 42-48.
  10. Kingston SE, Rosel PE. Genetic differentiation among recently diverged delphinid taxa determined using AFLP markers. J Hered 2004; 95: 1-10. https://doi.org/10.1093/jhered/esh010
  11. Kumar V, Vercruysse J, Kageruka P, Mortelmans J. Nasitrema attenuata (Trematoda) infection of Tursiops truncatus and its potentialities as an aetiological agent of chronic pulmonary lesions. J Helminthol 1975; 49: 289-292. https://doi.org/10.1017/S0022149X00026298
  12. Neiland KA, Rice DW, Holden BL. Helminths of marine mammals, I. The genus Nasitrema, air sinus flukes of delphinid cetacea. J Parasitol 1970; 56: 305-316. https://doi.org/10.2307/3277662
  13. Ozaki Y. Trematode parasites of Indian propoise Neophocaena phocaenoides Gray. Journal of Science of the Hiroshima University, Series B, Division I (Zoology) 1935; 3: 115-138.
  14. Perrin WF. Common Dolphins, Delphinus delphis, D. capensis, and D. tropicalis. In: Perrin WF. Wursig B, Thewissen JGM. ed. Encyclopedia of Marine Mammals. Academic Press. 2002; pp, 245-248.
  15. O'Shea TJ, Homer BL, Greiner EC, Layton AW. Nasitrema sp. -associated encephalitis in a striped dolphin (Stenella coeruleoalba) stranded in the Gulf of Mexico. J Wildl Dis 1991; 27: 706-709. https://doi.org/10.7589/0090-3558-27.4.706
  16. Yamaguti S. Studies on the helminth fauna of Japan. Part 45. Trematodes of marine mammals. With 2 plates. Acta Medica Okayama 1951; 7: 283-294.