Prevalence of Sarcocystis sp. in stranded atlantic white-sided dolphins (Lagenorhynchus acutus)

Ruth Ewing, Julia Zaias, M. Andrew Stamper, Gregory D. Bossart, J. P. Dubey

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In January 1998 and 1999, two mass strandings of dolphins occurred in Wellfleet, Massachusetts. The strandings were composed of 97 and 53 animals, respectively. Tissues from 35 Atlantic white-sided dolphins (Lagenorhynchus acutus) from the 1998 stranding and 52 from the 1999 stranding were examined histologically. In the 1998 stranding, unidentified protozoal tissue cysts were seen in skeletal muscle from 11 of 28 (39%) dolphins. In addition, two dolphins had a protozoal tissue cyst in cardiac muscle. In the 1999 stranding, nine of 23 (39%) dolphins had the same protozoal tissue cysts in skeletal muscle. The identification of these protozoal tissue cysts as Sarcocystis sp. was confirmed by light and transmission electron microscopy. The high prevalence of sarcocysts in these dolphins suggests that they are likely intermediate hosts for previously undescribed Sarcocystis spp. The ultrastructure of the sarcocyst walls suggests that more than one species of Sarcocystis are present in dolphins.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalJournal of Wildlife Diseases
Volume38
Issue number2
StatePublished - Apr 1 2002

Fingerprint

Lagenorhynchus
Sarcocystis
Dolphins
dolphin
dolphins
stranding
cyst
Cysts
sarcocysts
muscle
skeletal muscle
mass stranding
Skeletal Muscle
intermediate host
intermediate hosts
ultrastructure
myocardium
transmission electron microscopy
Transmission Electron Microscopy
Myocardium

Keywords

  • Atlantic white-sided dolphin
  • Epidemiology
  • Lagenorhynchus acutus
  • Protozoan
  • Sarcocystis

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Prevalence of Sarcocystis sp. in stranded atlantic white-sided dolphins (Lagenorhynchus acutus). / Ewing, Ruth; Zaias, Julia; Stamper, M. Andrew; Bossart, Gregory D.; Dubey, J. P.

In: Journal of Wildlife Diseases, Vol. 38, No. 2, 01.04.2002, p. 291-296.

Research output: Contribution to journalArticle

Ewing, Ruth ; Zaias, Julia ; Stamper, M. Andrew ; Bossart, Gregory D. ; Dubey, J. P. / Prevalence of Sarcocystis sp. in stranded atlantic white-sided dolphins (Lagenorhynchus acutus). In: Journal of Wildlife Diseases. 2002 ; Vol. 38, No. 2. pp. 291-296.
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