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Epidemiology of Sulcascaris sulcata (Nematoda: Anisakidae) ulcerous gastritis in the Mediterranean loggerhead sea turtle (Caretta caretta)

  • Mario SantoroEmail author
  • Erica Marchiori
  • Doriana Iaccarino
  • Barbara degli Uberti
  • Rudi Cassini
  • Fabio Di Nocera
  • Anna Cerrone
  • Giorgio Galiero
  • Federica Marcer
Helminthology - Original Paper
  • 48 Downloads

Abstract

Sulcascaris sulcata Rudolphi 1819 is a gastric nematode parasite of sea turtles. Here, we report the occurrence and describe for the first time the pathological changes caused by S. sulcata in the Mediterranean loggerhead sea turtle (Caretta caretta) stranded along the Tyrrhenian coast and northern Adriatic coast of Italy. Prevalence of infection was significantly higher in loggerhead sea turtles from the Adriatic Sea. Both prevalence and abundance of infection showed an increasing trend along with host age classes from both geographical localities. Nevertheless, while many small loggerhead sea turtles were found infected from the Adriatic Sea, only bigger individuals were infected from the Tyrrhenian Sea. The most common gross pathological change was a mucous gastritis with focal to multifocal raised ulcerous lesions roundish to irregular in shape ranging from 1 to over 20 cm in length, and cream-yellowish to greenish in color. The severity grade of gastritis increased with higher number of S. sulcata individuals. Microscopic pathological changes ranged from atrophic gastritis with heterophilic infiltration in the lamina propria to the destruction of the mucosal and sub-mucosal surfaces and necrosis. Results here obtained demonstrate that S. sulcata may cause ulcerous gastritis in both samples of loggerhead sea turtles studied from the Mediterranean Sea. Observed differences in S. sulcata infection among the different host age classes and between the two studied basins are likely linked to the differences of regional habitat and intermediate prey host availability.

Keywords

Ascaridoidea Nematode parasite Pathological changes Parasitic gastritis Sea turtle Mediterranean Sea 

Notes

Acknowledgments

We thank Dr. Lisa Poppi for precious collaboration in getting samples and pictures during the necropsies of the sea turtles from the Adriatic Sea and Giuseppe Di Vincenzo for assembling the figures of the manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Mario Santoro
    • 1
    Email author
  • Erica Marchiori
    • 2
  • Doriana Iaccarino
    • 1
  • Barbara degli Uberti
    • 1
  • Rudi Cassini
    • 2
  • Fabio Di Nocera
    • 1
  • Anna Cerrone
    • 1
  • Giorgio Galiero
    • 1
  • Federica Marcer
    • 2
  1. 1.Istituto Zooprofilattico Sperimentale del MezzogiornoPorticiItaly
  2. 2.Department of Animal Medicine, Production and HealthUniversity of PadovaLegnaroItaly

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