Cross-infection experiments confirm the host specificity of Goussia spp. (Eimeriidae: Apicomplexa) parasitizing cyprinid fish

K. Molnár, Györgyi Ostoros, F. Baska

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The host specificity of the coccidian Goussia carpelli (Léger et Stankovitch, 1921) (Eimeriidae: Apicomplexa) was studied in aquarium experiments. Oocysts were obtained from the gut of 1- to 2-year-old common carp intensively infected with Goussia carpelli. These oocysts were mixed into mud containing infection-free oligochaetes (Tubifex tubifex and Limnodrilus hoffmeisteri). Laboratory-cultured fish demonstrated to be infection free were infected by feeding oligochaetes. The susceptibility of 3-5 cm long fingerlings of 8 fish species [common carp (Cyprinus carpio), goldfish (Carassius auratus), barbel (Barbus barbus), bleak (Alburnus alburnus), roach (Rutilus rutilus), bream (Abramis brama), white bream (Blicca bjoerkna) and vimba (Vimba vimba)] was experimentally evaluated. In the gut of common carp, intensive infection developed each of eight experiments, and oocysts were consistently detectable in the faeces and gut scrapings on days 11-20 after feeding the fish with the oligochaetes. At the same time, oocyst formation could not be demonstrated in the gut of the other seven cyprinids. In another experiment of similar design, only the goldfish could be infected with oocysts obtained from naturally infected goldfish, and no infection was established in the common carp. The results of these experiments suggest that G. carpelli is strictly specific to common carp, while Carassius species most closely related to the common carp are parasitised by a distinct species of Goussia with which it shares morphological similarity.

Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalActa Protozoologica
Volume44
Issue number1
Publication statusPublished - Feb 2005

Fingerprint

Eimeriidae
Goussia
Apicomplexa
cross infection
Carps
Host Specificity
host specificity
Cross Infection
Cyprinus carpio
Oocysts
Fishes
parasitism
Cyprinidae
oocysts
Goldfish
fish
Oligochaeta
goldfish
digestive system
Blicca bjoerkna

Keywords

  • Apicomplexa
  • Coccidia
  • Cyprinid fishes
  • Experimental infection
  • Goussia carpelli
  • Goussia sp.
  • Oligochaetes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Agricultural and Biological Sciences (miscellaneous)
  • Microbiology

Cite this

Cross-infection experiments confirm the host specificity of Goussia spp. (Eimeriidae : Apicomplexa) parasitizing cyprinid fish. / Molnár, K.; Ostoros, Györgyi; Baska, F.

In: Acta Protozoologica, Vol. 44, No. 1, 02.2005, p. 43-49.

Research output: Contribution to journalArticle

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abstract = "The host specificity of the coccidian Goussia carpelli (L{\'e}ger et Stankovitch, 1921) (Eimeriidae: Apicomplexa) was studied in aquarium experiments. Oocysts were obtained from the gut of 1- to 2-year-old common carp intensively infected with Goussia carpelli. These oocysts were mixed into mud containing infection-free oligochaetes (Tubifex tubifex and Limnodrilus hoffmeisteri). Laboratory-cultured fish demonstrated to be infection free were infected by feeding oligochaetes. The susceptibility of 3-5 cm long fingerlings of 8 fish species [common carp (Cyprinus carpio), goldfish (Carassius auratus), barbel (Barbus barbus), bleak (Alburnus alburnus), roach (Rutilus rutilus), bream (Abramis brama), white bream (Blicca bjoerkna) and vimba (Vimba vimba)] was experimentally evaluated. In the gut of common carp, intensive infection developed each of eight experiments, and oocysts were consistently detectable in the faeces and gut scrapings on days 11-20 after feeding the fish with the oligochaetes. At the same time, oocyst formation could not be demonstrated in the gut of the other seven cyprinids. In another experiment of similar design, only the goldfish could be infected with oocysts obtained from naturally infected goldfish, and no infection was established in the common carp. The results of these experiments suggest that G. carpelli is strictly specific to common carp, while Carassius species most closely related to the common carp are parasitised by a distinct species of Goussia with which it shares morphological similarity.",
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