Folia Parasitologica 50[3] 190-194 (2003) | DOI: 10.14411/fp.2003.034

Myxidium biliare sp. n. (Myxozoa) from gall bladder of Galaxias maculatus (Osmeriformes: Galaxiidae) in Patagonia (Argentina)

Gustavo P. Viozzi, Verónica R. Flores
Laboratorio de Parasitología, Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, Quintral 1250, (8400) San Carlos de Bariloche, Río Negro, Argentina

Myxidium biliare sp. n., a new myxosporean species parasitizing the gall bladder of Galaxias maculatus (Jenyns), in Patagonia, is described. Its coelozoic plasmodia were floating free in the bile. Spores are fusiform 13.7 ± 0.9 µm long and 6.9 ± 0.6 µm wide, with rounded ends in frontal view and slightly pointed ends in sutural view; shell with ridges and sinuous sutural line. Both maximum prevalence and maximum percentage of immature plasmodia occurred in summer. In winter the prevalence and the percentage of immature plasmodia fell to their lowest values. Prevalence was independent of host sex but increased with host length. Prevalence in 15 Patagonian Andean lakes (situated from 39°25'S to 41°30'S) ranged between 4.2% and 70%.

Keywords: Myxidium biliare, Myxosporea, Galaxias maculatus, fish, Patagonia, Argentina

Received: September 2, 2002; Accepted: January 10, 2003; Published: September 1, 2003  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Viozzi, G.P., & Flores, V.R. (2003). Myxidium biliare sp. n. (Myxozoa) from gall bladder of Galaxias maculatus (Osmeriformes: Galaxiidae) in Patagonia (Argentina). Folia Parasitologica, 50(3), 190-194. doi: 10.14411/fp.2003.034
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. ALVAREZ PELLITERO P., SITJA BOBADILLA A. 1993: Ceratomyxa spp. (Protozoa: Myxosporea) infection in wild and cultured sea bass, Dicentrarchus labrax from Spanish Mediterranean area. J. Fish Biol. 42: 889-901 Go to original source...
    2. BARRIGA J.P., BATTINI M., MACCHI P., MILANO D., CUSSAC V. 2002: Spatial and temporal distribution of landlocked Galaxias maculatus and Galaxias platei (Pisces: Galaxiidae) in a lake in the South American Andes. N. Z. J. Mar. Freshwater Res. 36: 345-359 Go to original source...
    3. BENAJIBA M.H., MARQUES A. 1993: The alternation of actinomyxidian and myxosporidian sporal forms in the development of Myxidium giardi (parasite of Anguilla anguilla) through oligochaetes. Bull. Eur. Assoc. Fish Pathol. 13: 100-103
    4. CANNING E., CURRY A., ANDERSON C., OKAMURA B. 1999: Ultrastructure of Myxidium trachinorum sp. nov. from the gallbladder of the lesser weever fish Echiichthys vipera. Parasitol. Res. 85: 910-919 Go to original source... Go to PubMed...
    5. CONE D.K. 1994: Annual cycle of Henneguya doori (Myxosporea) parasitizing yellow perch (Perca flavescens). J. Parasitol. 80: 900-904 Go to original source... Go to PubMed...
    6. CONOVER W.J. 1980: Practical Nonparametric Statistics. 2nd Ed. John Wiley & Sons, New York, 493 pp
    7. DIAMANT A. 1997: Fish-to-fish transmission of a marine myxosporean. Dis. Aquat. Org. 30: 99-105 Go to original source...
    8. DIAMANT A., LOMJ., DYKOVA I. 1994: Myxidium leei n. sp., a pathogenic myxosporean of cultured sea bream Sparus aurata. Dis. Aquat. Org. 20: 137-141 Go to original source...
    9. FLORES V., VIOZZI G.P. 2001: Redescription, seasonality and distribution of Myxobolus magellanicus (Myxosporea) in Galaxias maculatus (Osmeriformes, Galaxiidae) from Patagonian Andean lakes (Argentina). Acta Parasitol. 46: 159-163
    10. HINE P.M. 1976: Myxobolus iucundus n. sp. (Sporozoa, Myxosporidea) parasitic in Galaxias maculatus (Jenyns, 1842). J. R. Soc. N. Z. 2: 157-161 Go to original source...
    11. KALAVATI C., BRICKLE P., MacKENZIE K. 2000: Two new species of myxozoan parasites (Myxosporea, Multivalvulida, Bivalvulida) from fishes of the Falkland Islands. Acta Parasitol. 45: 285-288
    12. LOMJ., ARTHUR R. 1989: A guideline for the preparation of species descriptions in Myxosporea. J. Fish Dis. 12: 151-156 Go to original source...
    13. LOMJ., DYKOVA I. 1992: Protozoan Parasites of Fishes. Developments in Aquaculture and Fisheries Science, Vol. 26. Elsevier, London, UK, 315 pp
    14. MOLNAR K. 1998: Taxonomic problems, seasonality and histopathology of Henneguya creplini (Myxosporea) infection of pikeperch Stizostedion lucioperca in Lake Balaton. Folia Parasitol. 45: 261-269. Go to PubMed...
    15. PINTO C. 1928: Myxosporideos e outros protozoarios intestinaes de peixes observados na America do Sul. Arch. Inst. Biol. 1: 101-140
    16. SZIDAT L. 1953: Einige neue Arten der Familie Myxobolidae Thelohan (Protozoa, Klasse Sporozoa) aus Suesswasser-fischen Argentiniens. Gewaesser und Abwaesser 5: 7-16 Go to PubMed...
    17. VIOZZI G.P. 1996: Presencia de protozoos parasitos en peces autoctonos de Patagonia Argentina. Bol. Chil. Parasitol. 51: 32-34 Go to PubMed...

    Return to the content