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Suspected Viral Erythrocytic Necrosis (Ven) in the Inter-Tidal Fish Mauligobius Maderensis from Madeira, Portugal

Published online by Cambridge University Press:  11 May 2009

J.C. Eiras
Affiliation:
Instituto de Zoologia, Faculdade de Ciencias, Universidade do Porto, 4050 Porto, Portugal.
G. Costa
Affiliation:
Centro de Ciencias Biologicas e Geologicas, Universidade da Madeira, Funchal, Portugal.
M. Biscoito
Affiliation:
Museu Municipal do Funchal, Funchal, Portugal.
A.J. Davies
Affiliation:
Kingston University, School of Life Sciences, Kingston, Surrey.

Extract

Suspected viral erythrocytic necrosis (VEN) was detected in two specimens of the intertidal fish Mauligobius maderensis (Teleostei: Gobiidae) from Madeira, Portugal. While one host was lightly infected, the other showed intraerythrocytic cytoplasmic inclusions within all mature erythrocytes examined. The inclusions were round to oval, 0·8–2·0 μm in diameter, and most were associated with dense eosinophilic granular areas of various sizes and shapes. Up to three of these granular regions accompanied each inclusion body, but they were sometimes widely separated from it. In a number of infected erythrocytes, a granular halo was observed surrounding the nucleus. The cytoplasm enclosed by the halo often had a different refringence from that outside. None of the 120 other fishes examined from Madeira, representing 43 species of intertidal, pelagic, and deep-sea origin, had detectable infections.

Type
Short Communications
Copyright
Copyright © Marine Biological Association of the United Kingdom 1996

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References

Clifton-Hadley, R.S., Richards, R.H. & Bucke, D., 1987. Further consideration of the haematology of proliferative kidney disease (PKD) in rainbow trout, Salmo gairdneri Richardson. Journal of Fish Diseases, 10, 435444.Google Scholar
Davies, A.J., 1982. Further studies on Haemogregarina bigemina Laveran & Mesnil, the marine fish Blennius pholis L., and the isopod Gnathia maxillaris Montagu. Journal of Protozoology, 29, 576583.Google Scholar
Eiras, J.C., 1983. Erythrocyte degeneration in the European eel (Anguilla anguilla L.). Bulletin of the European Association of Fish Pathologists, 3, 1820.Google Scholar
Eiras, J.C., 1984. Virus infection of marine fish: prevalence of viral erythrocytic necrosis (VEN) in Mugil cephalus L., Blennius pholis L. and Platichthys flesus L. in the coastal waters of Portugal. Bulletin of the European Association of Fish Pathologists, 4, 5256.Google Scholar
Eiras, J.C., 1990. Observations on erythrocyte abnormalities in fish. Bulletin of the European Association of Fish Pathologists, 10, 64—68.Google Scholar
Evelyn, T.P.T. & Traxler, G.S., 1978. Viral erythrocytic necrosis: natural occurrence in Pacific salmon and experimental transmission. Journal of the Fisheries Research Board of Canada, 35, 903907.Google Scholar
Gutierrez, M., Sarasquete, M.C. & Alvarez Pellitero, M.P., 1985. Sobre un caso de necrosis eritrocitica en Halobatrachus didactylus (Schneider, 1810) (Teleostei, Batrichidae) de la Bahia de Cadiz. Investigation Pesquera. Barcelona, 49, 559566.Google Scholar
Johnston, M.R.L. & Davies, A.J., 1973. A pirhemocyton-like parasite of the blenny, Blennius pholis L. (Teleostei: Blenniidae) and its relationship to Immanoplasma Neumann, 1909. International Journal of Parasitology, 3, 235241.Google Scholar
Laird, M. & Bullock, W.L., 1969. Marine fish hematozoa from New Brunswick and New England. Journal of the Fisheries Research Board of Canada, 26, 10751102.Google Scholar
Langeron, M., 1942. Precis de microscopic Paris: Masson et Cie.Google Scholar
Macmillan, J.R., Mulcahy, D. & Landolt, M., 1980. Viral erythrocytic necrosis: some physiological consequences of infection in chum salmon (Oncorhynchus keta). Canadian Journal of Fisheries and Aquatic Sciences, 37, 799804.Google Scholar
Meyers, T.R., Hauck, A.K., Blankenbeckler, W.D. & Minicucci, T., 1986. First report of viral erythrocytic necrosis in Alaska, USA, associated with epizootic mortality in Pacific herring, Clupea harengus pallasi (Valenciennes). Journal of Fish Diseases, 9, 479491.Google Scholar
Pilarczyck, A., 1977. Haematological and histological changes in carp with necrotic gill disease (Branchionecrosis cyprinorum). Acta Hydrobiologica, 19, 922.Google Scholar
Pinto, R.M., Alvarez-Pellitero, P., Bosch, A. & Jofre, J., 1989. Occurrence of a viral erythrocytic infection in the Mediterranean Sea bass, Dicentrarchus labrax (L.). Journal of Fish Diseases, 12, 185191.Google Scholar
Reno, P.W. & Nicholson, B.L., 1980. Viral erythrocytic necrosis (VEN) in Atlantic cod (Gadus morhua): in vitro studies. Canadian Journal of Fisheries and Aquatic Sciences, 37, 22762281.Google Scholar
Reno, P.W. & Nicholson, B.L., 1981. Ultrastructure and prevalence of viral erythrocytic necrosis (VEN) virus in Atlantic cod, Gadus morhua L., from the northern Atlantic Ocean. Journal of Fish Diseases, 4, 361370.Google Scholar
Sherburne, S.W. & Bean, L.L., 1979. Incidence and distribution of piscine erythrocytic necrosis and the microsporidian, Glugea hertwigi, in rainbow smelt, Osmerus mordax, from Massachusetts to the Canadian maritimes. Fishery Bulletin. Fish and Wildlife Service. Washington, DC, 77, 503509.Google Scholar
Smail, D.A. & Egglestone, S.I., 1980. Virus infections of marine fish erythrocytes: prevalence of piscine erythrocytic necrosis in cod Gadus morhua L. and the blenny Blennius pholis L. in coastal and offshore waters of the United Kingdom. Journal of Fish Diseases, 3, 4146.Google Scholar
Smail, D.A. & Munro, A.L.S., 1989. The virology of teleosts. In Fish pathology, 2nd ed. (ed. R.J., Roberts), pp. 173241. London: Balliere Tindall.Google Scholar
Walker, R. & Sherburne, S.W., 1977. Piscine erythrocytic necrosis virus in Atlantic cod, Gadus morhua, and other fish: ultrastructure and distribution. Journal of the Fisheries Research Board of Canada, 34, 11881195.Google Scholar