2024-03-28T12:40:44Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/555662022-02-18T11:49:16Zcom_10261_47com_10261_8col_10261_300
Candidatus Xenohaliotis californiensis and Haplosporidium montforti associated with mortalities of abalone Haliotis tuberculata cultured in Europe
Balseiro, P.
Aranguren, Raquel
Gestal, C.
Novoa, Beatriz
Figueras Huerta, Antonio
Haliotis tuberculata
Abalone
Candidatus Xenohaliotis californiensis
Haplosporidium montforti
Histopathology
Withering syndrome
10 páginas, 6 figuras, 3 tablas
Haliotis tuberculata experimentally grown in Galicia (NW Spain) and originated from Ireland began to experience mortalities
during the late spring of 2004. Diseased abalone presented dark foot pigmentation, loss of surface adherence and limited ability for
right themselves after they were set on their backs. Histopathological analyses showed the presence of Candidatus Xenohaliotis
californiensis, a bacterial pathogen from the family Rickettsiaceae, in the gastrointestinal epithelial cells of diseased abalone. To our
knowledge, this is the first report of Candidatus Xenohaliotis californiensis in H. tuberculata cultured in Europe. The presence of
several stages of development of a new protozoan parasite belonging to the phylum Haplosporidia, Haplosporidium montforti,
described by us in a separate paper, was also detected in the connective tissue of gill, digestive gland and foot muscle. Complete
mortality (100% of the stock) was reached during spring and summer. PCR analyses showed that these two pathogens were already
present in juveniles from Ireland before their introduction in Galician waters. Juveniles imported from France were also infected
with both pathogens. In adult abalone collected from natural beds of the surroundings of the aquaculture facilities, only the
pathogen Candidatus Xenohaliotis californiensis was detected by PCR, but not by histology.
2012-09-05T07:52:17Z
2012-09-05T07:52:17Z
2006
artículo
Aquaculture 258(1-4): 63-72 (2006)
0044-8486
http://hdl.handle.net/10261/55566
10.1016/j.aquaculture.2006.03.046
eng
http://dx.doi.org/10.1016/j.aquaculture.2006.03.046
closedAccess
Elsevier