Document Detail

Ceratomyxa sparusaurati (Protozoa:Myxosporea) infections in cultured gilthead sea bream Sparus aurata (Pisces:Teleostei) from Spain: aspects of the host-parasite relationship.
MedLine Citation:
PMID:  9211504     Owner:  NLM     Status:  MEDLINE    
Ceratomyxa sparusaurati infection was studied in gilthead sea bream from different mariculture systems of Spain. Culture conditions were found to influence the infection dynamics. Total prevalences ranged from 0 in a closed system to 59.9% in a Mediterranean semi-intensive farm. Prevalence was significantly lower in summer in a restricted group from the latter system, but no clear seasonal pattern was observed in the remaining fish groups in any system. A statistically significant dependence between infection prevalence and host weight was observed in some fish groups. Different degrees of histopathological damage were noted in the infected gallbladders, mainly involving swelling, vacuolization, and sloughing of the epithelial cells. Transmission electron microscope observations of the infected tissues demonstrated a characteristic protrusion of the epithelial cell surface and mitochondrial alterations. In fish from stocks showing external disease signs and trickling mortalities, parasite stages invaded other organs and were responsible for cell-mediated host reaction and important tissue injuries. Therefore, C. sparusaurati can be considered a potential threat for some Sparus aurata-growing systems.
O Palenzuela; A Sitjà-Bobadilla; P Alvarez-Pellitero
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Parasitology research     Volume:  83     ISSN:  0932-0113     ISO Abbreviation:  Parasitol. Res.     Publication Date:  1997  
Date Detail:
Created Date:  1997-10-01     Completed Date:  1997-10-01     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8703571     Medline TA:  Parasitol Res     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  539-48     Citation Subset:  IM    
Instituto de Acuicultura de Torre la Sal (CSIC), Castellón, Spain.
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MeSH Terms
Body Weight
Fish Diseases / parasitology*
Host-Parasite Interactions
Perciformes / parasitology*
Protozoan Infections / parasitology
Protozoan Infections, Animal*

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