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Evaluation of Potential Transfer of the Pathogen Saprolegnia parasitica between Farmed Salmonids and Wild Fish
- Source :
- Pathogens, Vol 10, Iss 926, p 926 (2021), Digital.CSIC. Repositorio Institucional del CSIC, instname, Pathogens, Volume 10, Issue 8
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Saprolegnia infections are among the main parasitic diseases affecting farmed salmonids. The distribution and potential transfer of Saprolegnia spp. between farms and the natural environment has been scarcely investigated. Therefore, this work aimed to study the diversity and abundance of oomycete species in salmonid farms, tributary water, and effluent water systems. Four trout farms in Italy and two Atlantic salmon farms in Scotland were considered. In Italian farms, 532 isolates of oomycetes were obtained from fish and water, at upstream, inside, and downstream the farms. In Scottish farms, 201 oomycetes isolates were obtained from water outside the farm and from fish and water inside the farming units. Isolates were identified to the species level through amplification and sequencing of the ITS rDNA region. In Italy, S. parasitica was significantly more present in farmed than in wild fish, while in water it was more frequently isolated from the wild, particularly in effluent systems, not associated with more frequent isolation of S. parasitica in wild fish downstream the farm. In Scotland, S. parasitica was the most prevalent species isolated from fish, while isolates from water were mostly Pythium spp. with few S. parasitica isolates from upstream and downstream the farms.<br />European Union’s Horizon 2020 research and innovation programme under grant agreement No. 634429
- Subjects :
- Microbiology (medical)
Veterinary medicine
animal diseases
Salmo salar
Saprolegnia parasitica
Upstream and downstream (DNA)
03 medical and health sciences
Salmo marmoratus
Salmonid farm
Salmo trutta
Immunology and Allergy
14. Life underwater
Pythium
Molecular Biology
Effluent
030304 developmental biology
Oomycete
0303 health sciences
General Immunology and Microbiology
biology
business.industry
04 agricultural and veterinary sciences
Saprolegnia
Salmo marmoratu
biology.organism_classification
Trout
Infectious Diseases
Italy
Scotland
Oncorhynchus mykiss
salmonid farms
Agriculture
040102 fisheries
Medicine
0401 agriculture, forestry, and fisheries
Rainbow trout
business
Oncorhynchus myki
Subjects
Details
- ISSN :
- 20760817
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Pathogens
- Accession number :
- edsair.doi.dedup.....51a2aa52aedc54ab54b59626aba5ac77