Jamie Downes

ORCID: 0000-0003-0812-1723
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About
Contact & Profiles
Research Areas
  • Parasite Biology and Host Interactions
  • Aquaculture disease management and microbiota
  • Myxozoan Parasites in Aquatic Species
  • Identification and Quantification in Food
  • Insect and Pesticide Research
  • Microbial infections and disease research
  • Fish Ecology and Management Studies
  • Physiological and biochemical adaptations
  • Aquaculture Nutrition and Growth
  • Water Quality Monitoring and Analysis
  • Fecal contamination and water quality
  • Water Quality Monitoring Technologies
  • Leech Biology and Applications
  • Environmental Toxicology and Ecotoxicology
  • Parasitic Infections and Diagnostics

Marine Institute
2015-2023

Galway-Mayo Institute of Technology
2015-2018

AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 7:239-251 (2015) - DOI: https://doi.org/10.3354/aei00150 A longitudinal study of amoebic gill disease on a marine Atlantic salmon farm utilising real-time PCR assay for detection Neoparamoeba perurans J. K. Downes1,2,*, Henshilwood1, E. M. Collins1, A. Ryan3, I. O’Connor2, H. D. Rodger4, MacCarthy2, N....

10.3354/aei00150 article EN cc-by Aquaculture Environment Interactions 2015-09-11

Abstract Gill diseases are a complex and multifactorial challenge for marine farmed Atlantic salmon. Co‐infections with putative pathogens common on farms; however, there is lack of knowledge in relation to the potential effect co‐infections may have pathology. The objective this study was determine prevalence effects Neoparamoeba perurans, Desmozoon lepeophtherii , Candidatus Branchiomonas cysticola, Tenacibaculum maritimum salmon gill poxvirus ( SGPV ) during longitudinal farm. Real‐time...

10.1111/jfd.12814 article EN Journal of Fish Diseases 2018-05-27

Amoebic gill disease (AGD) caused by Neoparamoeba perurans, has emerged in Europe as a significant problem for the Atlantic salmon farming industry. Gross score is most widely used and practical method determining AGD severity on farms informing management decisions mitigation strategies. As molecular diagnosis of remains high priority much international industry, there need to evaluate suitability currently available assays conjunction with appropriate non-destructive sampling methodology....

10.3389/fmars.2017.00061 article EN cc-by Frontiers in Marine Science 2017-03-02

The gill mucosal microbiome of Atlantic salmon has a significant impact on health and physiology under homeostatic conditions, but the microbial community may itself be influenced by host genetics, culture system seawater transfer. In this study, two commercial strains salmon, reared in parallel hatchery systems (flow-through -FT recirculation -RAS) was investigated. Samples microbiome, tank biofilm water were collected from fish cohorts at hatcheries following Though commercially equivalent...

10.1016/j.aquaculture.2023.740322 article EN cc-by-nc Aquaculture 2023-11-07

AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 11:405-415 (2019) - DOI: https://doi.org/10.3354/aei00325 Prevalence of six amoeba species colonising gills farmed Atlantic salmon with amoebic gill disease (AGD) using qPCR Chloe J. English1,2,*, Fiona Swords3, Jamie K. Downes3, Neil M. Ruane3, Natasha A. Botwright4, Richard S. Taylor5, Andrew C....

10.3354/aei00325 article EN cc-by Aquaculture Environment Interactions 2019-07-11

Abstract Amoebic gill disease (AGD) is emerging as one of the most significant health challenges affecting farmed Atlantic salmon in marine environment. It caused by amphizoic amoeba Neoparamoeba perurans , with infestation gills causing severe hyperplastic lesions, compromising overall integrity and function. This study used histology, transmission electron microscopy (TEM), immunohistochemistry transcript expression to relate AGD‐associated pathological changes morphology distribution...

10.1111/jfd.13073 article EN Journal of Fish Diseases 2019-08-20

Infestations by the salmon louse (Lepeophtheirus salmonis) and amoebic gill disease (AGD) are currently significant concerns facing Atlantic aquaculture industry in Ireland. Increasing seawater temperatures, move away from chemotherapeutants has prompted a new approach to researching areas of host-parasite life histories using physiology behaviour parasites develop novel control methods. Freshwater, with low ionic concentration can be used sea lice AGD but this may not always available....

10.1016/j.aqrep.2021.100703 article EN cc-by Aquaculture Reports 2021-04-21

Epitheliocystis, an intracellular bacterial infection in the gills and skin epithelium, has been frequently reported Atlantic salmon (Salmo salar) during freshwater production a number of countries. This study describes prevalence intensity natural epitheliocystis present two strains reared either flow-through (FT) or recirculation aquaculture system (RAS) Ireland. Repeated sampling prior to throughout seawater transfer, histology quantitative real-time PCR were used determine intensity....

10.1111/jfd.13694 article EN Journal of Fish Diseases 2022-08-25

DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 137:81-87 (2019) - DOI: https://doi.org/10.3354/dao03433 Genetic diversity among geographically distant isolates Neoparamoeba perurans Haakon Hansen1, Natasha A. Botwright2, Mathew T. Cook2, Alex Douglas3, Jamie Downes4, Michael D. Gallagher5,6, Neil M. Ruane4, Iveta Matejusova5,* 1Norwegian Veterinary Institute, Pb...

10.3354/dao03433 article EN Diseases of Aquatic Organisms 2019-11-01
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