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Jessica Louise Ray

Senior Researcher

+47 56 10 74 37
Nygårdsgaten 112, 5008 Bergen, Norway

My research interests lie in integrated use of quantitative (qPCR and droplet digital PCR) and qualitative (NGS) molecular methods for investigation of micro- and meso-scale trophic interactions in pelagic and coastal marine environments. My current research activity includes basic and applied research projects that utilize a variety of molecular tools to characterize and quantify (1) trophic interactions between marine viruses and zooplankton, (2) changes in marine sediment biological diversity as an indicator of impacts from offshore petroleum activity and (3) ancient sedimentary DNA (sedaDNA) in marine sediments as a new proxy for past sea ice reconstructions in the Arctic, (4) predation pressure in marine food webs and (5) the utility of environmental DNA (eDNA) as a tracer for keystone organisms in aquatic ecosystem. I am experienced with design of, participation in and coordination of laboratory and field-scale experiments, including seawater mesocosms and research cruises. I am equally comfortable using both written and spoken English and Norwegian as workplace languages.

Jessica Louise Ray


Climate & Environment

Research Groups

Molecular Ecology and Paleogenomics - MEP

More information about Jessica

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Environmental DNA reveals spatial patterns of fish and plankton diversity at a floating offshore wind farm – Environmental DNA 2023
Sedimentary ancient DNA: a new paleogenomic tool for reconstructing the history of marine ecosystems – Frontiers in Marine Science 2023
Maximizing sampling efficiency to detect differences in fish community composition using environmental DNA metabarcoding in subarctic fjords – Environmental DNA 2023
The Use of eDNA to Monitor Pelagic Fish in Offshore Floating Wind Farms – Oceanography 2023
Getting to the core of sea-ice reconstructions: Tracing Arctic sea ice using sedimentary ancient DNA – Pages Magazine 2022
Environmental DNA monitoring of pelagic fish fauna at the Hywind Scotland floating wind energy installation – A pilot study – NORCE Norwegian Research Centre 2022
Arctic Paleoceanography Cruise KH21-234 with R/V Kronprins Haakon – NORCE Norwegian Research Centre 2022
Environmental DNA monitoring of pelagic fish fauna at the Hywind Scotland floating wind energy installation – A pilot study – NORCE Norwegian Research Centre 2022
MetaMon final project report - High-throughput metabarcoding of eukaryotic diversity for environmental monitoring of marine sediments – NORCE Norwegian Research Centre 2021
Removal of large viruses and their dispersal through fecal pellets of the appendicularian Oikopleura dioica during Emiliania huxleyi bloom conditions – Limnology and Oceanography 2021
Going to extremes - A metagenomic journey into the dark matter of life – FEMS Microbiology Letters 2021
Kunnskapsstatus for bruk av molekylære verktøy i kartlegging og overvåkning av biologisk mangfold i marine miljø – Miljødirektoratet 2021
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure – Scientific Reports 2021
Implementation of Environmental DNA (eDNA) as a Tool for Ecosystem-Based Fisheries Management – U.S. Department of Commerce, NOAA 2020
Quantification of eDNA to map the distribution of cold-water coral reefs – Frontiers in Marine Science 2020
Influence of nutrient availability on Arctic sea ice diatom HBI lipid synthesis – Organic Geochemistry 2020
The potential of sedimentary ancient DNA for reconstructing past sea ice evolution – The ISME Journal 2019
Seasonality drives microbial community structure, shaping both eukaryotic and prokaryotic host–viral relationships in an Arctic marine ecosystem – Viruses 2018
Antimicrobial Resistance in Selected Environments in Norway: Occurrence of Antimicrobial resistant bacteria (ARB) and antimicrobial resistant genes (ARG) associated with wastewater treatment plants (WWTPs) – Miljødirektoratet 2017
Viruses on the menu: The appendicularian Oikopleura dioica efficiently removes viruses from seawater – Limnology and Oceanography 2017
Viruses on the menu: The appendicularian Oikopleura dioica efficiently removes viruses from seawater – Limnology and Oceanography 2017
Iron availability modulates the effects of future CO2 levels within the marine planktonic food web – Marine Ecology Progress Series 2017
Antimicrobial resistance in selected environments in Norway M-736/2017 – Genøk-Senter for biosikkerhet 2017
Metabarcoding and metabolome analyses of copepod grazing reveal feeding preference and linkage to metabolite classes in dynamic microbial plankton communities – Molecular Ecology 2016
Molecular gut content analysis demonstrates that Calanus grazing on Phaeocystis pouchetii and Skeletonema marinoi is sensitive to bloom phase but not prey density – Marine Ecology Progress Series 2016
Norwegian deep-water coral reefs: cultivation and molecular analysis of planktonic microbial communities – Environmental Microbiology 2015
Top-down and bottom-up control on bacterial diversity in a western Norwegian deep-silled fjord – FEMS Microbiology Ecology 2015
Virus infection of Haptolina ericina and Phaeocystis pouchetii implicates evolutionary conservation of programmed cell death induction in marine haptophyte-virus interactions – Journal of Plankton Research 2014
Effect of increased pCO2 on bacterial assemblage shifts in response to glucose addition in Fram Strait seawater mesocosms – FEMS Microbiology Ecology 2012
Finding a needle in the virus metagenome haystack - micro-metagenome analysis captures a snapshot of the diversity of a bacteriophage armoire – PLOS ONE 2012
Horizontal gene transfer: the uptake of extracellular DNA in bacteria – 2012
Two new subfamilies of DNA mismatch repair proteins (MutS) specifically abundant in the marine environment – The ISME Journal 2011
Impact of long-term fertilization practices on the abundance and composition of soil bacterial communities in Northeast China – Agriculture, Ecosystems & Environment. Applied Soil Ecology 2010
Unweathered wood biochar impact on nitrous oxide emissions from a bovine-urine-amended pasture soil – Soil Science Society of America Journal 2010
Impact of bovine urine deposition on soil microbial activity, biomass and structure – Agriculture, Ecosystems & Environment. Applied Soil Ecology 2010
Horizontal Gene Transfer: Uptake of Extracellular DNA by Bacteria – 2009
Sexual Isolation in Acinetobacter baylyi Is Locus-Specific and Varies 10,000-Fold Over the Genome – Genetics 2009
Hippuric acid and benzoic acid inhibition of urine derived N2O emissions from soil – Global Change Biology 2009
An assessment of the potential of herbivorous insect gut bacteria to develop competence for natural transformation – Environmental Biosafety Research 2007
Assessment of transformability of bacteria associated with tomato and potato plants – Environmental Biosafety Research 2007
Experimental methods for assaying natural transformation and inferring horizontal gene transfer – Methods in Enzymology 2005
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