OUR SCIENCE
Discoveries from more than a decade of killer whale research
30+ Scientific publications & reports
12+ YEARS of long-term research
GLOBAL research collaborations
Featured Research
Scientific Publications
2026
Female-centred decision making and social interactions in killer whales revealed by drone-based observations.
Veys M.L., Jourdain E., O’Callaghan S., Berthier J., & Freitas, C.
Animal Behaviour · 2026
Advancing amino acid isotope‐inferred trophic ecology in an apex predator
Jourdain E., McKinney M. A., Remili A., et al.
Ecology and Evolution · 2026
Comparing polychlorinated n-alkane occurrence and biomagnification with legacy contaminants in a killer whale food web.
Andvik C., Fagerlund C., Jourdain E., et al.
Environmental Research · 2026
An Assessment of Allelic and SNP Bias in a Genome‐Wide SNP Enrichment Kit for Killer Whales.
Baumgartner C. D., Filatova O. A., Foote A. D., et al.
Ecology and Evolution · 2026
Disease Investigation in Norwegian Killer Whales (Orcinus orca): Challenges and Needs for Improving Free-Living Cetacean Health Assessments.
Costa H., Rikardsen A. H., Blanchet M. A., et al.
The Journal of Wildlife Diseases · 2026
Last Calls of an Out-of-Habitat Killer Whale (Orcinus orca) in the Seine River.
Pernel L., Selbmann A., Jourdain E., & Curé, C.
Aquatic Mammals · 2026
2025
Deep breath out: molecular survey of selected pathogens in blow and skin biopsies from North Atlantic cetaceans.
Costa H., Ramstedt P., Bergsma M., et al.
BMC Veterinary Research · 2025
An Alien in the Arctic: Risso's Dolphins (Grampus griseus) in Northern Norwegian Waters.
Eckerle A., Morange Z., Similä T., et al.
Marine Mammal Science · 2025
Spatially coordinated predation with division of labor increases feeding success in killer whales.
Domenici P., Johansen J. L., Karoliussen R., et al.
Current Biology · 2025
Kinship clustering within an ecologically diverse killer whale metapopulation.
Baumgartner C. D., Jourdain E., Bonhoeffer S., et al.
Heredity · 2025
2024
Intercorrelations of chlorinated paraffins, dechloranes and legacy POPs in 10 species of marine mammals from Norway, in light of dietary niche.
Andvik C., Jourdain E., Borgen A., et al.
Environmental Science & Technology · 2024
Social and genetic connectivity despite ecological variation in a killer whale network.
Jourdain E., Karoliussen R., Fordyce Martin S. L., et al.
Proceedings of the Royal Society B · 2024
Phthalate contamination in marine mammals off the Norwegian coast.
Andvik C., Bories P., Harju M., et al.
Marine Pollution Bulletin · 2024
2023
DNA methylation networks underlying mammalian traits.
Haghani A., Li C. Z., Robeck T. R., et al.
Science · 2023
Quantitative fatty acid signature analysis reveals a high level of dietary specialization in killer whales across the North Atlantic.
Remili A., Dietz R., Sonne C., et al.
Journal of Animal Ecology · 2023
2022
Feces DNA analyses track the rehabilitation of a free-ranging beluga whale.
Günther B., Jourdain E., Rubincam L., et al.
Scientific Reports · 2022
Feeding characteristics and prey profitability in five herring feeding killer whales (Orcinus orca) in northern Norway.
Matika A. F., Jourdain E., Cade D. E., et al.
Marine Mammal Science · 2022
2021
Multi-species and multi-tissue methylation clocks for age estimation in toothed whales and dolphins.
Robeck T. R., Fei Z., Lu A. T., et al.
Communications biology · 2021
Killer whale (Orcinus orca) population dynamics in response to a period of rapid ecosystem change in the eastern North Atlantic.
Jourdain E., Goh T., Kuningas S., et al.
Ecology and Evolution · 2021
Natural Entrapments of Killer Whales (Orcinus orca): A Review of Cases and Assessment of Intervention Techniques.
Jourdain E, Barrett-Lennard L.G., Ellis G.M., et al.
Frontiers in Conservation Science · 2021
High levels of legacy and emerging contaminants in killer whales (Orcinus orca) from Norway
Andvik C., Jourdain E., Lyche J. L., et al.
Environmental Toxicology and Chemistry · 2021
2020
Preying on seals pushes killer whales from Norway above pollution effects thresholds.
Andvik C., Jourdain E., Ruus A., L et al.
Scientific Reports · 2020
Isotopic niche differs between seal and fish‐eating killer whales (Orcinus orca) in northern Norway.
Jourdain E., Andvik C., Karoliussen R., et al.
Ecology and Evolution · 2020
A short note on unusual high frequency of cetacean strandings in Northern Norway.
Bjørge A, Ryeng K, Jourdain E, Wiig J.
IWC report · 2020
2019
North Atlantic killer whale Orcinus orca populations: a review of current knowledge and threats to conservation.
Jourdain E., Ugarte F., Víkingsson G. A., et al.
Mammal Review · 2019
Killer whales (Orcinus orca) feeding on lumpfish (Cyclopterus lumpus) in Northern Norway
Jourdain E., Karoliussen R., de Vos J., et al.
Marine Mammal Science · 2019
A case of natural killer whale entrapment in Northern Norway: from assessment to rescue.
Jourdain E., Karoliussen R., Curé C., et al.
Aquatic Mammals · 2019
2017
The incidence of bent dorsal fins in free-ranging cetaceans.
Alves F., Towers J. R., Baird R. W., et al.
Journal of Anatomy · 2017
Incidence of probable vertebral column deformities in Norwegian and Icelandic killer whales
Jourdain E., Samarra F. I. P., Tavares S. B. & Karoliussen, R.
Aquatic Mammals · 2017
VIEW PUBLICATION ➜
First longitudinal study of seal-feeding killer whales in Norwegian coastal waters.
Jourdain E., Vongraven D., Bisther A., & Karoliussen R.
PloS One · 2017
Humpback whale (Megaptera novaeangliae) and killer whale (Orcinus orca) feeding aggregations for foraging on herring (Clupea harengus) in Northern Norway.
Jourdain E. & Vongraven D.
Mammalian Biology · 2017