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Matika, A. F., Jourdain, E., Cade, D. E., Karoliussen, R., and Hammond, P. S. (2022). Feeding characteristics and prey profitability in five herring feeding killer whales (Orcinus orca) in northern Norway. Marine Mammal Science 1-16. doi: 10.1111/mms.12931. Link here


Jourdain, E., Goh, T., Kuningas, S., Similä, T., Vongraven, D., Karoliussen, R., Bisther, A. and Hammond, P. S. (2021). Killer whale (Orcinus orca) population dynamics in response to a period of rapid ecosystem change in the eastern North Atlantic. Ecology and Evolution. 00, 1– 18. doi: 10.1002/ece3.8364. Link here

Jourdain, E, Barrett-Lennard LG, Ellis GM, Ford JKB, Karoliussen R, Towers JR and Vongraven D (2021). Natural Entrapments of Killer Whales (Orcinus orca): A Review of Cases and Assessment of Intervention Techniques. Frontiers in Conservation Science, 2: 707616. doi: 10.3389/fcosc.2021.707616. Link here

Robeck, T. R., Fei, Z., Lu, A. T., Haghani, A., Jourdain, E., Zoller, J. A., ... & Horvath, S. (2021). Multi-species and multi-tissue methylation clocks for age estimation in toothed whales and dolphins. Communications biology, 4(1), 1-11. doi: 10.1038/s42003-021-02179-x. Link here

Andvik, C.,  Jourdain, E., Lyche, J. L.,  Karoliussen, R., Borgå, K.  (2021). High levels of legacy and emerging contaminants in killer whales (Orcinus orca) from Norway, 2015 to 2017. Environmental Toxicology and Chemistry. doi: 10.1002/etc.5064. Link here


Andvik, C.,  Jourdain, E.,  Ruus, A., Lyche, J. L,  Karoliussen, R., Borgå, K. (2020). Preying on seals pushes killer whales from Norway above pollution effects thresholds. Scientific Reports; 10: 1-10. doi: 10.1038/s41598-020-68659-y. Link here

Jourdain, E.,  Andvik, C.,  Karoliussen, R.,  Ruus, A,  Vongraven, D.,  Borgå, K. (2020) Isotopic niche differs between seal and fish‐eating killer whales (Orcinus orca) in northern Norway. Ecology and Evolution, 10: 4115-4127. doi: 10.1002/ece3.6182. Link here


Jourdain, E., Ugarte, F., Víkingsson, G. A., Samarra, F. I. P., Ferguson S. H., Lawson, J., Vongraven, D. and Desportes, G. (2019). North Atlantic killer whale Orcinus orca populations: a review of current knowledge and threats to conservation. Mammal Review, 49: 384-400. doi: 10.1111/mam.12168. Link here

Jourdain, E., Karoliussen, R., de Vos, J., Zakharov, S. and Tougard, C. (2019). Killer whales (Orcinus orca) feeding on lumpfish (Cyclopterus lumpus) in Northern Norway. Marine Mammal Science, 36: 89-102. doi: 10.1111/mms.12618. Link here

Jourdain, E., Karoliussen, R., Curé, C., Massenet, M., Barrett-Lennard, L. and Ellis, G. (2019). A case of natural killer whale (Orcinus orca) entrapment in Northern Norway: from assessment to rescue. Aquatic Mammals, 45(1): 14-20. doi: 10.1578/AM.45.1.2019.14. Link here


Alves, F., Towers, J. R., Baird, R. W., Bearzi, G., Bonizzoni, S., Ferreira, R., Halicka, Z., Alessandrini, A., Kopelman, A. H., Yzoard, C., Rasmussen, M. H., Bertulli, C. G., Jourdain, E., Gullan, A., Rocha, D., Hupman, K., Mrusczok, M.-T., Samarra, F. I. P., Magalhães, S., Weir, C. R., Ford, J. K. B. and Dinis, A. (2017). The incidence of bent dorsal fins in free-ranging cetaceans. Journal of Anatomy. doi: 10.1111/joa.12729. Link here

Jourdain, E., Samarra, F. I. P., Tavares, S. B. and Karoliussen, R. (2017). Incidence of probable vertebral column deformities in Norwegian and Icelandic killer whales (Orcinus orca). Aquatic Mammals, 43(6): 682-690. doi: 10.1578/AM.43.6.2017.682. Link here

Jourdain, E., Vongraven, D., Bisther, A., and Karoliussen, R. (2017). First longitudinal study of seal-feeding killer whales (Orcinus orca) in Norwegian coastal watersPloS One, 12(6): e0180099. doi: 10.1371/journal.pone.0180099. Link here

Jourdain, E. and Vongraven D (2017). Humpback whale (Megaptera novaeangliae) and killer whale (Orcinus orca) feeding aggregations for foraging on herring (Clupea harengus) in Northern Norway. Mammalian Biology - Zeitschrift für Säugetierkunde, 86: 27-32. doi: 10.1016/j.mambio.2017.03.006. Link here


Jourdain, E., Andvik, C., Karoliussen, R., Tougard, C., Vongraven, D., Ruus, A., and Borgå, K. Variations in ecological niche in Norwegian killer whales (Orcinus orca) inferred from dietary descriptors and observational evidence. Poster session presented at the World Marine Mammal Conference 2019, Barcelona, Spain.

Andvik, C., Jourdain, E., Ruus, A., Lyche, J. L., Karoliussen, R., Borgå, K. Higher levels of organohalogen contaminant and mercury levels in seal-eating killer whales (Orcinus orca) than fish-eating killer whales in northern Norway. Poster session presented at the World Marine Mammal Conference 2019, Barcelona, Spain.

Jourdain, E. and Vongraven, D. (2016). Killer whale predation on pinnipeds in Northern Norway: novel insights into the ecology of Norwegian killer whales. Poster session presented at Annual Conference of the European Cetacean Society 2016, Madeira, Portugal.


Jourdain, Eve., Aasen, Vegard. B., Erdal, Olve V. & Johnsen Simon (2022). Identification Catalogue of the Killer whales that frequent inner Vestlandet. Figshare. Dataset. doi: 10.6084/m9.figshare.19350476. Link here



Bjørge A, Ryeng K, Jourdain E, Wiig J (2020) A short note on unusual high frequency of cetacean strandings in Northern Norway , 28 th March – 2 nd May 2020. IWC report SC/68B/E/06. Link here

Jourdain, E. and Karoliussen, R. Photo-Identification Catalogue of Norwegian killer whales 2007-2021. Figshare. Dataset. doi:10.6084/m9.figshare.4205226. Link to the latest version here


Jourdain, E. (2020). Dietary variations and specializations of killer whales (Orcinus orca) in Norway. Doctoral thesis. University of Oslo, Norway. Link here

Goh T. (2019). Investigating variation in survivorship of northern Norwegian killer whales from 1986-2018 during a period of rapid ecosystem change. MSc Thesis. University of St Andrews, UK.

McEnally C. (2019). The effect of dietary preference on the levels of organohalogen contaminants and mercury in Norwegian killer whales (Orcinus orca). MSc Thesis. University of Oslo, Norway.

Matika A.F.  (2019). Dive characteristics, foraging energetics and prey profitability in northern Norwegian orca. BSc Thesis. University of St Andrews, UK.

Giampaoletti E. (2018). Population dynamic and site fidelity of killer whales (Orcinus orca) in Norwegian waters during seasons 2012-2018. Bachelor Thesis. University of Bologna, Italy.

Ruusuvuori A. (2017). Fishery related injuries to cetaceans off the Norwegian coast. Bachelor Thesis. University of Halmstad, Finland.


Reckendorf A, Ludes- Wehrmeister E, Wohlsein P, Tiedemann R, Siebert U, Lehnert K (2018). First record of Halocercus sp. (Pseudaliidae) lungworm infections in two stranded neonatal orcas (Orcinus orca). Parasitology 1–5.

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