Polar Biology

, Volume 41, Issue 12, pp 2615–2619 | Cite as

Increased occurrence of the jellyfish Periphylla periphylla in the European high Arctic

  • Maxime GeoffroyEmail author
  • Jørgen Berge
  • Sanna Majaneva
  • Geir Johnsen
  • Tom J. Langbehn
  • Finlo Cottier
  • Aksel Alstad Mogstad
  • Artur Zolich
  • Kim Last
Short Note


The jellyfish Periphylla periphylla, which can have strong ecological impacts on its environment, is ubiquitous in the Norwegian Sea and its range was predicted to extend northwards. The occurrence of P. periphylla in the northern Barents Sea increased since 2014 and, for the first time, several individuals were collected within a high Arctic fjord (> 78°N) in western Spitsbergen in January 2017. The low solar irradiance prevailing during the polar night and an increased inflow of relatively warm Atlantic water in the European Arctic since the last decade likely provide suitable conditions for the medusa to colonize Svalbard’s fjords during the winter months. However, light avoidance constrains the photophobic P. periphylla to deeper offshore areas during the midnight sun period. The current occurrence of P. periphylla in high Arctic fjords during the polar night will have a limited impact on marine ecosystems in the short term, but long-term effects are more uncertain if its abundance continues to increase.


Helmet jellyfish Polar night Arctic Ocean Barents Sea Svalbard Borealization 



Pedro de la Torre and Daniel Vogedes provided logistic supports. Elena Eriksen provided valuable information regarding IMR samples. Bodil Bluhm, Marine Cusa, Néstor Santana Hernandez, Janne Søreide, and Malin Daase contributed to sampling in 2017. Calum Bachell, Dora Marie Alvsvåg, Øystein Sture, Kertu Liis Krigul, Jonathan Björklund contributed to fieldwork in January 2017 through the University Center in Svalbard course AB334/834. A particular thanks to Colin Griffiths for overseeing the collection of mooring data in Kongsfjorden since 2002.


The study was co-funded by two projects supported by the Research Council of Norway (NFR): Arctic ABC (#244319) and AMOS (#223254), and by the Norwegian Biodiversity Information Centre project GooseAlien (#47-15-70184235). The mooring work was supported by the UK Natural Environment Research Council Oceans 2025 and Northern Sea Program with further support from NFR projects Circa (#214271), Cleopatra (#178766), Cleopatra II (#216537), and Marine Night (#226471). TJL acknowledges funding through the MARmaED project that received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 675997. This study is a contribution towards the ARCTOS research network (, the Arctic Science Partnership (, and the Ocean Frontier Institute funded through Canada’s First Research Excellence Fund. The results of this publication reflect only the authors’ view and funding agencies are not responsible for any use that may be made of the information it contains.

Compliance with ethical standards

Conflict of interests

The authors declare that they have no conflict of interests.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. This study was carried out with permission from the Governor on Svalbard and followed the strict regulations regarding health, environment and safety enforced at UNIS and UiT.

Supplementary material

300_2018_2368_MOESM1_ESM.pdf (86 kb)
Supplementary material 1 (PDF 86 kb)
300_2018_2368_MOESM2_ESM.pdf (97 kb)
Supplementary material 2 (PDF 96 kb)
300_2018_2368_MOESM3_ESM.pdf (145 kb)
Supplementary material 3 (PDF 145 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Centre for Fisheries Ecosystems ResearchMarine Institute of Memorial University of NewfoundlandSt. John’sCanada
  2. 2.Department of Arctic and Marine BiologyUiT The Arctic University of NorwayTromsøNorway
  3. 3.University Centre in SvalbardLongyearbyenNorway
  4. 4.Department of Biology, Centre for Autonomous Marine Operations and Systems (AMOS)Norwegian University of Science and TechnologyTrondheimNorway
  5. 5.Department of Biological SciencesUniversity of BergenBergenNorway
  6. 6.Scottish Association for Marine ScienceObanUK
  7. 7.Department of Engineering Cybernetics, Centre for Autonomous Marine Operations and Systems (AMOS)Norwegian University of Science and TechnologyTrondheimNorway

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