Personal profile
Research interests
What drives my research is improving fish welfare in aquaculture. This results in varied projects, that are usually focused on either salmon or lumpfish welfare.
I am also interested in bioinformatics and data analysis, and have recently taken an interest in eDNA and extracting information from large numbers of gene sequences.
Education/Academic qualification
PhD, Predator-Prey Interactions in Aquatic Environments, University of Leeds
1 Jan 2010 → 1 May 2013
Award Date: 1 Dec 2013
Master, Three-spined stickleback (Gasterosteus aculeatus) behaviour and stocking density, Manchester Metropolitan University
1 Sept 2006 → 1 Oct 2007
Award Date: 1 Dec 2007
Bachelor, Attitudes to dogs on the Faroe Islands and in the UK, University of Central Lancashire
1 Sept 2003 → 1 Jun 2006
Award Date: 1 Jun 2006
External positions
PhD Student, University of Leeds
1 Jan 2010 → 1 Dec 2013
Research Assistant, Emirates Center for the Conservation of Houbara
1 Oct 2007 → 1 Oct 2009
Keywords
- QH301 Biology
- Behavioural ecology
- Aquatic biology
- Fish behaviour
- Fish welfare
- Aquaculture
- Bioinformatics
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 2 Zero Hunger -
SDG 3 Good Health and Well-being -
SDG 8 Decent Work and Economic Growth -
SDG 9 Industry, Innovation, and Infrastructure -
SDG 12 Responsible Consumption and Production -
SDG 14 Life Below Water
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Collaborations and top research areas from the last five years
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The sea trout project
Eliasen, K. (PI), Johannesen, U. V. (CoI), Østerø, S. L. (CoI) & Johannesen, Á. (CoI)
1/01/19 → …
Project: Research
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SS: Salmon and the Surf
Johannesen, Á. (PI), Kristmundsson, J. (CoI), Klebert, P. (CoI) & Patursson, Ø. (CoI)
1/06/18 → 31/12/22
Project: Research
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The personality of lumpfish and how this affects their use as cleaner fish
Johannesen, Á. (PI), Joensen, H. (CoI), Magnussen, E. (CoI), Joensen, N. E. (CoI) & Norðberg, G. (CoI)
1/06/14 → 1/01/21
Project: Research
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Effect of plastic and seaweed shelters on the skin microbiome of lumpfish Cyclopterus lumpus used as cleaner fish in aquaculture pens
Jacobsen, Á., Mortensen, A. M., Eliasen, K., Egholm, E., Nolsøe, M. & Johannesen, Á., 3 Sept 2025, In: PloS one. 20, 9, p. 1-20 20 p., e0322261.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Føroyskir taraskógir sum uppvakstrarøki hjá upsa og toski: ein roynd at kanna sambandið millum taraskógir og hesi fiskasløg
Jacobsen, S., Jacobsen, Á., Mortensen, A. M., Johannesen, Á., Egholm, E., Hansen, J. F. & í Homrum, E., Jun 2025, 22 p. Tórshavn : Havstovan - Faroe Marine Research Institute.Research output: Other contribution
Open AccessFile70 Downloads (Pure) -
Macroalgal forests as nursery habitats for saithe and cod in the Faroe Islands (English version)
Jacobsen, S., Jacobsen, Á., Mortensen, A. M., Johannesen, Á., Egholm, E., Hansen, J. F. & í Homrum, E., Jun 2025, 18 p. Tórshavn : Havstovan - Faroe Marine Research Institute.Research output: Other contribution
Open AccessFile107 Downloads (Pure) -
The digestion time for salmon louse (Lepeoptheirus salmonis) in lumpfish (Cyclopterus lumpus) in relation to freshness, developmental stage, and temperature
Eliasen, K., Østerø, S. L., Johannesen, T. T., Patursson, E. J., Jacobsen, Á., Mortensen, A. M., Nolsøe, M. & Johannesen, Á., 13 Mar 2025, In: PloS one. 20, 3, p. 1-12 12 p., e0311073.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Citations (Scopus) -
The Sea Trout Project: Annual Report 2024
Eliasen, K., Østerø, S. L., Hansen, J. F., Johannesen, Á., Kruse, H., Vazques, D., í Stórustovu, T., Johannesen, T. T. & Johannesen, U. V., 27 Feb 2025, 1 ed. Við Áir: Firum. 24 p. (Firum rit; vol. 2025-01)Research output: Book/Report › Commissioned report
Open AccessFile1 Downloads (Pure)
Activities
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Vitan til varandi aling
Johannesen, Á. (Member of programme committee)
31 Oct 2025Activity: Participating in or organising an event › Organising a conference, workshop, ...
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Hvussu skjótt sodnast ein lús? - Ein søga um gransking
Johannesen, Á. (Speaker)
15 Sept 2025 → 22 Sept 2025Activity: Talk or presentation › Oral presentation
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Vitan til varandi aling
Johannesen, Á. (Chair)
8 Nov 2024Activity: Participating in or organising an event › Participating in a conference, workshop, ...
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Vitan til varandi aling
Lava Olsen, E. (Chair), Johannesen, Á. (Chair), Erenbjerg, S. V. (Chair), Kragesteen, T. J. (Chair), Køtlum, J. L. (Chair), Ellefsen, H. (Chair), Klein, A. (Organiser), Abrahamsen, H. (Participant), Johannesen, U. V. (Participant), Mortensen, H. S. (Participant), Eliasen, K. (Participant), Johannesen, T. T. (Participant), Jacobsen, Á. (Participant), Østerø, S. L. (Participant) & Norði, G. Á. (Participant)
20 Oct 2023Activity: Participating in or organising an event › Organising a conference, workshop, ...
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SALMON MOVEMENT WITHIN A CAGE IS RESTRICTED BY A COMBINATION OF WAVES AND CURRENT
Johannesen, Á. (Speaker)
29 Nov 2022 → 2 Dec 2022Activity: Talk or presentation › Oral presentation
Press/Media
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Granskingarúrslit: Laksur í harðbalnum umstøðum
Johannesen, Á., Patursson, Ø., Kristmundsson, J., Dam, S. P., Mulelid, M. & Klebert, P.
4/03/22
2 items of Media coverage
Press/Media
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Nýggj vísindagrein um aling á harðbalnum økjum
Johannesen, Á., Patursson, Ø., Kristmundsson, J., Dam, S. P. & Klebert, P.
20/06/20
1 item of Media coverage
Press/Media
Thesis
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Predator-prey interactions in aquatic environments
Johannesen, Á. (Author), Morrell, L. J. (Supervisor) & Dunn, A. M. (Supervisor), 1 Dec 2013Student thesis: Doctoral Thesis