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Aquaculture Environment Interactions

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AEI 16:27-42 (2024)  -  DOI:

A gap analysis on modelling of sea lice infection pressure from salmonid farms. II. Identifying and ranking knowledge gaps: output of an international workshop

Joanne M. Murphy1,*, Meadhbh Moriarty1, Adam J. Brooker2, William Waites3,4, Crawford W. Revie3, Thomas P. Adams5, Matt Lewis6, Helena C. Reinardy7,8, John P. Phelan7, Johnny P. Coyle9,13, Berit Rabe1, Stephen C. Ives1, John D. Armstrong1, Anne D. Sandvik10, Lars Asplin10, Ørjan Karlsen10, Soizic Garnier1, Gunnvør á Norði11, Philip A. Gillibrand12, Kim S. Last7, Alexander G. Murray1

1Marine Directorate, Scottish Government, Marine Laboratory, Aberdeen AB11 9DB, UK
2Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK
3Computer and Information Sciences, University of Strathclyde, Glasgow G1 1XH, UK
4School of Informatics, University of Edinburgh, Edinburgh EH8 9AB, UK
5Scottish Sea Farms Ltd, Barcaldine Hatchery, Argyll PA37 1SE, UK
6Intertek Energy & Water Consultancy Services, The Maltings, East Tyndall Street, Cardiff CF24 5EA, UK
7Scottish Association for Marine Science, Dunstaffnage PA37 1QA, UK
8Department of Arctic Technology, University Centre in Svalbard, 9171 Longyearbyen, Norway
9Bakkafrost Scotland, 28 Drumsheugh Gardens, Edinburgh EH3 7RN, UK
10Institute of Marine Research, PB1870 Nordnes, 5817 Bergen, Norway
11Fiskaaling-Aquaculture Research Station of the Faroes, Við Áir, 430 Hvalvík, Faroe Islands
12Mowi Scotland Ltd, Farms Office, Fort William PH33 6RX, UK
13Present address: Salmon Scotland, 21 Calton Road, Edinburgh EH8 8DL, UK
*Corresponding author:

ABSTRACT: Sea lice are a major health hazard for farmed Atlantic salmon in Europe, and their impact is felt globally. Given the breadth of ongoing research in sea lice dispersal and population modelling, and focus on research-led adaptive management, we brought experts together to discuss research knowledge gaps. Gaps for salmon lice infection pressure from fish farms were identified and scored by experts in sea lice-aquaculture-environment interactions, at an international workshop in 2021. The contributors included experts based in Scotland, Norway, Ireland, Iceland, Canada, the Faroe Islands, England and Australia, employed by governments, industry, universities and non-government organisations. The workshop focused on knowledge gaps underpinning 5 key stages in salmon lice infection pressure from fish farms: larval production; larval transport and survival; exposure and infestation of new hosts; development and survival of the attached stages; and impact on host populations. A total of 47 research gaps were identified; 5 broad themes emerged with 13 priority research gaps highlighted as important across multiple sectors. The highest-ranking gap called for higher quality and frequency of on-farm lice count data, along with better sharing of information across sectors. We highlight the need for synergistic international collaboration to maximise transferable knowledge. Round table discussions through collaborative workshops provide an important forum for experts to discuss and agree research priorities.

KEY WORDS: Salmon louse · Sea trout · Wild salmon · Stakeholder engagement · Opinion

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Cite this article as: Murphy JM, Moriarty M, Brooker AJ, Waites W and others (2024) A gap analysis on modelling of sea lice infection pressure from salmonid farms. II. Identifying and ranking knowledge gaps: output of an international workshop. Aquacult Environ Interact 16:27-42.

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