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Aquaculture Environment Interactions

    AEI prepress abstract   -  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. Murphy, Meadhbh Moriarty*, Adam J. Brooker, William Waites, Crawford W. Revie, Thomas P. Adams, Matt Lewis, Helena C. Reinardy, John P. Phelan, Johnny P. Coyle, Berit Rabe, Stephen C. Ives, John D. Armstrong, Anne D. Sandvik, Lars Asplin, Ørjan Karlsen, Soizic Garnier, Gunnvør á Norᵭi, Philip A. Gillibrand, Kim S. Last, Alexander G. Murray

    *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 five 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 forty-seven research gaps were identified, five broad themes emerged with thirteen 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.