The drivers of sea lice management policies and how best to integrate them into a risk management strategy: An ecosystem approach to sea lice management.
Responses DPSIR approach
integrated sea lice management
PublisherJohn Wiley & Sons Ltd
MetadataShow full item record
AbstractThe control of sea lice infestations on cultivated Atlantic salmon is a major issue in many regions of the world. The numerous drivers which shape the priorities and objectives of the control strategies vary for different regions/jurisdictions. These range from the animal welfare and economic priorities of the producers, to the mitigation of any potential impacts on wild stocks. Veterinary ethics, environmental impacts of therapeutants, and impacts for organic certification of the produce are, amongst others, additional sets of factors which should be considered. Current best practice in both EU and international environmental law advocates a holistic ecosystem approach to assessment of impacts and risks. The issues of biosecurity and ethics, including the impacts on the stocks of species used as cleaner fish, are areas for inclusion in such a holistic ecosystem assessment. The Drivers, Pressures, State, Impacts, Responses (DPSIR) process is examined as a decision-making framework and potential applications to sea lice management are outlined. It is argued that this is required to underpin any integrated sea lice management (ISLM) strategy to balance pressures and outcomes and ensure a holistic approach to managing the issue of sea lice infestations on farmed stock on a medium to long-term basis.
DescriptionPeer-reviewed. © 2017 The Authors. Journal of Fish Diseases Published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
CitationJackson, D., Moberg, O., Stenevik Djupevåg, E. M., Kane, F., & Hareide, H. (2018). The drivers of sea lice management policies and how best to integrate them into a risk management strategy: An ecosystem approach to sea lice management. Journal of fish diseases, 41(6), 927-933.
- Early-stage sea lice recruits on Atlantic salmon are freshwater sensitive.
- Authors: Wright DW, Oppedal F, Dempster T
- Issue date: 2016 Oct
- Delousing efficiency of farmed ballan wrasse (Labrus bergylta) against Lepeophtheirus salmonis infecting Atlantic salmon (Salmo salar) post-smolts.
- Authors: Leclercq E, Davie A, Migaud H
- Issue date: 2014 Aug
- Evaluating the effect of synchronized sea lice treatments in Chile.
- Authors: Arriagada G, Stryhn H, Sanchez J, Vanderstichel R, Campistó JL, Rees EE, Ibarra R, St-Hilaire S
- Issue date: 2017 Jan 1
- 'Snorkel' lice barrier technology reduced two co- occurring parasites, the salmon louse (Lepeophtheirus salmonis) and the amoebic gill disease causing agent (Neoparamoeba perurans), in commercial salmon sea-cages.
- Authors: Wright DW, Stien LH, Dempster T, Vågseth T, Nola V, Fosseidengen JE, Oppedal F
- Issue date: 2017 May 1
- Salmon lice--impact on wild salmonids and salmon aquaculture.
- Authors: Torrissen O, Jones S, Asche F, Guttormsen A, Skilbrei OT, Nilsen F, Horsberg TE, Jackson D
- Issue date: 2013 Mar
Showing items related by title, author, creator and subject.
F-Press: A Stochastic Simulation Tool for Developing Fisheries Management Advice and Evaluating Management StrategiesCodling, E.; Kelly, C. (Marine Institute, 2006)F-PRESS is a stochastic simulation tool based on a simple algorithm designed to fit in with the ICES conceptual framework for software development. F-PRESS can be used to develop probabilistic assessment advice or to evaluate management strategies or harvest control rules (HCRs). In this paper, we describe and justify the underlying methodology on which F-PRESS is based and give full details of the modular structure of the simulation algorithm. We use the example of Irish Sea cod to demonstrate how the software can be used to develop probabilistic management advice or to evaluate and compare different HCRs.
Development of a Management Strategy for the Reduction/Elimination of Sea Lice Larvae, Lepeophtheirus salmonis, Parasites of Salmon and TroutO'Donoghue, G; Costelloe, M; Costelloe, J (Marine Institute, 1998)Sea lice are copepod ectoparasites of fish, belonging to the family Caligidae. Their importance to marine salmonid culture stems from the extensive damage they may inflict on hosts through feeding and contact abrasion. The principal species associated with cultured salmonids is Lepeophtheirus salmonis (Kroyer, 1838), a large salmonid-specific species reported as a problem for aquaculture in a number of countries. The objectives of the present study were: (a) to examine the production and distribution of larval stages of Lepeophtheirus salmonis within a cage containing Salmo salar in order to identify specific spawning cues and larval frequencies and intensities; (b) to identify precisely the behavioural patterns of sea lice larvae over a variety of tidal and diurnal cycles; (c) to monitor environmental parameters and (d) having identified the specifics of spawning and larval behaviour, to identify potential management strategies for the elimination of a high percentage of sea lice larvae produced on fish farms. Larval plankton samples along with mobile lice samples were taken during two growing cycles on a fish farm on the west coast of Ireland. Highest densities of larvae were recovered during neap tides following synchronous spawning episodes within the female population. Gravid females were recorded during the winter months; however, spawning intensity remained low until late Spring. Sea lice larvae migrated vertically within the water column with highest densities recorded during slack water normally associated with high tide. The results of this study increases our knowledge of the complex behaviour and life cycle of the louse. The occurrence and the location of high densities of larvae within salmon cages have been identified. This information provides a sound basis from which management strategies can be developed in order to reduce lice intensities on the farm.
Pancreas Disease in Farmed Salmon - Health Management and Investigations at Irish Farm Sites 2005-2008Graham, D; Rodger, H; Ruane, N. M. (Marine Institute, 2008)This publication constitutes the final report for the research project ST/05/01 “Site investigations and disease management of the pancreas disease virus in Irish farmed salmon”, funded under the NDP Marine RTDI Programme. Work undertaken within the project included longitudinal studies of rainbow trout and Atlantic salmon at sea following the course of infection, testing for vectors and reservoirs of the virus, molecular studies of the virus and an epidemiological investigation of pancreas disease in Ireland. Results have shown that although pancreas disease is endemic in marine farmed Atlantic salmon, no evidence of infection in rainbow trout farmed at sea was found. Serological and molecular based diagnostic methods were shown to be suitable for the screening of fish stocks for the presence of the virus. For the confirmation of clinical outbreaks, farm data and histopathological results should be included. The results also suggest that horizontal transmission of the virus may be the main route of infection between sites. The project also involved the technology transfer of molecular and serological diagnostic methods for pancreas disease between partners and the final chapter includes practical information on management of, and mitigation against, pancreas disease. Pathologies such as pancreas disease, heart and skeletal muscle inflammation and cardiomyopathy syndrome, pose a serious threat to salmonid farming in Ireland, Scotland and Norway. Most significant among this group of diseases is pancreas disease, a viral disease affecting Atlantic salmon during the marine stage of the production cycle. From the first description of pancreas disease in farmed Atlantic salmon from Scotland in 1976 the disease has now become endemic in Ireland and parts of Norway and continues to be significant in Scotland. The causal agent of pancreas disease, a salmonid alphavirus, has now been characterised and a closely related subtype of the virus is known to cause sleeping disease in farmed rainbow trout on continental Europe and in the United Kingdom. The Irish salmon farming industry has estimated that pancreas disease has resulted in a total loss of turnover of €35 million with €12 million loss of profit in the years 2003-2004. The economic impacts are estimated to be in the range of €100 million per year in Norway. In Scotland, pancreas disease and related pathologies are increasingly responsible for significant losses in marine salmon farms but these have yet to be quantified.