Clinical <i>Vibrio anguillarum</i> infection in lumpsucker <i>Cyclopterus lumpus</i> in Scotland

Marcos-López, Mar; Donald, K.; Stagg, H.; McCarthy, Una

doi:10.1136/vr.101763

Cited by 22 publications

(15 citation statements)

References 5 publications

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“…Both spread within the salmon industry and consequences are controlled by vaccines, so additional risk from CF is probably small. Wrasse can be infected (Birbek and Treasurer, ) and lumpsuckers (Marcos‐Lopez et al., ) clinically diseased with vibrio; salmon are vaccinated against vibrio diseases. Wrasse can carry Paramoeba perurans (Karlsbakk et al., ), the causative agent of amoebic gill disease; this might increase the risk of AGD in Scotland where a major outbreak recently occurred.…”

Section: Discussionmentioning

confidence: 99%

A Modelling Framework for Assessing the Risk of Emerging Diseases Associated with the Use of Cleaner Fish to Control Parasitic Sea Lice on Salmon Farms

Murray

2014

Transbound Emerg Dis

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Sea lice are the most damaging parasite of marine salmonids, both economically and in terms of potential impacts on wild fish. An increasingly widely applied control is the use of cleaner fish (CF) such as wrasse that eat lice. However, such CF can carry pathogens that may cause disease in salmon, including the potential emergence of new diseases. This is not just a theoretical risk, as demonstrated by a recent outbreak of viral haemorrhagic septicaemia in wrasse held on salmon farms in Shetland. A modelling framework is developed to identify conditions in which emergence might occur, and, from this, means of reducing risk. Diseases that might emerge easily in farmed salmon would be likely to have already done so by other routes of exposure, and if risks are very low, they would need to be greatly enhanced to become significant relative to costs of lice control. CF may most enhance risks from disease with moderate probability of emerging. Risks of emergence can be reduced by replacing wild-caught with hatchery-reared CF, minimizing mixing of CF from different sources, surveillance for clinical disease in the CF and ensuring strategic biosecurity (area management with synchronized fallowing). Reuse of CF for a second salmon production cycle may reduce costs and even probability of infection (especially from wild-caught CF), but should only be considered as part of a rigorous area management programme because the practice presents opportunities for pathogens to adapt to salmon by weakening fallowing.

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Section: Discussionmentioning

confidence: 99%

A Modelling Framework for Assessing the Risk of Emerging Diseases Associated with the Use of Cleaner Fish to Control Parasitic Sea Lice on Salmon Farms

Murray

2014

Transbound Emerg Dis

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“…, ; Johansen ; Marcos‐López et al . ; Breiland et al . ; Hjeltnes ; Bornø & Lie ; Cockerill & Wallis ; Alarcón et al .…”

Section: Disease Managementunclassified

Use of lumpfish for sea‐lice control in salmon farming: challenges and opportunities

Powell

Treasurer²,

Pooley

et al. 2017

Reviews in Aquaculture

210

248

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Efficient sea-lice control remains one of the most important challenges for the salmon farming industry. The use of wrasse (Labridae) as cleaner fish offers an alternative to medicines for sea-lice control, but wrasse tend to become inactive in winter. Lumpfish (Cyclopterus lumpus) continue to feed on sea-lice at low temperatures, and commercial production has escalated from thousands of fish in 2010 to well over 30 million juveniles deployed in 2016. However, production still relies on the capture of wild broodstock, which may not be sustainable. To meet global industry needs, lumpfish production needs to increase to reach c. 50 million fish annually and this can only come from aquaculture. We review current production methods and the use of lumpfish in sea cages and identify some of the main challenges and bottlenecks facing lumpfish intensification. Our gap analysis indicates that the areas in most need of research include better control of maturation for year-round production; formulation of appropriate diets; artificial selection of elite lines with desirable traits; and development of vaccines for certified, disease-free juvenile production. The welfare of farmed lumpfish also needs to be better quantified, and more information is needed on optimal densities and tank design. Finally, the risk of farmed lumpfish escaping from net pens needs to be critically assessed, and we argue that it might be beneficial to recover cleaner fish from salmon cages after the production cycle, perhaps using them as broodstock, for export to the Asian food markets or for the production of animal feeds.

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“…While bacterial diseases of lumpsucker reported in the English literature appear limited to Vibrio anguillarum serotype O1 (Marcos‐López et al . ), brief reports of the occurrence of atypical Aeromonas salmonicida , Vibrio ordalii, Pseudomonas anguilliseptica and most significantly a previously undescribed Pasteurella infection are available in Norwegian language publications (Poppe et al . , ; Johansen (); Hjeltnes ().…”

Section: Bacterial Isolates Assessed By Rpob and Near‐full‐length 16smentioning

confidence: 99%

Pasteurellosis in lumpsucker Cyclopterus lumpus, farmed in Norway

Alarcón

Gulla

Røsæg

et al. 2015

Journal of Fish Diseases

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Clinical Vibrio anguillarum infection in lumpsucker Cyclopterus lumpus in Scotland

Cited by 22 publications

References 5 publications

A Modelling Framework for Assessing the Risk of Emerging Diseases Associated with the Use of Cleaner Fish to Control Parasitic Sea Lice on Salmon Farms

A Modelling Framework for Assessing the Risk of Emerging Diseases Associated with the Use of Cleaner Fish to Control Parasitic Sea Lice on Salmon Farms

Use of lumpfish for sea‐lice control in salmon farming: challenges and opportunities

Pasteurellosis in lumpsucker Cyclopterus lumpus, farmed in Norway

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