The Economics of Salmon Aquaculture (Fishing News Books)

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This gap presages not only more pressure on wild stocks — which are already either overfished or at maximum levels for sustainable exploitation — but a shift to more carbon-intensive forms of food production. Expansion of fish farming faces major obstacles, however. Finding space for inland aquaculture is increasingly difficult, while worries about the environmental impact of offshore fish farming have also grown. But the fish farming industry has been subject to growing accusations that it is damaging the marine environment.

Animal welfare activists complain that rearing salmon in densely populated pens means unacceptable levels of parasite infestation and disease. In large numbers, sea lice can kill salmon and conservationists say fish farms are contributing to the collapse of wild populations in west coast rivers. The population of Scottish Atlantic salmon has declined by more than half since the s, to about , in Fish farmers acknowledge sea lice are a big problem but they insist the industry can cope with the challenge. One diving business owner told the committee that a diminution in the wild of wrasse, which normally eat octopus eggs, meant more shellfish were being eaten by octopuses, potentially hurting local fishermen of shellfish.

The committee urged the government to consider regulation of the fishing of cleaner fish to preserve wild stocks. It also called for action to move fish farms sited near migratory routes or in slow-flowing inshore waters to locations where they were less likely to pass sea-lice to wild salmon. Get alerts on Fishing industry when a new story is published. Plus agri-robots in action on video and a podcast discussion of the science behind DNA diet apps Supported by Rabobank. Cookies on FT Sites We use cookies for a number of reasons, such as keeping FT Sites reliable and secure, personalising content and ads, providing social media features and to analyse how our Sites are used.

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Currently reading:. Control: farm monitoring and management thresholds Lice levels on farmed fish have been monitored in Ireland since , and a comprehensive monitoring programme has been in place since O'Donohoe et al. Figure 3. Control: chemotherapeutants interventions Over the years, a variety of treatments have been tried against salmon louse infestations.

Metrifonate Neguvon Dichlorvos Nuvan Azamethiphos Salmosan Hydrogen peroxide Diflubenzuron Lepsidon, Releeze Teflubenzuron Ektobann Pyrethrins Py-Sal Cypermethrin Excis, Betamax Deltamethrin Alpha max Emamectin Slice 14 28 24 32 26 9 23 36 20 18 28 3 19 14 50 19 11 4 12 62 73 23 30 28 69 19 12 62 23 20 59 16 23 55 17 32 45 16 39 49 23 60 30 29 73 66 32 39 81 88 62 41 3 61 22 3 26 48 54 Figure 4.

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Control: vaccination There are two published studies in which vaccine candidate antigens were tested against salmon lice. Conclusions Salmon lice are natural parasites on salmonids in the sea water with a circumpolar distribution in the northern Hemisphere. Acknowledgments This article was initiated and supported by the Norwegian Centre of Expertise — Aquaculture.

Wavelength-specific behaviour in Lepeophtheirus salmonis and Calanus finmarchicus to ultraviolet and visible light in laboratory experiments Crustacea: Copepoda Marine Ecology-Progress Series. Characterization of three Ixodes scapularis cDNAs protective against tick infestations.

The recovery of the Chilean salmon industry. Modelling sea lice dispersion under varying environmental forcing in a Scottish sea loch. Infectious Diseases of Humans: Dynamics and Control. Oxford: Oxford University Press; Nytt fra Havbruk. Lovende resultat med rognkjeks Promising results with lumpfish p. Competition between farmed and wild salmon: the Japanese salmon market. Agricultural Economics. Farming the Sea. Marine Resource Economics.

The Economics of Salmon Aquaculture. Chichester: Wiley-Blackwell; Environmental problems, productivity and innovations in Norwegian aalmon aquaculture. The role of semiochemicals in host location and non-host avoidance by salmon louse Lepeophtheirus salmonis copepodids. Canadian Journal of Fisheries and Aquatic Sciences. Diseases and parasites in wild Atlantic salmon Salmo salar populations. Fisheries Research. Plasma concentrations of emamectin benzoate after Slice TM treatments of Atlantic salmon Salmo salar : differences between fish, cages, sites and seasons.

The Economics of Salmon Aquaculture | Wiley Online Books

Salmon lice on wild salmon Salmo salar L. Successful survival of wrasse through winter in submersible netcages in a fjord in western Norway. Wrasse: Biology and Use in Aquaculture. Rense fisk mot lakselus Cleanerfish against sea lice Norsk Fiskeoppdrett. Sea lice infestation on farmed salmon: possible use of cleaner-fish as an alternative method for de-lousing. Rapport fra Havforskningsinstituttet. Bergen, Norway: Havforskningsinstituttet; Fiskeristatistikk for leppefisk — — Fishery Statistics for Wrasses — — Bergen, Norway: Fiskeridirektoratet; Preliminary report on oral treatment against salmon lice, Lepeophtheirus salmonis , with Neguvon.

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Host blood: a major food component for the parasitic copepod Lepeophtheirus salmonis , Kroyeri, Crustacea: Caligidae Norwegian Journal of Zoology. Efficacy of teflubenzuron Calicide R for the treatment of sea lice, Lepeophtheirus salmonis Kroyer , infestations of farmed Atlantic salmon Salmo salar L. Aquaculture Research. Sensitivity assessment of Caligus rogercresseyi to emamectin benzoate in Chile. Effect of environmental salinity on sea lice Lepeophtheirus salmonis settlement success. Diseases of Aquatic Organisms.

New York: Ellis Horwood; Perspectives on pink salmon and sea lice: scientific evidence fails to support the extinction hypothesis. Reviews in Fisheries Science. Wild salmonids and sea louse infestations on the west coast of Scotland: sources of infection and implications for the management of marine salmon farms. Pest Management Science. Novel gene isolated from Caligus rogercresseyi : a promising target for vaccine development against sea lice.

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  7. Copenhagen: International Council for the Exploration of the Sea; Sea lice, Lepeophtheirus salmonis and Caligus elongatus , levels on salmon returning to the west coast of Ireland, The global economic cost of sea lice to the salmonid farming industry. Sea Lice — Proceedings of the sixth international conference on sea lice biology and control. Distribution of the larval stages of Lepeophtheirus salmonis in three bays on the west coast of Ireland. Analysis and management of resistance to chemotherapeutants in salmon lice, Lepeophtheirus salmonis Copepoda: Caligidae Pest Management Science.

    Salmon louse Lepeophtheirus salmonis transcriptomes during post molting maturation and egg production, revealed using EST-sequencing and microarray analysis. BMC Genomics.

    Fisheries and aquaculture economics

    Evidence for occurrence of an organophosphate-resistant type of acetylcholinesterase in strains of sea lice Lepeophtheirus salmonis Kroyer Pest Management Science. Novel point mutation in the sodium channel gene of pyrethroid-resistant sea lice Lepeophtheirus salmonis Crustacea: Copepoda Diseases of Aquatic Organisms.

    Enzymes released from Lepeophtheirus salmonis in response to mucus from different salmonids.


    Journal of Parasitology. Lepeophtheirus salmonis : characterization of prostaglandin E-2 in secretory products of the salmon louse by RP-HPLC and mass spectrometry. Experimental Parasitology. Differential gene expression in Atlantic salmon infected with Lepeophtheirus salmonis. Journal of Aquatic Animal Health. Parasite Immunology. Laboratory and field investigations of salmon lice Lepeophtheirus salmonis Kroyer infestation on Atlantic salmon Salmo salar L.


    Bergen, Norway: Fiskeridirektoratet Directorate of Fisheries ; Oslo, Norway: Evidence for sea lice-induced marine mortality of Atlantic salmon Salmo salar in western Ireland from experimental releases of ranched smolts treated with emamectin benzoate. BMC Genetics. Estimates of genetic variation in the susceptibility of Atlantic salmon Salmo salar to the salmon louse Lepeophtheirus salmonis. A comparison of sea louse Lepeophtheirus salmonis infection levels in farmed and wild Atlantic salmon Salmo salar L. Variation of Atlantic salmon families Salmo salar L.

    Major histocompatibility complex MHC variation and susceptibilty to the sea louse Lepeophtheirus salmonis in Atlantic salmon Salmo salar. Pharmacokinetics of emamectin benzoate administered to Atlantic salmon, Salmo salar L. Population genetic structure of the parasitic copepod Lepeophtheirus salmonis throughout the Atlantic.

    Marine Ecology-Progress Series. Utilization of dichlorvos and trichlorfon in salmonid farming in Norway during — Acta Veterinaria Scandinavica. Consumption of drugs for sea lice infestations in Norwegian fish farms: methods for assessment of treatment patterns and treatment rate. Serum responses to the salmon louse, Lepeophtheirus salmonis Kroyer, , in naturally infected salmonids and immunised rainbow trout, Oncorhynchus mykiss Walbaum , and rabbits.

    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books) The Economics of Salmon Aquaculture (Fishing News Books)
    The Economics of Salmon Aquaculture (Fishing News Books)

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