When Diseases Hit Aquaculture: An Experimental Study of Spillover Effects from Negative Publicity

Hansen, Håvard; Onozaka, Yuko

doi:10.5950/0738-1360-26.4.281

Cited by 20 publications

(8 citation statements)

References 29 publications

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“…The reduction o f the total US demand for salmon fillets indicates a negative spillover between salmon products from the disease-affected country (Chile) and unaffected supply countries. This is consistent with the findings from Hansen and Onozaka (2011), who execute a study of consumer experiments. demand curve for a special case in which the exporter has a dominant position in the destina tion market but faces competition from other exporters.…”

Section: Graphical Analysissupporting

confidence: 91%

Imperfect Competition and Structural Changes in the US Salmon Import Market

Xie

Zhang

2014

Marine Resource Economics

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This article examines the extent o f co m p e titio n in the US salmon im p o rt m arket using a residual demand model. The estimated residual demand elasticity is coincident w ith the p ro fit margin, w hich depends on m arket demand and com petitors' supply as well as production cost. The estimation results reveal the following: (1) the forces driving the jointly dom inant positions o f Chilean and Canadian salmon exporters, (2) the suppliers' allo cation decisions by p ro d u c t form , (3 ) the consequences o f the antidum ping ord e r (A D ) im posed on Chilean salmon, and (4) the impacts o f the 2 0 0 8 infectious salmon anemia (ISA) outbreak on Chilean exports, com peti to rs' supply, and m arket demand.

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Section: Graphical Analysissupporting

confidence: 91%

Imperfect Competition and Structural Changes in the US Salmon Import Market

Xie

Zhang

2014

Marine Resource Economics

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“…12. See Asche et al (2009a) and Hansen and Onozaka (2011) for a discussion of the Chilean disease crisis. 13.…”

Section: Discussionmentioning

confidence: 99%

“…Chile is the only country that produces significant quantities of all the Price Transmission in New Supply Chains 207 major species, and it is the only significant producer of coho (>90% of global output). Figure 1 also illustrates the impact of the Infectious Salmon Anemia (ISA) disease crisis in Chile, which reduced production of Atlantic salmon from almost 400 thousand tons in 2006 to 130 thousand tons in 2010 (Asche et al, 2009a;Hansen & Onozaka, 2011). 6 By 2012, Chile's production of Atlantic salmon had clearly recovered with an output of 369 thousand tons, almost reaching pre-crisis levels.…”

Section: Salmon Productionmentioning

confidence: 99%

Price Transmission in New Supply Chains—the Case of Salmon in France

Asche

Dahl

Valderrama

et al. 2014

Aquaculture Economics & Management

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& In recent years there has been increased interest in the transaction forms in salmon markets, given that contracts have become more common, vertical mergers create firms that cover several levels in the supply chain, and futures markets have developed as a price risk tool. These are strong indications that salmon supply chains are developing in the same direction as supply chains for more processed food products. In this article we investigate to what extent this development has influenced the price transmission process for two product forms: a relatively unprocessed one (fresh fillets) and a more processed one (smoked salmon). Results indicate that the supply chain for fresh fillets can still be characterized by a high degree of price transmission. On the contrary, the hypothesis of full price transmission for smoked salmon is rejected.

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“…Even with modern technologies and information distribution, entire industries have collapsed due to a pathogen outbreaks. For example, Chilean salmon aquaculture operations suffered drastic losses from infectious salmon anaemia (ISA), which devastated the industry (Asche et al 2009) and damaged public perception of salmon farming (Hansen & Onozaka 2011). As such, parasites and disease are considered the primary bottleneck that restrains the 'Blue Revolution' (Blaylock & Bullard 2014).…”

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confidence: 99%

Behaviour in the toolbox to outsmart parasites and improve fish welfare in aquaculture

Bui

Oppedal

Sievers

et al. 2017

Reviews in Aquaculture

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Host behaviour can prevent infection and moderate the fitness of parasites. Antiparasite behaviours are prevalent in many host–parasite systems and occur over fine or broad scales. With global growth in aquaculture production and the associated proliferation of parasites in farming systems, the behaviour of the fish being farmed has seldom been investigated in relation to parasites. Epidemics and outbreaks of parasites are prevalent in most aquaculture systems, and behaviour could be harnessed in concert with current methods to prevent and control parasites and pathogens. However, this requires a systematic understanding of the behaviours of hosts, their capacity for resistance and their interaction with the environment and the parasite. Herein, we present evidence for how behaviour could be used in aquaculture, and discuss the possibility for behaviour to be used in aquaculture as (i) an indicator of welfare status, (ii) a tool in prevention or control and (iii) to maintain or improve welfare. We apply this framework to a case study of a highly problematic parasite, the salmon louse (Lepeophtheirus salmonis), on farmed Atlantic salmon (Salmo salar). We present the current state of the system, and the drawbacks of current control or prevention methods. We synergise current knowledge on host behaviours and show how behaviour could be incorporated into current and new approaches for prevention and control. Through this first evaluation of the possibilities behaviour presents in disease management, we aim to facilitate a shift in the current disease control paradigm from reactive‐based post‐infection control to pre‐infection prevention approaches.

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When Diseases Hit Aquaculture: An Experimental Study of Spillover Effects from Negative Publicity

Cited by 20 publications

References 29 publications

Imperfect Competition and Structural Changes in the US Salmon Import Market

Imperfect Competition and Structural Changes in the US Salmon Import Market

Price Transmission in New Supply Chains—the Case of Salmon in France

Behaviour in the toolbox to outsmart parasites and improve fish welfare in aquaculture

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