Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries
This paper examines the possible ecological and economic effects of sea lice from salmon farms on wild salmon populations and fisheries. A bioeconomic model is developed incorporating an age-structured population dynamics model of wild pink and chum salmon with mortality caused by farm-derived sea l...
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ftrepec:oai:RePEc:eee:ecolec:v:70:y:2011:i:10:p:1746-1755 2024-04-14T08:18:26+00:00 Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries Liu, Yajie Sumaila, Ussif Rashid Volpe, John Paul http://www.sciencedirect.com/science/article/pii/S0921800911001704 unknown http://www.sciencedirect.com/science/article/pii/S0921800911001704 article ftrepec 2024-03-19T10:29:07Z This paper examines the possible ecological and economic effects of sea lice from salmon farms on wild salmon populations and fisheries. A bioeconomic model is developed incorporating an age-structured population dynamics model of wild pink and chum salmon with mortality caused by farm-derived sea lice. Our model incorporates capture fisheries under two management policy scenarios. Results suggest that the ecological and economic effects are minor when the sea lice induced mortality rate is below 20%, while they can be severe if the mortality is greater than 30%. Sea lice have greater ecological and economic impacts on pink salmon than on chum salmon. The impact of farm lice epizootics on wild salmon is greater under a fixed exploitation rate than under a target escapement policy. As a result, a precautionary principle should be adopted, and appropriate management schemes and policy strategies should be developed to minimize these effects. Sea lice induced mortality Recruitment Discounted profit Pink and chum salmon Fixed harvest rate Fixed escapement policy Article in Journal/Newspaper Pink salmon RePEc (Research Papers in Economics) |
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RePEc (Research Papers in Economics) |
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description |
This paper examines the possible ecological and economic effects of sea lice from salmon farms on wild salmon populations and fisheries. A bioeconomic model is developed incorporating an age-structured population dynamics model of wild pink and chum salmon with mortality caused by farm-derived sea lice. Our model incorporates capture fisheries under two management policy scenarios. Results suggest that the ecological and economic effects are minor when the sea lice induced mortality rate is below 20%, while they can be severe if the mortality is greater than 30%. Sea lice have greater ecological and economic impacts on pink salmon than on chum salmon. The impact of farm lice epizootics on wild salmon is greater under a fixed exploitation rate than under a target escapement policy. As a result, a precautionary principle should be adopted, and appropriate management schemes and policy strategies should be developed to minimize these effects. Sea lice induced mortality Recruitment Discounted profit Pink and chum salmon Fixed harvest rate Fixed escapement policy |
format |
Article in Journal/Newspaper |
author |
Liu, Yajie Sumaila, Ussif Rashid Volpe, John Paul |
spellingShingle |
Liu, Yajie Sumaila, Ussif Rashid Volpe, John Paul Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
author_facet |
Liu, Yajie Sumaila, Ussif Rashid Volpe, John Paul |
author_sort |
Liu, Yajie |
title |
Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
title_short |
Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
title_full |
Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
title_fullStr |
Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
title_full_unstemmed |
Potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
title_sort |
potential ecological and economic impacts of sea lice from farmed salmon on wild salmon fisheries |
url |
http://www.sciencedirect.com/science/article/pii/S0921800911001704 |
genre |
Pink salmon |
genre_facet |
Pink salmon |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0921800911001704 |
_version_ |
1796317915548483584 |