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  • On the Joint Management of Catch and Bycatch and the Use of Marine Reserves

    Creator:
    Reithe, Siv
    Abstract:
    This paper explores the possibility of using marine reserves to protect stocks subject to bycatch problems. The importance of migration rates and growth rates of both target and bycatch species and costs are analyzed. Pure open access equilibrium harvest of target species and stock level of bycatch species are compared...
    Resource Type:
    Research Paper
    Full Text:
    reserve if it has an intrinsic growth rate that is lower than the target species, and in some cases a

  • Climate Change and Productivity in the Aquaculture Industry

    Creator:
    Lorentzen, Torbjørn
    Abstract:
    Global warming is expected to affect the ecosystem in the Northeast Atlantic, and sufficient changes will also affect the aquaculture industry. Farming of salmon and trout is the biggest aquaculture industry in Norway. The export value was about 2 billion US dollars in 2005. The objective of the paper is...
    Resource Type:
    Research Paper
    Full Text:
    change, temperature, growth rate, salmon farming industry INTRODUCTION It is anticipated that

  • Does Diet Affect Growth in Juvenile Lingcod?

    Creator:
    Borgen, Katie, Head, Marybeth, Mills, Mark, and Zappa, Jacci
    Abstract:
    CERM Poster 2009. To determine if diet affects the growth rate of juvenile ling cod, we began with three initial objectives: 1) Record the growth rates of juvenile lingcod on different diets (squid and sardine); 2) Determine if hemocyanin will cause lingcod skin and muscle pigmentation will take on a...
    Resource Type:
    Poster
    Full Text:
    Slide 1 Does Diet Affect Growth in Juvenile Lingcod

  • Aquaculture-Fisheries Interactions

    Creator:
    Mikkelsen, Eirik
    Abstract:
    Assuming externalities from aquaculture to fisheries, we use a Verhulst-Schaefer model of fish population-dynamics and production, coupled with an aquaculture production model, to investigate effects on open-access and rent-maximising fisheries. Externalities are modelled by letting carrying capacity, intrinsic growth rate or catchability coefficient in the fishery depend on aquaculture production....
    Resource Type:
    Research Paper
    Full Text:
    carrying capacity, intrinsic growth rate or catchability coefficient in the fishery depend on aquaculture