Research@Lincoln
    • Login
     
    View Item 
    •   Research@Lincoln Home
    • Theses and Dissertations
    • Masters Theses
    • View Item
    •   Research@Lincoln Home
    • Theses and Dissertations
    • Masters Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Salmon ranching in New Zealand : biology, economics and policy

    Knowles, S.
    Abstract
    Many groups and individuals are involved in decision making for the allocation of the salmon resource. A comprehensive study of the economics of salmon ranching in New Zealand has not previously been undertaken. Before informed decisions can be made, such a study is essential. In this project, the economic potential of salmon ranching is examined, and the major variables that influence the economic return are identified. Preliminary to the economic analysis, the features of commercial salmon ranching in New Zealand are outlined. Quinnat salmon biology is described, and the environmental parameters that influence the operation of a salmon ranch are discussed. The history of commercial harvesting of salmon in New Zealand is detailed, along with the influence of salmon anglers on ranching policy. Local and export markets for salmon are examined for each product category, and the prospects in the major markets are assessed. A simulation model that incorporates the important linkages between biological and economic variables is developed. The model is used to determine the net benefits to the nation from operating a salmon ranch. Subsequently, the sensitivity of economic return to the biological and economic variables is tested. Finally, the model is used to evaluate the effect of three aspects of salmon management policy on economic return, namely; ranch location, other forms of salmon aquaculture, and disposal of salmon caught at sea. Results show that salmon ranching can yield an "acceptable" economic return to the nation under certain conditions. Economic return is found to be most sensitive to the biological variables of hatchery carrying capacity, hatchery mortality, and survival of released salmon. Market price and feed costs are identified as the most significant of the economic variables. Ranch location is revealed to be a crucial factor in determining the economic return from salmon ranching. Taking these results into account, the characteristics of a salmon ranching investment are examined and found to diverge significantly from alternative investments. From this, it is concluded that unless salmon ranches can be located at or near river mouths, development of a salmon ranching industry that also enhances the sports fishery is unlikely to occur.... [Show full abstract]
    Keywords
    salmon; salmon ranching; economic variables; Quinnat salmon biology; export markets; local markets; biological variables; salmon management policy; salmon aquaculture
    Fields of Research
    140201 Agricultural Economics; 070401 Aquaculture; 070403 Fisheries Management
    Date
    1983
    Type
    Thesis
    Collections
    • Masters Theses [799]
    • Department of Environmental Management [1058]
    Share this

    on Twitter on Facebook on LinkedIn on Reddit on Tumblr by Email

    Thumbnail
    View/Open
    knowles_msc.pdf
    Metadata
     Expand record

    Related items

    Showing items related by title, author, creator and subject.

    • The feasibility of salmon ranching : a case study on the Rangitata River 

      Arulambalam, Ajit; Anderson, Malcolm (Lincoln College, University of Canterbury, 1984)
      Deep Stream on the Rangitata River has been provisionally assessed for its feasibility as a salmon ranching site. This was on the basis of physical, biological, technical, engineering, economic and socio-environmental ...
    • The New Zealand quinnat salmon fishery: problems with multiple water use conflicts and management 

      Bryant, M. G. (Lincoln College, University of Canterbury, 1979)
      In this study four problems, with respect to the N.Z. quinnat fishery, are discussed: management of the fishery, water resource management, environmental management and adverse impacts caused by other water users. Many ...
    • The effect of melatonin treatment on juvenile male Chinook salmon 

      Detheridge-Davies, Elisabeth (Lincoln College, University of Canterbury, 1988)
      The aim of this trial has been to establish whether melatonin pellets can be successfully incorporated into the blood stream of salmon. Juvenile Chinook salmon were implanted in the dorsal or intraperitoneal sinus, with a ...
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us
     

     

    Browse

    All of Research@LincolnCommunities & CollectionsTitlesAuthorsKeywordsBy Issue DateThis CollectionTitlesAuthorsKeywordsBy Issue Date

    My Account

    LoginRegister

    Statistics

    View Usage Statistics
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us