Sökning: "Nile perch fishery"

Hittade 3 avhandlingar innehållade orden Nile perch fishery.

  1. 1. Co-management Challenges In The Lake Victoria Fisheries : A Context Approach

    Författare :Adolphine G. Kateka; Per Wramner; Vesa-Matti Loiske; Yunus Mgaya; Södertörns högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Lake Victoria; co-management; Nile perch fishery; poverty; illegal fishing; multi-lvel analysis; neo-liberal policies; Bukoba; Tanzania; Human geography; Kulturgeografi; Human Geography; kulturgeografi;

    Sammanfattning : This doctoral thesis examines the challenges to co-management in the Tanzania part of Lake Victoria. The study mainly addresses the Nile perch fishery and uses the fishing communities of Bukoba Rural district, Tanzania as a case study. LÄS MER

  3. 2. Efficiency, Risk and Regulation Compliance: Applications to Lake Victoria fisheries

    Författare :Razack B. Lokina; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Incentives; Lake Victoria; remuneration; skipper skill; stochastic frontier; technical efficiency; Risk aversion; artisanal fishers; Tanzania; Nile perch; Dagaa; compliance; legitimacy; normative; deterrence.;

    Sammanfattning : This thesis deals with artisanal fishers in Lake Victoria fisheries. The thesis consists of an introductory chapter and three self-contained papers, which make up the rest of the thesis chapters. LÄS MER

  4. 3. Essays on the Infestation of Lake Victoria by the Water Hyacinth

    Författare :Eseza Kateregga; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Water hyacinth; water hyacinth indicators; water hyacinth induced catchability coefficients; intrinsic growth rates for stocks; carrying capacity; elasticity of catch with respect to fishing effort; electricity outage costs.;

    Sammanfattning : This thesis consists of four essays that seek to estimate the abundance of the water hyacinth in Lake Victoria during the 1990s and analyse its effects on the catchability of fish, estimate the elasticities of catch with respect to the various components of effort in lake Victoria fisheries, and estimate the welfare costs of electricity outages. In the first essay, data on the extent of water hyacinth mat coverage collected from a number of reports and surveys is used to fit time trend water hyacinth mats growth curves for the three sections of Lake Victoria. LÄS MER