Search for dissertations about: "Nile perch"

Found 5 swedish dissertations containing the words Nile perch.

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

    Author : Razack B. Lokina; Göteborgs universitet; []
    Keywords : 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.;

    Abstract : 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. READ MORE

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

    Author : Adolphine G. Kateka; Per Wramner; Vesa-Matti Loiske; Yunus Mgaya; Södertörns högskola; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Valorisation of fish waste biomass through recovery of nutritional lipids and biogas

    Author : Betty Mbatia; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; by-products; value addition; EPA; DHA; PUFA; biogas;

    Abstract : Commercial fish catch in Eastern Africa is dominated by Nile Perch. Of the fish that is processed for human consumption, 30-40% is wasted. Currently, these wastes are not fully utilized; they are sold off at low price, converted to low valued products or left to decompose leading to environmental pollution and wastage of bioresource. READ MORE

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

    Author : Eseza Kateregga; Göteborgs universitet; []
    Keywords : 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.;

    Abstract : 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. READ MORE

  7. 5. Production Technology and the Role of Skipper Skills in Lake Victoria Fisheries

    Author : Razack B. Lokina; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; incentives; Lake Victoria; productivity; remuneration; skipper skills; technical efficiency;

    Abstract : In this study we seek to explain the role of skipper skills in the productivity of fishing boats. The data is from the Lake Victoria fisheries for three fishing seasons (normal, peak and off-season) and two major species (Nile perch and Dagaa). READ MORE