Sökning: "fish management"

Visar resultat 1 - 5 av 262 uppsatser innehållade orden fish management.

  1. 1. The effect of the COVID-19 lockdown on the spatial ecology of moose in an area with high recreational activity

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Maximilian Dörr; [2024]
    Nyckelord :Moose; Alces alces; habitat selection; tourism; human disturbance; activity; movement; speed; seasons; Covid-19; pandemic;

    Sammanfattning : In diverse landscapes, the coexistence of wildlife habitat requirements and human land use often leads to conflicts, posing challenges for sustainable species management. Recreational activities, especially in sparsely populated areas, frequently disturb wildlife behavior, necessitating a comprehensive assessment of anthropogenic impacts on habitats. LÄS MER

  3. 2. Modelling the chemical recycling of plastic waste via pyrolysis and analysing integration with existing refinery infrastructure

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Simon Dahl; [2023]
    Nyckelord :Pyrolysis; Recycling; Integration; Modelling; Simulation; Techno-economic; Plastic; Chemical engineering; Technology and Engineering;

    Sammanfattning : Current plastic management is unsustainable as large amounts of plastic end up landfilled or in the ocean, necessitating an expansion of waste management infrastructure. Pyrolysis is a viable chemical recycling option, and in this report a pyrolysis model is constructed in Aspen Plus. LÄS MER

  4. 3. Ecological risk assessment of pesticide use in rice farming in the Mekong Delta , Vietnam

    Magister-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Bubaraye Ohiosimuan Dirikumo; [2023]
    Nyckelord :Pesticides; Ecological Risk Assessment ERA ; rice farming; Mekong Delta; PRIMET Model; Exposure Toxicity Ratio ETR ; species sensitivity distribution SSD ; predicted environmental concentrations PECs ;

    Sammanfattning : Pesticide use in rice farming is a common practice in the Mekong Delta and poses ecological risks to aquatic organisms, the environment, and human health. This study focused on the ecological risk assessment of pesticide use in rice farming using the PRIMET model as a decision support tool to evaluate the risks of pesticide exposure, ecotoxicity, and risk characterization, as well as employing the species sensitivity distribution (SSD) assessment model to calculate the potentially affected fraction (PAF) of species based on the computed predicted environmental concentrations (PECs) from PRIMET. LÄS MER

  5. 4. Evaluation of novel climate-friendly feed for Nile tilapia in Tanzania

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Vilma Johansson; [2023]
    Nyckelord :Black soldier fly; novel fish feed; circular aquaculture; sub-Sahara aquaculture; greenhouse gas emissions; LCA; Nile tilapia;

    Sammanfattning : Tanzania is a country located in sub-Sahara Africa by the Indian Ocean. Tanzania's aquaculture sector is small but has the potential to grow. As the population grows, so does the demand for food. Nile tilapia is the most cultured fish in Tanzania due to its hardiness, fast growth and tolerance to many environmental conditions. LÄS MER

  7. 5. Husdjurens roll för att uppfylla FN:s hållbarhetsmål

    Kandidat-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Amanda Algotson; [2023]
    Nyckelord :Agenda 2030; globala hållbarhetsmålen; husdjur; djurvälfärd; nötkreatur; gris; fjäderfä; akvakultur;

    Sammanfattning : År 2015 beslöt FN om 17 hållbarhetsmål som ingår i Agenda 2030. De finns för att världen ska bli fri från hunger och fattigdom, för att samhället ska bli mer jämställt och för att skydda miljön. LÄS MER