Sökning: "Seaweed farming"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden Seaweed farming.

  1. 6. Macroalgae in tropical seascapes : regulating factors and functions in the coastal ecosystem

    Författare :Gustaf Lilliesköld Sjöö; Max Troell; Nils Kautsky; Lena Kautsky; Alina Szmant; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Macroalgae; Coral reefs; Nutrients; Herbivory; Ecological functions; East Africa; Regulating factors; Anthropogenic influence; Seaweed farming; Bioindicator; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Although macroalgae usually are inconspicuous on pristine coral reefs, they often thrive on reefs that are subjected to various types of anthropogenic disturbance. This thesis consists of five papers and investigates how biomass and composition of macroalgal communities on coral reefs are affected by regulating factors, such as nutrient availability, herbivory, substrate availability and hydrodynamic forces. LÄS MER

  3. 7. Humans and Seagrasses in East Africa : A social-ecological systems approach

    Författare :Maricela de la Torre-Castro; Nils Kautsky; Carl Folke; Patrik Rönnbäck; Edward H. Allison; Stockholms universitet; []
    Nyckelord :seagrasses; social-ecological systems; institutions; seaweed farming; artisanal fisheries; common-pool resources; natural resource management; Zanzibar; Tanzania; East Africa; Western Indian Ocean;

    Sammanfattning : The present study is one of the first attempts to analyze the societal importance of seagrasses (marine flowering plants) from a Natural Resource Management perspective, using a social-ecological systems (SES) approach. The interdisciplinary study takes place in East Africa (Western Indian Ocean, WIO) and includes in-depth studies in Chwaka Bay, Zanzibar, Tanzania. LÄS MER

  4. 8. Sustainable Kelp Aquaculture in Sweden

    Författare :Wouter Visch; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biofouling; cryopreservation; ecosystem services; environmental impact; extractive aquaculture; gametophytes; kelp; population diversity; Saccharina latissima; seaweed cultivation; selective breeding; site selection;

    Sammanfattning : Seaweed aquaculture is gaining more interest worldwide, including Europe. However, despite its long coast seaweed farming is still very minor in Sweden. LÄS MER

  5. 9. Two-Stage Conversion of Land and Marine Biomass for Biogas and Biohydrogen Production

    Författare :Valentine Nkemka; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steam pretreatment; dry digestion; biogas; biohydrogen; Caldicellulosiruptor saccharolyticus; cadmium; anaerobic digestion;

    Sammanfattning : The replacement of fossil fuels by renewable fuels such as biogas and biohydrogen will require efficient and economically competitive process technologies together with new kinds of biomass. A two-stage system for biogas production has several advantages over the widely used one-stage continuous stirred tank reactor (CSTR). LÄS MER

  7. 10. Introduced and indigenous macroalgae : Ecological effects, functions and regulating factors in tropical seascapes

    Författare :Maria Eggertsen; Christina Halling; Charlotte Berkström; Johan Eklöf; Jennifer Smith; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; macroalgae; introduced species; coral-algae interactions; nursery habitats; herbivory; Eucheuma denticulatum; tropical seascape; Marine Ecology; marin ekologi;

    Sammanfattning : Tropical marine shallow-water areas are highly productive systems that promote important ecological functions and biodiversity. Stressors on these systems are intensifying due to increasing anthropogenic disturbances on multiple scales. LÄS MER