Sökning: "Western Indian Ocean WIO"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Western Indian Ocean WIO.

  1. 1. Managing sea cucumber fisheries and aquaculture : Studies of social-ecological systems in the Western Indian Ocean

    Författare :Hampus Eriksson; Maricela de la Torre-Castro; Juan Carlos Castilla; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sea cucumbers; Bêche-de-mer; Trepang; Echinoderms; Fisheries; Aquaculture; Governance; Trade; Seafood; Tropical seascape; Zanzibar; Mayotte; Western Indian Ocean; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Collecting sea cucumbers to supply the high value Chinese dried seafood market is a livelihood activity available to many people in the Western Indian Ocean (WIO), making it an important part of local economies. These fisheries are generally not successfully managed and tropical sea cucumber fisheries show continuing signs of decline. LÄS MER

  3. 2. Genetic variability and nitrogenase activity of cyanobacterial communities associated with tropical seagrass meadows (western Indian Ocean)

    Författare :Mariam Hamisi; Birgitta Bergman; Thomas Lyimo; Beatriz Díez; Lucas Stal; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cyanobacteria; nitrogenase activity; diazotrophs; seagrass; western Indian ocean; Plant physiology; Växtfysiologi; Plant Physiology; växtfysiologi;

    Sammanfattning : Tropical seagrass ecosystems are highly productive and important for sustaining marine life and associated coastal societies. In this study, the diversity and role of nitrogen-fixing cyanobacteria associated with five common seagrass genera in coastal regions of the western Indian Ocean (WIO; Tanzania) were examined, as well as the impact of anthropogenic activities. LÄS MER

  4. 3. 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

  5. 4. Seagrasses in warming oceans : physiological and biogeochemical responses

    Författare :Rushingisha George; Mats Björk; Martin Gullström; Teresa Alcoverro Pedrola; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Global warming; greenhouse gas; warming oceans; temperate; tropical; coastal waters; Western Indian Ocean WIO ; tidal variability; seagrass; photosynthesis; respiration; photorespiration; biogeochemical processes; sulphide; methane; nitrous oxide; carbon dioxide; Plant Physiology; växtfysiologi;

    Sammanfattning : The exponential increase of atmospheric greenhouse gas concentrations over the past 50 years has caused a rise in the global average temperature by more than 1ºC above pre-industrial levels. Ninety-three percent of this heat energy has been absorbed and stored by the oceans, increasing their temperatures, particularly in surface waters. LÄS MER

  7. 5. Identification and implications of fish nurseries in tropical and subtropical seascapes

    Författare :Linda Eggertsen; Charlotte Berkström; Nils Kautsky; Johan Eklöf; Simon Pittman; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; marinbiologi; Marine Biology;

    Sammanfattning : Many species of reef fish reside in specific nursery habitats as juveniles. Seagrass meadows, and mangroves are examples of well-recognized nursery habitats, but only recently canopy-forming seaweeds have been found to provide important habitats for some fish species in the tropics. LÄS MER