Sökning: "whales"

Visar resultat 1 - 5 av 24 uppsatser innehållade ordet whales.

  1. 1. Social-Ecological Resilience and Whale Conservation

    Magister-uppsats, Stockholms universitet/Juridiska institutionen

    Författare :Sandra Wilbrink; [2023]
    Nyckelord :social-ecological resilience; international law; whale conservation; biodiversity protection;

    Sammanfattning : Whale species face numerous man-made threats, such as pollution, whaling, climate change and whale-watching, that threaten their survival. International environmental law has several regulations in place that aim, either directly or indirectly, at conserving whales. LÄS MER

  3. 2. Making nets more acoustically visible : Floats as passive mitigation measures to reduce bycatch of harbour porpoise (Phocoena phocoena) in gillnets

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Frida Rosshagen; [2023]
    Nyckelord :toothed whales; harbour porpoise; Phocoena phocoena; incidental capture; bycatch; fisheries; fishing gear; ; gillnet; mitigation; reduction; low-cost; passive acoustic reflector; float;

    Sammanfattning : Incidental capture in fishing gear is today affecting at least 112 marine mammal species worldwide and for many smaller toothed whale species (Odontocete), gillnets are considered to be the largest problem. Although some effective mitigation measures exists, these are often context specific and many might be hard to implement due to reasons such as high costs and maintenance. LÄS MER

  4. 3. Evolutionary Theories of Menopause

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Fanny Hägg; [2020]
    Nyckelord :Menopause; Post-reproduction; The grandmother hypothesis; The reproductive conflict hypothesis; Inclusive fitness; Kin selection; Odontoceti; Orcinus orca;

    Sammanfattning : Menopause, the cessation of female reproduction well before death, is a puzzling phenomenon, because evolutionary theory suggests there should be no selection for survival when reproduction has ended. Nevertheless, menopause does exist in a limited number of species, and besides humans it has predominately evolved among toothed whales (Odontoceti). LÄS MER

  5. 4. DER BLÅSER HAN! (There he blows!) : On sailors, whales, and relationships based on not-knowing

    Kandidat-uppsats, Stockholms universitet/Socialantropologiska institutionen

    Författare :Guadalupe Canale; [2020]
    Nyckelord :Ontology; Opacity; Anthropomorphism; Technology; Kinship; Maritime anthropology; Multispecies ethnography; Environmental Humanities;

    Sammanfattning : In a town in northern Norway, the sailors on whale-watching boats meet whales in their daily work. Many have up to 30 years’ experience in locating the whales, through sight or submerged microphones, and in positioning the boats in non-intrusive ways that respect the whales’ life in the open water. LÄS MER

  7. 5. Säl och valjakt ur ett långtidsperspektiv

    Master-uppsats, Uppsala universitet/Institutionen för arkeologi och antik historia

    Författare :Hanna Sjöberg; [2020]
    Nyckelord :Sälar; valar; jakt; Gotland; Östersjön;

    Sammanfattning : Hunting for marine mammals, mainly the seal species found in the Baltic Sea has long been on Gotland. Much research has been done on how and when seals have been hunted, mainly in the cave Stora Förvar on Stora Karlsö off the west coast of Gotland and on Ajvide. LÄS MER