Essays about: "marine mammals"

Showing result 6 - 10 of 16 essays containing the words marine mammals.

  1. 6. Sealing the fate of arctic marine mammals : challenges and opportunities of non-legislative international organisations

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Anastasiia Suslina; [2021]
    Keywords : Arctic; marine mammals; Arctic Council; Conservation of Arctic Flora and Fauna; ecosystem-based management; North Atlantic Marine Mammal Commission;

    Abstract : The Arctic is changing rapidly as a result of climate change, putting endemic marine mammal species in greater danger than ever. In such circumstances, the management process in international organizations becomes more urgent. READ MORE

  3. 7. Development of northern pike (Esox lucius) populations in the Baltic Sea, and potential effects of grey seal (Halichoerus grypus) predation

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecka Svensson; [2021]
    Keywords : diet analysis; ; marine mammals; predator-prey; socio-economic; sport fishing; recreational fisheries;

    Abstract : Worldwide, marine mammal populations are increasing after considerable efforts to turn the downward trends caused by hunting, accidental mortality and pollution. The ecosystem effects from the increases of these top predators may be pronounced, but are in most cases poorly known. READ MORE

  4. 8. Hajfiske : påverkan på hajpopulationer, ekosystem och människa

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Katarina Grepp; [2016]
    Keywords : hajfiske; hajfensfiske; fenor; ekosystem; hajbrosk;

    Abstract : Sharks are currently spread throughout the world and represent about 1,5 % of the amount of the world's fish species. They belong to the class cartilaginous fish, which means they have a skeleton composed of cartilage, compared to the majority of other fish having a skeleton composed of bone. READ MORE

  5. 9. Method Development for Quantification of Different Persistent Organic Pollutants in Ringed Seal (Phoca hispida) from the Baltic Sea

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Amelie Nordström; [2016]
    Keywords : Ringed seal; Baltic Sea; Persistent Organic Pollutants; Sample pre-treatment;

    Abstract : Persistent organic pollutants such as polychlorinated biphenyls (PCBs), DDT and polybrominated diphenyl ethers (PBDEs) tend to accumulate in biota and are transferred through the aquatic food web, which result in a high accumulation in marine mammals. In recent years various novel flame retardants (nBFRs), which have replaced the banned PBDEs, have also started to occur in the environment. READ MORE

  6. 10. Miljökemikaliers påverkan på isbjörnars (Ursus maritimus) reproduktion och hur dessa kemikalier når djuren

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Jessica Isaksson; [2015]
    Keywords : isbjörn; slädhund; reproduktion; miljökemikalier; spridning; könsmognad; könsorgan; missbildningar; polyklorerade bifenyler; organiska klorföreningar; polar bear; sledge dog; reproduction; environmental chemicals; distribution; sexual maturation; genitals; malformations; polychlorinated biphenyls; organochlorine compounds;

    Abstract : Environmental chemicals are transported to the Arctic through the air and oceans, once within the Arctic they spread through rivers, lakes and other watercourses. Polar bears and sledge dogs in-gest high concentrations of environmental chemicals since many of the chemicals are fat-soluble and their diet mainly consists of marine mammals. READ MORE