Sökning: "whales"

Visar resultat 16 - 20 av 24 uppsatser innehållade ordet whales.

  1. 16. The Impact of Polystyrene Microplastics on Filtration Rate in the Marine Copepod Acartia tonsa

    Kandidat-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Len-Oliver Ottvall; [2016]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Microplastic particles are of increasing environmental concern around the globe and recent studies have shown that these particles are present in the entire water column, thus affecting a range of zooplankton including copepods that have a vital role in the marine food web. This study investigated whether microplastic beads have an effect in the filtration rate in the copepod Acartia tonsa, which was collected outside of Ålabodarna located in Oresund. LÄS MER

  3. 17. Whaling in the High Seas - Conservatory obligations and customary law

    Kandidat-uppsats, Lunds universitet/Juridiska fakulteten; Lunds universitet/Juridiska institutionen

    Författare :Malin Lindeberg; [2014]
    Nyckelord :public international law; maritime law; Whaling; Law and Political Science;

    Sammanfattning : This thesis examines what conservatory obligations there are on whaling in customary law and international sources. The focus is on high sea whaling and the main international laws on the high sea concerning living resources and the main whaling conventions. LÄS MER

  4. 18. Ekoturismens inverkan på miljömässiga attityder och beteenden : En kvalitativ studie om individers erfarenhet av valskådning

    Kandidat-uppsats, Södertörns högskola/Institutionen för naturvetenskap, miljö och teknik

    Författare :Frida Åhlin; Veronica Guldbrandsen; [2014]
    Nyckelord :ecotourism; whale watching; sustainable tourism; environmental behavior; ekoturism; valskådning; valsafari; hållbar turism; miljömässigt beteende;

    Sammanfattning : The purpose of this study is to examine if the experience of whale watching can lead to increased knowledge of environmental problems. We also want to find out whether increased knowledge in turn could lead to changing environmental attitudes and behaviors. LÄS MER

  5. 19. Artificial selection for large and small relative brain size in guppies (Poecilia reticulata) results in differences in cognitive ability

    Kandidat-uppsats, Institutionen för biologisk grundutbildning; Zooekologi

    Författare :Andreas Bundsen; [2012]
    Nyckelord :cognition; guppy; artificial selection; brain size;

    Sammanfattning : Vertebrate brain size is remarkably variable at all taxonomic levels. Brains of mammals forexample, range from 0.1 gram in small bats (Chiroptera) to about 8-9 kilos in Sperm whales(Physeter macrocephalus). LÄS MER

  7. 20. A comparison of the discrete call repertoires of Northeast Atlantic killer whales (Orcinus orca)

    Master-uppsats, Institutionen för biologisk grundutbildning

    Författare :Anne-Valérie Duc; [2011]
    Nyckelord :killer whale; acoustic; call repertoire; call comparison;

    Sammanfattning : Although Icelandic and Norwegian killer whales are thought to have been in contact prior to the collapse of the herring stock in the 1960s, the Northeast Atlantic killer whales currently seem to show high site fidelity. So far, photoidentification data have suggested movement of a few individuals between East Iceland and North Scotland, and two calls have been shown to be shared by the Icelandic and Norwegian populations. LÄS MER