Essays about: "South Atlantic"

Showing result 1 - 5 of 22 essays containing the words South Atlantic.

  1. 1. Potential migration routes for the alien species, pink salmon (Oncorhynchus gorbuscha) : investigating access in west and south coast rivers of Sweden

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecca Martin; [2023]
    Keywords : invasive; alien species; salmonid; anadromous; migration barriers;

    Abstract : Invasive alien species are one of the main drivers of ecosystem change globally, presenting challenges to biodiversity that take many forms Pink salmon, Oncorhynchus gorbuscha, has recently been observed on the Swedish west coast where its presence is the result of secondary spreading from populations introduced to the White and Barents Seas in northwestern Russia. In Sweden, O. READ MORE

  3. 2. The Biogeographical Extent and Global Synchronicity of the Late Miocene Reticulofenestra pseudoumbilicus Paracme

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Joseph Asanbe; [2022]
    Keywords : late Miocene; biogenic bloom; nannofossil biostratigraphy; paleo-productivity; Reticulofenestra size variation;

    Abstract : Previous biostratigraphic studies in the Indian Ocean, equatorial Pacific, Atlantic Ocean and the Caribbean Sea document the temporal disappearance of Reticulofenestra pseudoumbilicus in the late Miocene (Tortonian age). This interval has been subsequently defined as the R. pseudoumbilicus paracme. READ MORE

  4. 3. Submarine Alteration of Seamount Rocks in the Canary Islands: Insights from Mineralogy, Trace Elements, and Stable Isotopes

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Aduragbemi Oluwatobi Sofade; [2018]
    Keywords : Canary Islands; seamounts; submarine alteration; trace elements; nannofossils; Kanarieöarna; djuphavsberg; undervattensomvandling; spårämnen; nanofossiler;

    Abstract : Seamounts play an important role in facilitating the exchange of elements between the oceanic lithosphere and the overlying seawater. This water-rock interaction is caused by circulating seawater and controls the chemical exchange in submarine and sub-seafloor rocks. READ MORE

  5. 4. Genetics of bird migration : Study on East Siberian willow warblers (Phylloscopus trochilus)

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Kristaps Sokolovskis; [2017]
    Keywords : birds; willow warblers; phylloscopus trochilus; leaf warblers; migration; genetics; stable isotopes; eastern siberia;

    Abstract : Seasonal long-distance bird migration between wintering and breeding grounds is oneof the most remarkable phenomena in the history of life on earth. Migration strategies androutes vary greatly. Some birds migrate in social groups whilst others migrate alone at night,some cross few hundreds of km whilst others cover thousands of km. READ MORE

  6. 5. Vegetation responses to Late Glacial climate shifts as reflected in a high resolution pollen record from Blekinge, south-eastern Sweden, compared with responses of other climate proxies

    University essay from Lunds universitet/Geologiska institutionen

    Author : Artemis Karlatou-Charalampopoulou; [2016]
    Keywords : lake sediments; Blekinge; SE Sweden; Pleistocene-Holocene boundary; loss on ignition; pollen analysis; high time-resolution; time lags; Earth and Environmental Sciences;

    Abstract : Denna studie fokuserar på en nästan 1700 år lång sjösedimentsekvens från Hässeldala Port i centrala Blekinge, sydöstra Sverige. Den omfattar övergångsperioden mellan pleistocen och holocen, eller mer precist eventen GI-1a och GS-1 samt början av den holocena epoken i iskärnorna, vilket motsvarar de sydsvenska pollenzonerna sen allerød till tidig preboreal. READ MORE