Avancerad sökning
Visar resultat 1 - 5 av 11 uppsatser som matchar ovanstående sökkriterier.
1. The implications of heavy fuel oil ban in arctic waters for sustainable arctic shipping
Master-uppsats, Göteborgs universitet/Institutionen för marina vetenskaperSammanfattning : The increased temperature in the polar regions is one of the significant impacts of global warming and consequential climate change. In the Arctic, regional warming leads to the accelerated loss of sea ice caps, which has opened up new international shipping routes. LÄS MER
2. Diatoms from the late Holocene of the western Chukchi Sea, Arctic Ocean: environmental signals and palaeoceanography
Master-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaperSammanfattning : The sediment Core SWERUS-L2-2-PC1 (2PC) retrieved from the Chukchi Sea, Arctic Ocean sits in an oceanographically dynamic location at the Arctic-Pacific Ocean gateway. The 8.3 m-long core was retrieved in Herald Canyon at the marginal ice zone at 57 m depth. LÄS MER
3. Ensjön under 200 år : En stratigrafisk studie om vad bevarade kiselalger i sediment kan berätta om klimat och markanvändning
Kandidat-uppsats, Södertörns högskola/Institutionen för naturvetenskap, miljö och teknikSammanfattning : Since 1750, human emissions of greenhouse gases have created a temperature increase, affecting the whole world. Diatoms, single-celled microscopic algae that lives in waters all over the world, have different environmental preferences such as the water depth at which the thrive, salinity, nutrients, pH-values and more. LÄS MER
4. Increased body growth rates of northern pike (Esox lucius) in the Baltic Sea : importance of size-selective mortality and warming waters
Master-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : The northern pike, Esox lucius Linnaeus (1758), is a highly valuable species in recreational fishing, and plays a vital role as a keystone predator in the structuring of fish communities in temperate lakes and brackish waters. Ma-jor declines of pike in the Baltic Sea have been recorded, particular of larger pikes, which may have cascading effects on abundances of lower ecosys-tem compartments. LÄS MER
5. A GIS analysis of electricity production using pressure retarded osmosis in the Nordic countries
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Osmotic power is an unexploited source of renewable energy that is based on mixing two types of water with a different salinity gradient. Osmotic power production (if life-cycle analysis of all necessary components is ignored) does not emit greenhouse gases to the atmosphere as opposed to fossil fuels employed in electricity production today, thus osmotic power does not systemically contribute to global warming and climate change. LÄS MER
