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Full-Text Articles in Physical Sciences and Mathematics
Examining Melt Pond Dynamics And Light Availability In The Arctic Ocean Via High Resolution Satellite Imagery, Austin Wesley Abbott
Examining Melt Pond Dynamics And Light Availability In The Arctic Ocean Via High Resolution Satellite Imagery, Austin Wesley Abbott
OES Theses and Dissertations
As the Arctic experiences consequences of climate change, a shift from thicker, multi-year ice to thinner, first-year ice has been observed. First-year ice is prone to extensive pools of meltwater (“melt ponds”) forming on its surface, which enhance light transmission to the ocean. Changes in the timing and distribution of melt pond formation and associated increases in under-ice light availability are the primary drivers for seasonal progression of water column primary production and warming. Observations of melt pond development and distribution require meter scale resolution and have traditionally been limited to airborne images. However, recent advances in high spatial resolution …
Lipid Markers And Compound-Specific Carbon Isotopes As Diet And Biosynthesis Reflectors In The Northern Neptune Whelk Neptunea Heros, H. Rodger Harvey, Rachel Mcmahon, Karen A. Taylor
Lipid Markers And Compound-Specific Carbon Isotopes As Diet And Biosynthesis Reflectors In The Northern Neptune Whelk Neptunea Heros, H. Rodger Harvey, Rachel Mcmahon, Karen A. Taylor
OES Faculty Publications
A suite of lipid biomarkers plus compound-specific carbon isotopes of major sterols were determined in muscle tissues across increasing sizes of northern Neptune whelks Neptunea heros, developing eggs and potential diets to link trophic patterns, metabolism and carbon sources on the Chukchi Sea shelf. Analysis of primary prey included the northern clam Astarte borealis, water column particulate organic matter (POM) and surface sediments near the collection sites. Sterols specific to major algal groups along with algal-derived polyunsaturated fatty acids (C20:5n-3, C20:4n-3, C22:6n-3) in whelk muscle tissue reflected the importance of algal primary production to benthic consumers and its …