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Full-Text Articles in Life Sciences
Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability, Joseph Matthew D’Addezio
Utilization Of Satellite-Derived Salinity To Study Indian Ocean Climate Variability, Joseph Matthew D’Addezio
Theses and Dissertations
For several decades, researchers have explored Indian Ocean climate variability primarily using numerical models because of a lack of observations. Remote sensing technology has helped overcome this scarcity of observational data, but satellite-derived salinity has only been recently made available by the ESA’s Soil Moisture and Ocean Salinity (SMOS, operating since November 2009-present) and NASA’s Aquarius SAC-D (operated during June 2011-June 2015) satellites. Along with the Lagrangian in situ Argo floats array, these new datasets may be used to validate widely used numerical models, such as the HYbrid Coordinate Ocean Model (HYCOM), and also potentially observe new salinity phenomena that …
Mislabeling Of Commercial Atlantic Cod (Gadus Morhua) Products In Spain, Joshua Helgoe
Mislabeling Of Commercial Atlantic Cod (Gadus Morhua) Products In Spain, Joshua Helgoe
Theses and Dissertations
The mislabeling of commercial fish products is a pervasive, worldwide problem. Most consumers of seafood are unaware this issue directly affects them and can even have negative impacts on their health. Mislabeling occurs when a product’s label is inconsistent with its content. Although mislabeling can be unintentional, deliberate mislabeling is a more common trend to increase profits and/or bypass fishing regulations - a form of economic fraud. Unfortunately, oversight, enforcement, and research are vastly insufficient in relation to the global scale of the problem. In order to add to the small knowledge base on European mislabeling rates, determine if overfished …
Biodegradation Of Highly Weathered Deepwater Horizon Oil, Joel T. Bostic
Biodegradation Of Highly Weathered Deepwater Horizon Oil, Joel T. Bostic
Theses and Dissertations
Oil from the Deepwater Horizon (DwH) spill continues to be found on beaches five years post-spill. Understanding the role of microbes in removing DwH oil from sandy beaches is necessary to elucidate the fate of DwH oil in the coastal zone. Oiled sand patties and non-oiled sand were collected from affected beaches five years post- DwH. Biomarkers in oiled sand indicated that sand patties originated from the DwH spill, however the oil was heavily weathered and dominated by oxygenated hydrocarbons. Microbial communities, as measured by phospholipid fatty acids (PLFA), were present on oiled sand patties and distinct from microbes on …
Development And Application Of Foraminiferal Carbonate System Proxies To Quantify Ocean Acidification In The California Current, Emily B. Osborne
Development And Application Of Foraminiferal Carbonate System Proxies To Quantify Ocean Acidification In The California Current, Emily B. Osborne
Theses and Dissertations
The oceanic uptake of anthropogenic carbon has mitigated climate change, but has also resulted in a global average 0.1 decline in surface ocean pH over 20th century known as ocean acidification. The parallel reduction in carbonate ion concentration ([CO32-]) and the saturation state of seawater (Ω) has caused many major calcium carbonate-secreting organisms such as planktonic foraminifera to exhibit impaired calcification. We develop proxy calibrations and down core records that use calcification and geochemical characteristics of planktonic foraminifera as proxies for the marine carbonate system. This study focuses specifically on the surface ocean chemistry of the California Current Ecosystem (CCE), …