Tags: Seminars


SEMINAR: Metabolic Evolution and the Self-Organization of the Biosphere


Seminar- Modeling and predicting sediment dynamics in a heavily used estuary for historic, modern, and future bathymetries

Estuaries provide critical habitat for eelgrass, oysters, and other species, and also serve as natural sediment traps. The sediment regimes of many modern estuaries are evolving, however, in response to land use changes, shoreline alterations, dredging, and other human impacts. In order to assess hydrodynamics and sediment dynamics in the Coos Bay Estuary (Oregon), we used an unstructured finite-volume model (FVCOM) and multi-year measurements…


Seminar- A Sea of Change -- Microbial Dynamics After the Macondo Blowout


Seminar- Where Bottom Water Goes to Die

Andreas Thurnherr will present observations showing where and how AABW is transformed to lighter density classes and upwells and will also discuss how these two requirements for closing the overturning circulation relate to the observed vertical gradients in turbulence levels and to the hypothesized role of bottom boundary layers for upwelling of bottom water.


Seminar- Sediment transport in coastal systems: Implications for water quality and carbon cycling

ABSTRACT: Sediment transport processes affect oxygen and carbon dynamics in coastal environments through a variety of processes.  Seabed resuspension, for example, can vertically mix sediment and water, facilitating decomposition of organic matter and oxygen consumption. Redistribution of inorganic and organic particles among coastal environments, e.g. between marshes and estuaries, can also affect biogeochemical budgets. The relative…


Seminar- Curing Environmental Collapse? Challenges and Opportunities due to Ecosystem Tipping Points


Seminar- All microorganisms must die: mechanisms of mortality in the plankton

Processes that either promote growth or cause mortality drive the abundance of all organisms. For microbes that have a lifespan measured in hours to days, small changes in growth and mortality rates can have significant impacts on their population dynamics. While factors that influence phytoplankton growth are often examined, it has been difficult to parameterize phytoplankton population dynamics due to incomplete estimates of phytoplankton…


Seminar- Modeling abundance and diversity of microbiomes

Abstract:   High-throughput sequencing has advanced our understanding of the role that bacteria and archaea play in marine, terrestrial and host-associated health. Microbial community ecology differs in many ways from macroecology, and therefore new statistical methods are required to analyze microbiome data. In this talk I will present two new statistical methods for the analysis of microbiome data. The first, DivNet, estimates the…


Seminar- Surface-Active Organics in Marine Aerosol Particles


Seminar- The Impact of Organic Compounds on the Cycling of Trace Metals in the Ocean

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