Primary Productivity of Coastal Marshes in Mississippi

Effects of global climate change on coastal salt marshes

A methodology combining ecological modelling with geographical information analysis and remote sensing was employed to determine the effects of sea-level rise in estuarine salt marshes, using the Tagus estuary (Portugal) as a case study. The development of salt marsh vegetation was simulated separately for C3 and C4 plants, using a combined biogeochemical and demographic model. This simulation,...

Spatial response of coastal marshes to increased atmospheric CO2.

The elevation and extent of coastal marshes are dictated by the interplay between the rate of relative sea-level rise (RRSLR), surface accretion by inorganic sediment deposition, and organic soil production by plants. These accretion processes respond to changes in local and global forcings, such as sediment delivery to the coast, nutrient concentrations, and atmospheric CO2, but their relative...

Blue Carbon in Freshwater / Brackish Marshes on the Barrier Islands of Virginia: Aboveground Net Primary Productivity and Carbon Pools

BLUE CARBON IN FRESHWATER / BRACKISH MARSHES ON THE BARRIER ISLANDS OF VIRGINIA: ABOVEGROUND NET PRIMARY PRODUCTIVITY AND CARBON POOLS Emily Caitlin Adams Old Dominion University, 2015 Director: Dr. Frank P. Day “Blue carbon” is a relatively new concept describing carbon distributed tidally and sequestered via net production within coastal ecosystems, including seagrass beds, mangrove forests, ...

First Record of Bonefish, Albula vulpes, from Mississippi Coastal Waters

Influence of atmospheric nutrients on primary productivity in a coastal upwelling region

[1] Atmospheric deposition is an important source of nutrients to the coastal and open ocean; however, its role in highly productive upwelling regions like coastal California has not been determined. Approximately 0.1%–0.2% of new production is attributable to atmospheric deposition of nitrogen (N) annually, but if the estimate is expanded to encompass the effects of iron (Fe), aerosols may sup...