This past spring, estuarine ecologist Denise Breitburg and her postdoctoral fellow, Richard Fulford (both of the Smithsonian Environmental Research Center (SERC)) brought together 20 ecologists and fisheries biologists from academic institutions, government agencies and the Smithsonian for a three-day workshop to attempt to “disentangle” the effects of eutrophication (excessive nutrient input) ...

Estuarine systems are the major conduits for the transfer of nitrate from agricultural and other terrestrial-anthropogenic sources into marine ecosystems. Within estuarine sediments some microbially driven processes (denitrification and anammox) result in the net removal of nitrogen from the environment, while others (dissimilatory nitrate reduction to ammonium) do not. In this study, molecular...

Four sediment cores were collected from selected locations of Sundarbans mangroves and Hooghly estuary, northeast coast of India to establish (210)Pb geochronology and trace metal distribution in sediments. Core sites were chosen to reflect a matrix of variable anthropogenic input and hydrological conditions. The vertical distribution of (210)Pb(xs) ((210)Pb(total)-(226)Ra) provided reliable ge...

The Chesapeake Bay plays an important role in transforming riverine nutrients before they are exported to the adjacent continental shelf. Although the mean nitrogen budget of the Chesapeake Bay has been previously estimated from observations, uncertainties associated with interannually varying hydrological conditions remain. In this study, a land-estuarine-ocean biogeochemical modeling system i...

SCHOCH, G.C. and CHENELOT, H., 2004. The Role of Estuarine Hydrodynamics in the Distribution of Kelp Forests in Kachemak Bay, Alaska. Journal of Coastal Research, SI(45), 179–194. West Palm Beach (Florida), ISSN 0749-0208. Understanding the circulation and exchange rates of water masses in an estuary is critical to understanding the movement and recruitment patterns of planktonic propagules and...

BACKGROUND Estuaries are highly productive ecosystems that can export organic matter to coastal seas (the 'outwelling hypothesis'). However the role of this food resource subsidy on coastal ecosystem functioning has not been examined. METHODOLOGY/PRINCIPAL FINDINGS We investigated the influence of estuarine primary production as a resource subsidy and the influence of estuaries on biodiversit...

in general, estuaries may be classified variously according to inlet dynamics, geomorphology orwhether they are tide or river dominated or, on a combination of all three factors. in kwazulu-natal (kzn),south africa, the four recognised estuary types are temporary opened-closed estuaries (toces), permanently opened estuaries, estuarine lakes and river mouths. since physico-chemical parameters ar...

in general, estuaries may be classified variously according to inlet dynamics, geomorphology orwhether they are tide or river dominated or, on a combination of all three factors. in kwazulu-natal (kzn),south africa, the four recognised estuary types are temporary opened-closed estuaries (toces), permanently opened estuaries, estuarine lakes and river mouths. since physico-chemical parameters ar...

The Black Sea estuaries represent interfaces of the sea and river environments. Microorganisms that inhabit estuarine water play an integral role in all biochemical processes that occur there and form unique ecosystems. There are many estuaries located in the Southern-Western part of Ukraine and some of them are already separated from the sea. The aim of this research was to determine the compo...

Estuarine exchange flow plays an important role in the biogeochemical properties between coastal ocean and estuaries. Circulation patterns inside Rias Baixas (NW Iberian Peninsula) have been widely studied, while Ría de Pontevedra has received less attention. A high-resolution ROMS-AGRIF system configuration with three online two-way nesting domains was used validated to enhance knowledge about...