Suspended particulate matter and nutrients Dr. Samantha B. Joye University of Georgia

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

mjoye@uga.edu http://www.marsci.uga.edu/directory/samantha-b-joye Georgia Coastal Ecosystems LTER Project

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

gcelter@uga.edu https://gce-lter.marsci.uga.edu/ Dr. Samantha B. Joye University of Georgia

Dept. of Marine Sciences University of Georgia Athens Georgia 30602-3636 USA

mjoye@uga.edu http://www.marsci.uga.edu/directory/samantha-b-joye Principal investigator 2003-01-01 Kimberley S. Hunter University of Georgia

Dept. of Marine Sciences University of Georgia Athens Georgia 30602 USA

kshunter@uga.edu Research technician 2026

During the Duplex I experiment in August 2003 the Joye lab measured concentrations of nutrients, organics, suspended particles (TSS and CHN) and chlorophyll at seven sampling stations (1-Marsh Landing, 2-Barn Creek, 3-Bend, 4-Moses Hammock, 5- Fork, 6-Flume Dock, and 7-Left Fork) in Duplin River. River samples were collected at high and low water on spring and neap tides. There was a slightly higher TSS load at low water on the spring tide, particularly at stations 4 through 7. Nutrient, particulate and chlorophyll a concentrations varied slightly between sites, depth (surface vs. bottom) and time (spring vs. neap).

Question 2: How do the spatial and temporal patterns of biogeochemical processes, primary production, community dynamics, decomposition, and disturbance vary across the estuarine landscape, and how do they relate to environmental gradients? (more information)

LTER NSF Duplin River Georgia GCE chlorophyll DUPLEX nutrients organics suspended particles Overall geographic extent of the research project -81.301987 -81.263124 31.486493 31.410854 2003-01-01 2003-12-31

National Science Foundation grant numbers OCE-9982133 and OCE-0620959

estuary marsh complex Duplin River - Duplin River transect used for GCE quarterly hydrographic monitoring surveys. Nominal profiling stations are defined at various locations along the Duplin River west of Sapelo Island, Georgia. -81.301987 -81.263124 31.486493 31.410854 Porubsky, W.P., Velasquez, L.E. and Joye, S.B. 2008. Nutrient replete benthic microalgae as a source of labile dissolved organic carbon to coastal waters. Estuaries and Coasts. 31(5):860-876. (DOI: 10.1007/s12237-008-9077-0) http://www.springerlink.com/content/j6531n2472m364u4/?p=4887a9488d8a46098b68a028eafc3b71&pi=0