Sapelo Reprint

Volume 13, 1978-1979

Heterotrophic Activity Associated with Particulate Size Fractions in a Spartina alterniflora Salit-Marsh Estuary, Sapelo Island, Georgia, USA, and the Continental Shelf Waters
- Author: R. B. Hanson and W. J. Wiebe
- Available data:
  1. Particulate size fraction and heterotrophic activity at different tide cycle.
  2. Heterotrophic activity in creek water in various size fractions over one tide cycle.
  3. Heterotrophic activity in Duplin River in various size fractions over one tide cycle.
  4. Heterotrophic activity in Doboy Sound in various size fractions on Jan. and Feb.
  5. Kinetic parameters of microorganism in various size fractions at mid flood and ebb tides.
  6. Glucose uptake and respiration of various size fractions on Continental Shelf and at edge of Sargasso Sea.
  7. Glucose uptake and respiration of various size fractions with distance from shore off the Altamaha River outlet.
- Time: 1975
- Location: South end of Sapelo Island
Comparison of Nitrogen Fixation Activity in Tall and Short Spartina alterniflora Salt Marsh Soils
- Author: Roger B. Hanson
- Available data:
  1. Effect of substrate concentration on nitrogen fixation rates in short and tall Spartina marsh soil slurries.
  2. Effects of various organic carbon substrates on nitrogen fixation in the tall and short Spartina marsh soil slurries.
  3. Effects of various organic nitrogen compounds on nitrogen fixation in the tall and short Spartina marsh soil slurries.
  4. Effects of various inorganic nitrogen on nitrogen fixation in the tall and short Spartina marsh soil slurries.
  5. Relationship between nitrogen fixation and temperature in low marsh soil slurries.
- Time: 1976
- Location: Lab.
Nitrogen Fixation in a Salt Marsh Amended with Sewage Sludge and Organic Carbon and Nitrogen Compounds
- Author: Roger B. Hanson
- Available data:
  1. In situ nitrogen fixation rates in control and sewage sludge plots in the high marsh.
  2. Nitrogen fixation associated with high marsh Spartina alterniflora.
  3. Nitrogen fixation soil depth profile in the high marsh.
  4. Mean monthly nitrogen fixation rate versus depth in the control and in the sewage sludge plots.
  5. Nitrogen fixation rates in unclipped and clipped Spartina alterniflora plots in two depth zones.
  6. Light and dark nitrogen fixation in various marshes.
- Time: 1976
- Location: Duplin River salt marsh contiguous to Sapelo Island
The origins of detritus in Georgia salt marsh estuaries
- Author: E.B.Haines
- Available data:
  1. Comparision of time- and volume-weighted mean concentrations of total seston, particulate carbon, particulate nitrogen, and dissolved organic nitrogen during flood and ebb tide in a diked S. alterniflora marsh.
  2. Composition of five size fractions of estuarine particulate organic carbon.
  3. Changes in ash free dry weight, microbial biomass during 42d degradation of detrial particles made from 3 marsh plant species.
- Time: 1976
- Location: Georgia estuaries
Origin and Character of Washover fans on the Georgia Coast, U.S.A.
- Author: John R. Deery and James D. Howard
- Available data:
  1. Schematic diagram of washover fan geometry.
- Time: 1977
- Location: Georgia coast
History of Shoreline changes determined by Archaeological Dating: Georgia Coast, U.S.A.
- Author: Chester B. DePratter and James D. Howard
- Available data:
  1. Shoreline dating of Georgia coast.
- Time: NA
- Location: Georgia coast
Pelagic Sargassum Community Metabolism: Carbon and Nitrogen
- Author: Roger B. Hanson
- Available data:
  1. Carbon production and nitrogen fixation by the Sargassum community.
  2. Carbon and nitrogen content and the calculated C:N ratio for the Sargassum community.
  3. Net release rates of dissolved organic carbon and the percentage of photosynthate released from the Sargassum community.
  4. Fate of the released, labelled photosynthate with time from a Sargassum community.
  5. Time course of microbial activity and respiration of ¹⁴C-glucose by suspended Microheterotrophs in the water around a Sargassum community.
- Time: 1975
- Location: R.V. Eastward cruises, E-16-75 and E-3-75
Ecological Processes Characteristic of Coastal Spartina Marshes of the South-eastern U.S.A.
- Author: Richard G. Wiegert
- Available data:
  1. Estimated annual net production and degradation of carbon by ecological processes active in the air, water and sediments.
  2. Computed daily average export of carbon moving in and out a creek in Sapelo Island.
- Time: 1978
- Location: Sapelo Island
Coastal Salt Marshes
- Author: Robert W. Frey
- Available data:
  1. Annual net productivity of cordgrasses in Georgia Salt Marshes(1973).
  2. Characteristics of salt marsh peat, Barnstable Harbor, Massachusetts(1965).
  3. Proportions of sand, silt, and clay in salt marsh sediment, Sapelo Island(1977).
  4. Textural characteristics of salt marsh sediment, Sapelo Island(1977).
  5. Geochemical aspects of salt marsh sediments near Savannah, Georgia(1973).
  6. Mean oxygen demand and depletion capacity of estuarine-marsh sediments, Wassaw Sound, Georgia(1961, 1962, 1968).
  7. Average rates of biodeposition by Georgia salt marsh invertebrates(1976).
  8. Shear strength of selected tidal sediments, California(1969, 1972).
  9. Characteristic sedimentary structures in Mugu Lagoon marsh, California(1971).
- Time: 1961-1977
- Location: Georgia Salt Marshes
Growth Dynamics of Cordgrass, Spartina alterniflora Loisel., on Control and Sewage Sludge Fertilized Plots in a Georgia Salt Marsh
- Author: Marine Institue of the University of Georgia
- Available data:
  1. Seasonal variation of live plant biomass in the study plot.
  2. Seasonal variation of dead plant aboveground biomass.
  3. Seasonal changes of the number of young live shoots.
  4. Seasonal variation of belowground macro-organic matter.
- Time: 1976-1977
- Location: Salt Marshes adjacent to Saplo Island
Distribution and Movement of Toxaphene in anaerobic Saline Marsh Soil.
- Author: John L. Gallagher, Sarah E. Robinson, William J. Pfeiffer and Denise M. Seliskar
- Available data:
  1. Toxaphene concentration profiles of whole cores from a Spartina alterniflora salt marsh along Dupree Creek.
  2. Toxaphene concentration profiles of whole cores from a Spartina alterniflora salt marsh along Terry Creek.
  3. Toxaphene concentration profiles in the macro-organic matter from cores taken from a Spartina alterniflora salt marsh along Terry Creek.
  4. Toxaphene concentration profiles in the macro-organic matter free soil from a Spartina alterniflora salt marsh along Terry Creek.
  5. Toxaphene in whole core segment, macro-organic matter and remaining soil from cores of a Spartina alterniflora marsh near the junction of Terry and Dupree creeks near Brunswick.
  6. Toxaphene concentration in various parts of a dissected Spartina alterniflora salt marsh.
  7. Concentration of toxaphene in macro-organic matter and soil from cores of Spartina alterniflora marsh injected with pesticide at the 2.5cm depth.
  8. Distribution of toxaphene in various compoents of the Spartina alterniflora soil complex.
- Time: 1974
- Location: Marsh bordering Dupree and Terry near Brunswick.
A Method for the Determination of chlorophyll a in Samples Containing Degradation Products
- Author: David E. Whitney and W. Marshall Darley
- Available data:
  1. Comparsion of acetone and hexane Chl a and pheopigment determinations on several types of samples.
- Time: 1977
- Location: Intertidal mudflats off Sapelo Island.
Growth and Element Compositional Responses of Sporobolus virginicus(L.) Hunth. to Substrate Salinity and Nitrogen
- Author: John L. Gallagher
- Available data:
  1. Soil and plant characteristics from stands of Sporobolus virginicus in salt marshes adjacent to Sapelo Island.
  2. Culm density and Various morphological features of Sporobolus virginicus grown in six salinities of nutrient medium.
  3. Composition of shoots, roots, rhizomes and whole plants of Sporobolus virginicus grown in six salinities of nutrient medium.
- Time: 1977
- Location: Salt Marshes around Sapelo Island.
Energy Transfer via Protein-protein interaction in Renilla Bioluminescence
- Author: William W. Ward and Milton J. Cormier
- Available data:
  1. Species specificity in coelenterate energy transfer.
  2. Chemical modification of GFP amino groups.
- Time: 1977
- Location: Experiment.
Anaerobic Microbial Community Metabolism in Spartina alterniflora soils.
- Author: R.R. Christian and W.J. Wiebe
- Available data:
  1. Glucose turnover times and label distribution in mud slurries from tall and short Spartina alterniflora regions.
  2. Responses to water restriction perturbation.
- Time: 1977
- Location: Experiment, samples were taken from Duplin Estuary watershed.
Effect of the Spartina alterniflora root-rhizome system on salt marsh soil denitrifying bacteria
- Author: B.F. Sherr and W.J. Payne
- Available data:
  1. Seasonal depth distribution of N₂O reductase activity in short Spartina alterniflora soil.
  2. Seasonal depth distribution of N₂O reductase activity in tall Spartina alterniflora soil.
  3. Effect of in situ clipping and pruning SS shoots and roots on N₂O reductase activity of bacteria in the soil.
  4. Effect of in situ NH₄NO₃ and glucose treatments on the N₂O reduction potential of bacteria in SS marsh soils.
- Time: 1975-1976
- Location: Salt marshes at Sapelo Island.
Nitrogen Pools in Georgia Coast Waters
- Author: Evelyn B. Haines
- Available data:
  1. Concentraions of dissolved and particulate nitrogen in coastal shelf water 0-10km from shore.
  2. Concentraions of dissolved and particulate nitrogen in slack low and slack high tidal creek.
  3. Changes in nitrogen content of seawater in a tidal creek draining a 0.5 hectare diked spartina alterniflora salt marsh, during a tide on December 7, 1976.
  4. Differences between average concentrations measured on flood and on ebb tides for salinity, ammonia, nitrate, nitrite, DON and PN.
- Time: 1975-1976
- Location: Georgia coast near Sapelo Island.
Seasonal Patterns of CO₂ and Water Vapor Exchange of Juncus Roemerianus scheele in a Georgia Salt Marsh
- Author: J.R. Giurgevich and E.L. Dunn
- Available data:
  1. Seasonal patterns of net photosynthesis in response to quantum flux at several temperature.
  2. Seasonal changes in leaf density.
  3. Seasonal patterns of net photosynthesis, leaf conductance and mean vapor pressure difference in response to temperature.
  4. Seasonal patterns of transpiration, water use efficiency of photosynthesis in response to temperature.
  5. Seasonal change in dark respiration rates.
- Time: 1977
- Location: Salt marsh at Sapelo Island.
Food Sources of Estuarine Invertebrates Analyzed using ¹³C/^12>C Ratios
- Author: Evelyn B. Haines and Clay L. Montague
- Available data:
  1. ¹³C/^12>C ratios of food sources for invertebrates in a Georgia estuary.
  2. Individual variability of ¹³C/^12>C ratio for 3 species of crab in a Spartina alterniflora marsh.
  3. Estuarine fauna ¹³C/^12>C ratios in relation to potential food sources.
  4. ¹³C/^12>C ratios of salt marsh invertebrates.
- Time: 1978
- Location: Experiment, samples collected from salt marsh estuaries near Sapelo Island.
Utilization of dissoved organic carbon by natural populations of epibenthic salt marsh diatoms
- Author: W. Marshall Darley, Connie T. Ohlman and Barbara B. Wimpee
- Available data:
  1. Utilization of ¹⁴C-substrates by natural algal populations.
  2. Utilization of combined substrates by natural algal populations in the dark.
- Time: 1976-1977
- Location: Experiment, samples collected from the mudflats on South End Creek, Sapelo Island.
The Effects of Fertilization on Nitrogen Distribution in a Spartina alterniflora Salt Marsh
- Author: Alice G. Chalmers
- Available data:
  1. Concentration of nitrogen in top 5cm of soil.
  2. Exchangeable NH₄⁺ int the top 30cm soil column.
  3. Depth profile of yearly average NH₄⁺ concentration.
  4. Live Spartina alterniflora between 1975-1976.
  5. % N Spartina alterniflora between 1975-1976.
  6. Time: 1975-1976
  7. Location: Short S. alterniflora marsh, Sapelo Island.