-
Distribution of terrestrially derived dissolved
organic matter on the southern U.S. continental shelf
- Author: Mary Ann Moran, Lawrence R. Pomeroy, Edward S. Sheppard, Larry P. Atkinson and Robert E. Hodson
- Available data:
- Concentration of DOC, humic C, and vanillyl lignin phenols and ratio of vanillic acid
to vanillin in humic substances isolated from continental-shelf water samples.
- Lignin phenol concentration on the continental shelf in October and November 1987.
- Salinity on the continental shelf in October and November 1987.
- Relationship of lignin phenol concentration to salinity during four cruises on the continental shelf.
- Lignin phenol concentrations and salinity on the continental shelf in July 1987.
- Lignin phenol concentrations and salinity on the continental shelf in September 1988.
- Composition of dissolved organic matter in water samples from marsh, riverine, and estuarine
environments along the coast.
- Time: 1987-1989
- Location: Coast between Savannah, GA and Cape Canaveral, FL.
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Population dynamics of the tanaid Hargeria rapax in a tidal marsh
- Author: R. T. Kneib
- Available data:
- Temporal patterns in reproductive activity and population density in middle Duplin site.
- Mean densities of tanaids from 40 cores along Duplin River.
- Scatter-plot relating salinity and tanaid densities in middle Duplin site.
- Relationship between average daily air temperature and average growth rate of tanaids.
- Regression constants describing monthly relationships between total length and dry weight.
- Monthly length-weight relationships for tanaids from middle Duplin site.
- Observed and expected standing stocks of tanaids on each sampling date in middle Duplin site.
- Time: 1985-1986
- Location: Salt marsh on Sapelo Island
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Ergosterol content of living and submerged decaying leaves and twigs
of red mangrove
- Author: S.Y. Newwll and J.W. Fell
- Available data:
- Ergosterol contents of leaves and woody material of red mangroves.
- Number of occurrences of species of Halophytophthora in samples of mangrove materials.
- Time: 1992
- Location: Bahama Island, Little San Salvador island and Jack Island, FL.
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Patterns of Nitrogenase Activity Associated with Standing,
Decaying Shoots of Spartina alterniflora
- Author: S.Y. Newell, C.S. Hopkinson and L.A. Scott
- Available data:
- Rates of acetylene reduction to ethylene for rinsed, standing leaves of Spartina alterniflora.
- Rates of acetylene reduction to ethylene for unrinsed, dead, standing leaves of Spartina alterniflora.
- Rates of acetylene reduction to ethylene for dead, standing leaves of Spartina alterniflora.
- Rates of acetylene reduction to ethylene for dead standing, tall-form leaves of Spartina alterniflora.
- Rates of acetylene reduction to ethylene for tall-form standing green leaves of Spartina alterniflora.
- Mean rates of acetylene reduction to ethylene per g organic mass vs. percent ash.
- Maximum mean rates of acetylene reduction to ethylene reported for decaying material of standing smooth
cordgrass and some other vascular plants.
- Time: 1989
- Location: Experiment
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Foliar release of dimethylsulfonioproprionate from Spartina alterniflora
- Author: J. Dean Pakulski and R.P. Kiene
- Available data:
- Seasonal variation in foliar DMSP release rates by live leaves and extrafoliar DMSP accumulations.
- Diel variation in foliar DMSP release rates in 1988 and 1989.
- Diel variation in extrafoliar DMSP accumulations in 1988 and 1989.
- Seasonal pattern of area normalized tidal DMSP release 1988-89 and area normalized
extrafoliar DMSP accumulations 1988-89.
- Time course of DMSP release in May and August 1988 and time course of DMSP concentrations
in suspensions of particulate material obtained from 5 plants in August 1988.
- Time course of DMS production in DMSP amended and unamended Duplin River water.
- Time: Bimonthly at high tides, 1988-1989
- Location: South End Creek, Sapelo Island
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Autumn Distribution of marine Pythiaceae across a mangrove-saltmarsh boundary
- Author: Steven Y. Newell
- Available data:
- Frequencies at each site of species of Halophytophthora and Pythium on naturally occurring,
submerged, decaying leaves of trees, shrubs and vines.
- Frequencies at each site of species of Halophytophthora and Pythium on standing, decaying
leaves of smooth cordgrass.
- Time: 1991
- Location: Georgia and Florida coastal marine sites
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Early diagenesis of lignin-associated phenolics in the salt
marsh grass Spartina alterniflora
- Author: R.I. Haddad, S.Y. Newell, C.S. Martens, and R.D. Fallon
- Available data:
- Stability ratios of four major phenolic families vs. time.
- Percentage of total lignin mass loss attributed to each LOP phenolic family.
- Intensive C/V and S/V vs. time.
- S/V vs. C/V results.
- Stability ratio results vs. time for individual phenols within the vanillyl and
syringyl phenolic families.
- Time: 1982 and 1984
- Location: Salt marsh near Beaufort, NC and in Sapelo Island, GA
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Diet of Larval Weakfish and Prey Abundance in Delaware Bay
- Author: D.M. Goshorn and C.E. Epifanio
- Available data:
- Horizontal and temporal distributions of weakfish larvae collected in Delaware Bay during
the 1986 and 1987 spawning seasons.
- Percent composition by dry weight of the diets of six size-classes of larval weakfish.
- Percentages of weakfish larvae of six size-classes that contained no food in their guts.
- Percentages of early-stage and late-stage weakfish larvae at different prey abundances.
- Time: 1986 and 1987
- Location: Delaware Bay
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Taphofacies implications of infaunal foraminiferal assemblages
in a Georgia salt marsh, Sapelo Island
- Author: Susan T. Goldstein and Emily Bagwell Harben
- Available data:
- Classification of salt marsh habitats and subenvironments.
- Relative abundance of live and total individuals in surface and subsuface sediments at sampling sites.
- Time: 1988
- Location: Salt Marshes on the southern end of Sapelo Island
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Integration of GPS, Remote Sensing, and
GIS Techniques for Coastal Resource Management
- Author: R. Welch, M. Remillard and J. Albert
- Available data:
- Rates of change for land-use/land-cover categories in the SINERR and
Sapelo Island determined by GIS overlay analysis.
- GIS summary statics documenting changes in the total size of Sapelo Island
between 1953 and 1993.
- Land-use/land-cover changes for marshland, forest, logged forest, clearing,
and residential categories:1953 to 1993.
- Time: 1989
- Location: Saplo Island
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Evidence for Ammonia as a Natural Cue for Recruitment
of Oyster Larvae to Oyster Beds in a Georgia Salt Marsh
- Author: W.K. Fitt and S.L. Coon
- Available data:
- Characteristics of creek water from Sapelo Island on 19-20 May 1990 in relation to time of day
- Concentration of total NH3-NH4+, and the range of
corresponding concentrations of NH3 in oyster bed habitas on Sapelo Island.
- Relation of total NH3-NH4+ measured to volume of
water sampled from oyster-shell surfaces on Sapelo Island.
- Time: 1990
- Location: Sapelo Island.
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Local population dynamics of estuarine blue crabs:
abundance, recruitment and loss
- Author: H. Carlton Fitz and Richard G. Wiegert
- Available data:
- Relative abundance of 4 size classes of blue crabs within the upper Duplin River.
- Sex ratio and no. of pubertal females within the upper Duplin River.
- Tagged blue crabs captured by a commercial crabber in the Duplin River and Doboy Sound
after they emigrated from the primary sampling site.
- Mean no. of crabs per trawl sample at the primary site in the upper Duplin River and mid-river site.
- Time: 1985-1987
- Location: Duplin River and Doboy Sound of Sapelo Island.
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Microbial Sources and Sinks for Methylated Sulfur
Compounds in the Marine Environment
- Author: Ronald P. Kiene
- Available data:
- Average values of DMSP/Chl a obtained in estuarine, shelf and oceanic zones along
transects in Delaware and Chesapeake Bays.
- Depth profiles of DMS, dissolved DMSP,particulate DMSP and total DMSP obtained
during PSI-3 in April 1991.
- Potential C1 substrates found in seawater and their sources.
- Time: 1991
- Location: Delaware and Chesapeake Bays, and the mouth of Puget Sound.
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Distribution of Atmosphere Sulphur
Species over Various Wetland Regions in the Southeastern U.S.A.
- Author: Harald Berresheim
- Available data:
- Typical chromatograms obtained from cryogenic sample analysis.
- Summary of atmospheric concentrations of reduced sulphur gases and oxidized aerosol sulphur
species and aerosol nitrate measured in different environments.
- Measured aerosol MSA/non-seasalt sulphate molar ratios and estimated cumulative
contributions of biogenic DMS, CS2, and H2S to the total non-seasalt
sulphate concentration over each environment studied.
- Chemical species in rain water.
- Measured sreosol NH4+/non-seasalt sulphate molar ratios.
- Time: 1989
- Location: Sapelo Island, GA; Atchafalaya Basin, LA; Rockefeller, LA; Cocodrie, LA; Caillou Bay, LA.
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Diagenesis of belowground biomass of
Spartina alterniflora in salt-marsh sediments
- Author: Ronald Benner, Marilyn L. Fogel and E. Kent Sprague
- Available data:
- The ash-free dry weight loss from Spartina root and rhizome material during 18 months
of belowground decomposition in salt-marsh sediment.
- Lignin oxidation products from CuO oxidation of fresh and decaying Spartina root and rhizome material.
- Lignin parameters for fresh and decaying Spartina root and rhizome material.
- Regression analysis of the abundance ratios of cinnamyl and vanillyl phenols in fresh and decaying
Spartina tissues vs. time.
- Percentages of the initial lignin content in fresh Spartina remaining in decaying tissues.
- Elemental composition of fresh and decaying Spartina root and rhizome material.
- Percentages of the initial N content in fresh Spartina tissues remaining in decaying tissues.
- Stable C and N isotope compositions of whole tissues and major biochemical fractions from fresh and
decaying Spartina root and rhizome material.
- Regression analysis of the stable N isotope composition in fresh and decaying Spartina tissues vs.
the percentages of total N in tissues.
- Time: 1985
- Location: High-marsh area on Sapelo Island.
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Oligochaeta in Spartina stems: the microdistribution of Enchytraeidae
and Tubificidae in a salt marsh, Sapelo Island, USA
- Author: Brenda Healy and Keith Walters
- Available data:
- Density of live and dead S. alterniflora plants in May 1991 at Kenan Field.
- Comparision of the number of oligochaetes of marsh surface area calculated from extraction
and dissection data fro 0-10cm sections of live and dead stems.
- Numbers of oligochaetes extracted from 10cm sections of live and dead S. alterniflora stems
collected in creek side, low and high marsh site at Kenan Field.
- Mean numbers of oligochaetes dissected from 5cm sections, beginning 5cm below the sediment surface,
of live S. alterniflora stems collected in creek side, low and high marsh site at Kenan Field.
- Numbers of oligochaetes extracted from ca. 20g of leaf sheath collected from live S. alterniflora stems
in creek side, low and high marsh site at Kenan Field.
- Total numbers for oligochaetes species found on 20g of live or dead stems at 3 marsh sites for 3 stem
heights above the marsh sediment within Kenan Field.
- Total numbers for oligochaetes species dissected from live S. alterniflora stems in 3 stem
heights above and below the sediment within Kenan Field.
- Time: 1991
- Location: Kenan Field along the Duplin River on the western side of Sapelo Island.
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Growth and mortality in successive cohorts of fish
larvae within an estuarine nursery
- Author: R.T. Kneib
- Available data:
- Temporal patterns in temperatures and tidal flooding at the study site.
- Characteristics of the experimental cohorts of larvae.
- Summary of mean specific growth and mortality rates among cohorts of larvae reared in
field enclosures at both high and low intertidal elevations.
- Relationship between variation in tidal flooding duration at each intertidal elevation
and rates of growth and mortality in cohorts of larvae from the 0-prior cohort treatment.
- Survivorship curves for each of the 6 cohorts of larvae reared in field enclosures
under the 0-prior cohort treatment.
- Responses of larvae to use of the nursery by prior cohorts at high and low intertidal
elevations.
- Time: 1990
- Location: Salt marsh near the upper reaches of the Duplin River, Sapelo Island.
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Spatial Pattern, Spatial Scale, and Feeding in Fishes
- Author: Ronald T. Kneib
- Available data:
- Density of harpacticoid copepods in simulated aquatic microhabitats from intertidal
field cages before and after addition of Fundulus heteroclitus larvae.
- Effect of sampling at different flood-tide stages on densities of harpacticoid copepods
in simulated aquatic microhabitats from intertidal field cages in the presence and absence
of Fundulus heteroclitus larvae.
- Semi-monthly estimates of tanaid standing stocks at three stations along an intertidal
transect through a salt marsh adjacent to Kenan Field on Sapelo Island.
- Effects of creek drainage density on use of the intertidal marsh surface by fishes
- Time: 1992
- Location: Intertidal marsh transect on Sapelo Island.
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Direct Extraction and Purification of rRNA for Ecological Studies
- Author: Mary Ann Moran, Vigdis L. Torsvik, Terje Torsvik, and Robert E. Hodson
- Available data:
- Gel electrophoresis of RNA extracts.
- Yield of RNA from environmental samples.
- Dot blots of RNA extracted from salt marsh sediment cores and hybridized with a 16S rRNA
bacterial domain probe.
- Time: 1992
- Location: Spartina alterniflora marsh on Sapelo Island.
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Microbial utilization resulting in early diagenesis
of salt-marsh humic acids
- Author: Z. Filip and J.J. Alberts
- Available data:
- Productions of microbial biomass, elemental composition of biomass and the conversion
of carbon and nitrogen into biomass as influenced by salt-marsh humic acids under aerobic condition.
- Recovery of humic acids from aerobic cultures and percentage of their utilization by
microflora indigenous to salt-marsh mud.
- Distribution of carbon and carbon mineralization rate in aerobic cultures enriched
with salt-marsh-related humic acids.
- Production of microbial biomass, recovery of humic acid and total carbon spent in
semi-anaerobic cultures after 12-month incubation.
- Elemental composition and some atomic ratios of original and residual humic acids
from areobic cultures.
- Ultraviolet spectra of humic substances isolated from fresh S. alterniflora plants.
- Visible spectra of humic substances isolated from fresh S. alterniflora plants.
- Visible spectra of humic acids isolated from salt-marsh mud.
- Elemental composition and some atomic ratios of original and residual humic acids
from 12-month semi-anaerobic cultures.
- Observed infra-red bands in humic acids investigated and their proposed assignments.
- Time: NA
- Location: The extensive salt-marshes of Sapelo Island.