Publications
Explore scientific publications from the USGS St. Petersburg Coastal and Marine Science Center.
Filter Total Items: 912
Observations on the use of membrane filtration and liquid impingement to collect airborne microorganisms in various atmospheric environments
The influence of sample-collection-time on the recovery of culturable airborne microorganisms using a low-flow-rate membrane-filtration unit and a high-flow-rate liquid impinger were investigated. Differences in recoveries were investigated in four different atmospheric environments, one mid-oceanic at an altitude of ~10.0 m, one on a mountain top at an altitude of ~3,000.0 m, one at ~1.0 m altitu
Authors
Dale W. Griffin, C. Gonzalez, N. Teigell, Terry Petrosky, D.E. Northup, M. Lyles
Productivity of a coral reef using boundary layer and enclosure methods
The metabolism of Cayo Enrique Reef, Puerto Rico, was studied using in situ methods during March 2009. Benthic O2 fluxes were used to calculate net community production using both the boundary layer gradient and enclosure techniques. The boundary layer O2 gradient and the drag coefficients were used to calculate productivity ranging from −12.3 to 13.7 mmol O2 m−2 h−1. Productivity measurements fro
Authors
W. R. McGillis, C. Langdon, B. Loose, Kimberly K. Yates, J. Corredor
A coral Sr/Ca calibration and replication study of two massive corals from the Gulf of Mexico
This study examined the variations in the ratio of strontium-to-calcium (Sr/Ca) for two Atlantic corals (Montastraea faveolata and Siderastrea siderea) from the Dry Tortugas National Park (centered on 24.7°N, 82.8°W) in the Gulf of Mexico. Cores from coral colonies in close proximity (10s of meters) and with the same environmental conditions (i.e., depth and water chemistry) were micro-sampled wit
Authors
Kristine L. DeLong, Jennifer A. Flannery, Christopher R. Maupin, Richard Z. Poore, Terrence M. Quinn
The high life: Transport of microbes in the atmosphere
Microbes (bacteria, fungi, algae, and viruses) are the most successful types of life on Earth because of their ability to adapt to new environments, reproduce quickly, and disperse globally. Dispersal occurs through a number of vectors, such as migrating animals or the hydrological cycle, but transport by wind may be the most common way microbes spread. General awareness of airborne microbes preda
Authors
D.J. Smith, Dale W. Griffin, D.A. Jaffe
Natural radium and radon tracers to quantify water exchange and movement in reservoirs
Radon and radium isotopes are routinely used to quantify exchange rates between different hydrologic reservoirs. Since their recognition as oceanic tracers in the 1960s, both radon and radium have been used to examine processes such as air-sea exchange, deep oceanic mixing, benthic inputs, and many others. Recently, the application of radon-222 and the radium-quartet (223,224,226,228Ra) as coastal
Authors
Christopher G. Smith
Management case study: Tampa Bay, Florida
Tampa Bay, Florida, USA, is a shallow, subtropical estuary that experienced severe cultural eutrophication between the 1940s and 1980s, a period when the human population of its watershed quadrupled. In response, citizen action led to the formation of a public- and private-sector partnership (the Tampa Bay Estuary Program), which adopted a number of management objectives to support the restoration
Authors
Gerold Morrison, Holly Greening, Kimberly K. Yates
Globorotalia truncatulinoides (dextral) Mg/Ca as a proxy for Gulf of Mexico winter mixed-layer temperature: evidence from a sediment trap in the northern Gulf of Mexico
Three years of weekly- to biweekly-resolved sediment-trap data show that almost 90% of the total flux of tests of the planktic foraminifer Globorotalia truncatulinoides to sediments in the northern Gulf of Mexico occurs in January and February. Comparison of δ18O from tests of non-encrusted Gl. truncatulinoides in sediment-trap samples with calculated calcification depths indicates that the non-en
Authors
Jessica W. Spear, Richard Z. Poore, Terrence M. Quinn
Microbial consortia of gorgonian corals from the Aleutian islands
Gorgonians make up the majority of corals in the Aleutian archipelago and provide critical fish habitat in areas of economically important fisheries. The microbial ecology of the deep-sea gorgonian corals Paragorgea arborea, Plumarella superba, and Cryogorgia koolsae was examined with culture-based and 16S rRNA gene-based techniques. Six coral colonies (two per species) were collected. Samples fro
Authors
Michael A. Gray, Robert P. Stone, Molly R. McLaughlin, Christina A. Kellogg
Geological effects and implications of the 2010 tsunami along the central coast of Chile
Geological effects of the 2010 Chilean tsunami were quantified at five near-field sites along a 200 km segment of coast located between the two zones of predominant fault slip. Field measurements, including topography, flow depths, flow directions, scour depths, and deposit thicknesses, provide insights into the processes and morphological changes associated with tsunami inundation and return flow
Authors
R.A. Morton, G. Gelfenbaum, M.L. Buckley, B. M. Richmond
Geological impacts and implications of the 2010 tsunami along the central coast of Chile
Geological effects of the 2010 Chilean tsunami were quantified at five near-field sites along a 200 km segment of coast located between the two zones of predominant fault slip. Field measurements, including topography, flow depths, flow directions, scour depths, and deposit thicknesses, provide insights into the processes and morphological changes associated with tsunami inundation and return flow
Authors
Robert A. Morton, Guy Gelfenbaum, Mark L. Buckley, Bruce M. Richmond