Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10386
Comparison of concentrations and profiles of polycyclic aromatic hydrocarbon metabolites in bile of fishes from offshore oil platforms and natural reefs along the California coast Comparison of concentrations and profiles of polycyclic aromatic hydrocarbon metabolites in bile of fishes from offshore oil platforms and natural reefs along the California coast
To determine the environmental consequences of decommissioning offshore oil platforms on local and regional fish populations, contaminant loads in reproducing adults were investigated at seven platform sites and adjacent, natural sites. Specimens of three species (Pacific sanddab, Citharichthys sordidus; kelp rockfish, Sebastes atrovirens; and kelp bass, Paralabrax clathratus) residing...
Authors
Robert W. Gale, Michael J. Tanner, Milton S. Love, Mary M. Nishimoto, Donna M. Schroeder
Evidence of autumn spawning in Suwannee River Gulf sturgeon, Acipenser oxyrinchus desotoi (Vladykov, 1955) Evidence of autumn spawning in Suwannee River Gulf sturgeon, Acipenser oxyrinchus desotoi (Vladykov, 1955)
Evidence of autumn spawning of Gulf sturgeon Acipenser oxyrinchus desotoi in the Suwannee River, Florida, was compiled from multiple investigations between 1986 and 2008. Gulf sturgeon are known from egg collections to spawn in the springtime months following immigration into rivers. Evidence of autumn spawning includes multiple captures of sturgeon in September through early November...
Authors
M.T. Randall, K. J. Sulak
Allowable levels of take for the trade in Nearctic songbirds Allowable levels of take for the trade in Nearctic songbirds
The take of Nearctic songbirds for the caged-bird trade is an important cultural and economic activity in Mexico, but its sustainability has been questioned. We relied on the theta-logistic population model to explore options for setting allowable levels of take for 11 species of passerines that were subject to legal take in Mexico in 2010. Because estimates of population size necessary...
Authors
Fred A. Johnson, Matthew A.H. Walters, G. Scott Boomer
In-ground disposal of human sewage can contaminate nearshore waters and reefs with bacteria and viruses In-ground disposal of human sewage can contaminate nearshore waters and reefs with bacteria and viruses
No abstract available.
Authors
Erin K. Lipp, Dale W. Griffin, J.C. Futch
Structural equation modeling and the analysis of long-term monitoring data Structural equation modeling and the analysis of long-term monitoring data
No abstract available.
Authors
James B. Grace, Jon E. Keeley, Darren J. Johnson, Kenneth A. Bollen
Stability of selenium sources reviewed Stability of selenium sources reviewed
No abstract available.
Authors
D. Eisenberg, N. Barashkov, T. W. May, Z. Eisenberg
Mississippi Sound Mississippi Sound
The Mississippi Sound is the primary body of water off the Mississippi Coast, extending from Lake Borgne, La. in the west to Mobile Bay, Ala. in the east and bordered by the barrier islands--Cat, Ship, Horn, Petit Bois, and Dauphin Islands--of Gulf Islands National Seashore to the south (Figure 1). It encompasses an estuary 293 km2 (113 mi2) large with a watershed of 259 km2 (100 mi2)...
Authors
Lawrence R. Handley, Kathryn A. Spear, Ali Leggett, Cindy A. Thatcher
Low genetic diversity and minimal population substructure in the endangered Florida manatee: implications for conservation Low genetic diversity and minimal population substructure in the endangered Florida manatee: implications for conservation
Species of management concern that have been affected by human activities typically are characterized by low genetic diversity, which can adversely affect their ability to adapt to environmental changes. We used 18 microsatellite markers to genotype 362 Florida manatees (Trichechus manatus latirostris), and investigated genetic diversity, population structure, and estimated genetically...
Authors
Kimberly Pause Tucker, Margaret E. Hunter, Robert K. Bonde, James D. Austin, Ann Marie Clark, Cathy A. Beck, Peter M. McGuire, Madan K. Oli
Over 100 years of environmental change recorded by foraminifers and sediments in a large Gulf of Mexico estuary, Mobile Bay, AL, USA Over 100 years of environmental change recorded by foraminifers and sediments in a large Gulf of Mexico estuary, Mobile Bay, AL, USA
The marine microfauna of Mobile Bay has been profoundly influenced by the development and expansion of the primary shipping channel over the last ∼100 years. Foraminifers and sediments from seven box cores with excess lead-210 chronology document that channel dredging and spoil disposal have altered circulation, reduced estuarine mixing, changed sedimentation patterns, and caused a...
Authors
Lisa E. Osterman, Christopher G. Smith
Monitoring oral temperature, heart rate, and respiration rate of West Indian manatees (Trichechus manatus) during capture and handling in the field Monitoring oral temperature, heart rate, and respiration rate of West Indian manatees (Trichechus manatus) during capture and handling in the field
West Indian manatees (Trichechus manatus) are captured, handled, and transported to facilitate conservation, research, and rehabilitation efforts. Monitoring manatee oral temperature (OT), heart rate (HR), and respiration rate (RR) during out-of-water handling can assist efforts to maintain animal well-being and improve medical response to evidence of declining health. To determine...
Authors
Arthur W. Wong, Robert K. Bonde, Jessica Siegal-Willott, M. Andrew Stamper, James Colee, James A. Powell, James P. Reid, Charles J. Deutsch, Kendal E. Harr
Navigational inlets are conduits for land-based sources of pollution Navigational inlets are conduits for land-based sources of pollution
No abstract available.
Authors
J.C. Flutch, Dale W. Griffin, Erin K. Lipp
Effects of groundwater pumping in the lower Apalachicola-Chattahoochee-Flint River basin Effects of groundwater pumping in the lower Apalachicola-Chattahoochee-Flint River basin
USGS developed a groundwater-flow model of the Upper Floridan aquifer in lower Apalachicola-Chattahoochee-Flint River basin in southwest Georgia and adjacent parts of Alabama and Florida to determine the effect of agricultural groundwater pumping on aquifer/stream flow within the basin. Aquifer/stream flow is the sum of groundwater outflow to and inflow from streams, and is an important
Authors
L. Elliott Jones