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Displaying 76 - 100 of 470

Chronic Debilitation in Stranded Loggerhead Sea Turtles (Caretta caretta) in the Southeastern United States: Morphometrics and Clinicopathological Findings

July 10, 2018
Author(s)
Nicole Stacy, Jennifer Lynch, Michael D. Arendt, Larisa Avens, Joanne Braun McNeill, Carolyn Cray, Russell D. Day, Craig A. Harms, A. M. Lee, Margie Peden-Adams, Kelly Thorvalson, Al L. Segars, Terry Norton
Chronically debilitated loggerhead sea turtles (Caretta caretta) (DT) are characterized by emaciation, lethargy, and heavy barnacle coverage. We examined and sampled 43 DTs from North Carolina to Florida for a broad suite of health variables using

Characterization of Circulating Steroid Hormone Profiles in the Bottlenose Dolphin (Tursiops truncatus) by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

July 1, 2018
Author(s)
Thomas M. Galligan, Lori Schwacke, Dorian S. Houser, Randall Wells, Teresa Rowles, Ashley Russell
Circulating steroid hormone concentrations are typically measured by immunoassays, which have imperfect specificity and are limited to the measurement of a single hormone per assay. Here we demonstrate that reverse phase solid phase extraction (SPE)

Validation of ATR FT-IR to identify polymers of plastic marine debris, including those ingested by marine organisms

January 3, 2018
Author(s)
Melissa R. Jung, F. D. Horgen, Sara Orski, Viviana Rodriguez Cardenas, Kathryn Beers, George H. Balazs, T. T. Jones, Thierry M. Work, Kayla C. Brignac, Sarah-Jeanne Royer, K. D. Hyrenbach, Brenda A. Jensen, Jennifer Lynch
Polymer identification of plastic marine debris can help identify its sources, degradation, and fate. We optimized and validated a fast, simple, and accessible technique, attenuated total reflectance Fourier transform infrared spectroscopy (ATR FT-IR), to

Halogenated natural products

December 29, 2017
Author(s)
Terry Bidleman, John Kucklick, Henrik Kylin, Robert Letcher, Liisa Jantunen, Fiona Wong
This chapter summarizes the occurrence and fate on HNPs in the arctic physical environment and accumulation processes and presence in arctic biota. Except for halocarbons, there have been few investigations of HNPs in polar environments. Discussions of HNP

Analysis of PFAAs in American alligators Part 1: Concentrations in alligators harvested for consumption during South Carolina public hunts.

November 29, 2017
Author(s)
Jessica Tipton, Louis J. Guillette, Benjamin B. Parrott, Thomas R. Rainwater, Jessica L. Reiner
Environmental contamination resulting from the production or release of harmful chemicals can lead to negative consequences for wildlife and human health. Perfluorinated alkyl acids (PFAAs) were historically produced as protective coatings for many

Analysis of PFAAs in American alligators Part 2: Potential dietary exposure of South Carolina hunters from recreationally harvested alligator meat

November 29, 2017
Author(s)
Jessica Tipton, Louis J. Guillette, Susan Lovelace, Benjamin B. Parrott, Thomas R. Rainwater, Jessica L. Reiner
Exposure to perfluorinated alkyl acids (PFAAs) has been linked to many harmful health effects including reproductive disorders, developmental delays, and altered liver and kidney function. Most human exposure to environmental contaminants, including PFAAs

Trichothiazole A, a dichlorinated polyketide featuring an embedded thiazole isolated from Trichodesmium thiebautii blooms

September 18, 2017
Author(s)
Tracey B. Schock, Peter D. Moeller, Rick Belisle, Christopher W. Via, Tracy A. Villareal, Kevin Beauchesne, Matthew J. Bertin, Paul Zimba
Mass spectrometry-guided isolation of the lipophilic extract of Trichodesmium thiebautii bloom material led to the isolation and structure characterization of a new thiazole-containing di-chlorinated polyketide (1). The structure of 1 was deduced using 1D

Metabolomics Analysis of Effects of Commercial Soy-based Protein Products in Red Drum (Sciaenops ocellatus)

June 14, 2017
Author(s)
Fabio Casu, Aaron Watson, Justin Yost, John Leffler, Gibson Gaylord, Frederic Barrows, Paul A. Sandifer, Dan Bearden, Michael R. Denson
In this study we investigated the metabolic effects of four different commercial soy-based protein products on red drum (Sciaenops ocellatus) using NMR-based metabolomics along with unsupervised principal component analysis (PCA) to evaluate metabolic

Rapid and reliable steroid hormone profiling in Tursiops truncatus blubber using liquid chromatography tandem mass spectrometry (LC-MS/MS)

June 1, 2017
Author(s)
Ashley S. Boggs-Russell, Tracey B. Schock, Thomas M. Galligan, Wayne E. McFee, Jeanine S. Morey, Lori Schwacke, John R. Kucklick
Monitoring of marine mammal steroid hormone status using matrices alternative to blood is desirable due to the ability to remotely collect samples which minimizes stress. However, measurement techniques in alternative matrices such as blubber described to

Perfluorinated Alkyl Acids in the Plasma of American Alligators (Alligator mississippiensis) from Florida and South Carolina

April 4, 2017
Author(s)
Jessica L. Reiner, John Bowden, Ian Christie, Matthew P. Guillette, Russell H. Lowers, Arnold Brunell, Phillip M. Wilkinson, Jacqueline T. Bangma, Thomas R. Rainwater, Louis J. Guillette Jr., Martin Jones
This study was the first to quantitate fourteen perfluoroalkyl acids (PFAAs) in 125 adult American alligators at twelve sites across the southeastern US. Of those fourteen PFAAs, nine were commonly detected. Males as a group (across all sites) showed a

Progress in Development of Prepared Foods for Red Drum, Sciaenops ocellatus, That Minimize Inclusion of Fish Meal and Reduce Environmental Impacts of Effluent Discharges

March 30, 2017
Author(s)
Michael R. Denson, Paul A. Sandifer, John Leffler, Justin Yost, Dan Bearden, Thomas R. Zeigler
We conducted a 16-week feeding trial with juvenile red drum (Sciaenops ocellatus). Four diets were randomly assigned to six replicate tanks per treatment. A Basal Diet (Diet 1) contained 19.60% fishmeal and 21.42% poultry meals as primary protein sources
Displaying 76 - 100 of 470