Megan K. Stolen

Alzheimer’s disease signatures in the brain transcriptome of estuarine dolphins

Wendy Noke Durden, Megan K. Stolen, Susanna P. Garamszegi, Sandra Anne Banack et autres

Climate warming is one factor increasing the severity of harmful algal blooms (HABs). Innovative exposure models are needed to understand how HABs affect brain health. Here, we examined HAB exposure on the brain transcriptome of dolphins found stranded in Florida's Indian River …

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An unusual mortality event for bottlenose dolphins links to altered diets resulting from ecological changes

Megan K. Stolen, Wendy Noke Durden, Teresa Jablonski, Graham A. J. Worthy et autres

Bottlenose dolphins (Tursiops truncatus) often have served as sentinel species for ecological changes in estuarine and marine systems. In 2013, the population of bottlenose dolphins in the Indian River Lagoon exemplified this role because an unusual mortality event involving malnourishment followed ecological …

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Liver Lesions in Estuarine Dolphins in the Indian River Lagoon, Florida: Does Microcystin Play a Role?

Ami Krasner, Wendy Noke Durden, Megan K. Stolen, Teresa Jablonski et autres

Microcystin (MC), a hepatotoxin produced by cyanobacteria, was introduced into the Indian River Lagoon (IRL), Florida, in 2005 through freshwater outflows. Since then, MC has been detected in humans, domestic animals, and wildlife in the lagoon. Potential public health effects associated with …

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Assessing the Diet of the Elusive North American River Otter ( Lontra canadensis ) in Florida Using Faecal DNA Metabarcoding

Judith Bakker, Maurits P. M. van Zinnicq Bergmann, Megan K. Stolen, Jérémy J. Kiszka

ABSTRACT North American river otters (Lontra canadensis) are semiaquatic mammals distributed throughout the North American continent. They are generalist carnivores with a high potential to affect community structure and dynamics. However, habitat degradation and ecosystem changes have the potential to impact their …

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Contaminant Exposure and Liver and Kidney Lesions in North American River Otters in the Indian River Lagoon, Florida

Ami Krasner, Megan K. Stolen, David S. Rotstein, Spencer E. Fire

The harmful algal bloom (HAB) liver toxin microcystin (MC) and trace element biomagnification were previously detected in organisms in the Indian River Lagoon (IRL), Florida. Since there are no routine screening programs for these contaminants, liver tissue from North American river otters …

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Veterinary Aspects of Forensic Medicine: Wild Animals – Wildlife Forensic Pathology

Tabitha C. Viner, Megan K. Stolen

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Trace element bioaccumulation, tissue distribution, and elimination in odontocetes stranded in Florida and Georgia, USA over a 15-year period (2007–2021)

Annie Page‐Karjian, Clara Hay, Wendy Marks, Baylin J. Bennett et autres

Odontocetes obtain nutrients including essential elements through their diet and are exposed to heavy metal contaminants via ingestion of contaminated prey. We evaluated the prevalence, concentration, and tissue distribution of essential and non-essential trace elements, including heavy metal toxicants, in tissue (blubber, …

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MORBIDITY AND MORTALITY PATTERNS OF INDIAN RIVER LAGOON COMMON BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS TRUNCATUS) 2002–2020

Wendy Noke Durden, Teresa Jablonski, Megan K. Stolen, Connie Silbernagel et autres

Mortality patterns in cetaceans are critical to understanding population health. Common bottlenose dolphins (Tursiops truncatus truncatus) inhabiting the Indian River Lagoon (IRL), Florida have been subjected to four unusual mortality events (UMEs), highlighting the need to evaluate morbidity and mortality patterns. Complete …

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Vulnerability to climate change of United States marine mammal stocks in the western North Atlantic, Gulf of Mexico, and Caribbean

Matthew D. Lettrich, Michael J. Asaro, Diane L. Borggaard, Dorothy M. Dick et autres

Climate change and climate variability are affecting marine mammal species and these impacts are projected to continue in the coming decades. Vulnerability assessments provide a framework for evaluating climate impacts over a broad range of species using currently available information. We conducted …

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How to estimate age of old bottlenose dolphins (Tursiops truncatus); by tooth or pectoral flipper?

Ashley Barratclough, Wayne E. McFee, Megan K. Stolen, Aleta A. Hohn et autres

Multiple techniques have been used for estimating age in bottlenose dolphins (Tursiops truncatus). The longest established technique is via counts of growth later groups (GLGs) in the longitudinal section of an extracted mandibular tooth. Previous studies to validate GLGs have primarily used …

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Forensic Science in Marine Mammalogy: Applications and Limitations

Megan K. Stolen

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Comparison of during-bloom and inter-bloom brevetoxin and saxitoxin concentrations in Indian River Lagoon bottlenose dolphins, 2002–2011

Spencer E. Fire, Jeremy Alan Browning, Wendy Noke Durden, Megan K. Stolen

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