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Theresa Thom

Aquatic Invasive Species Coordinator
Email: theresa_thom@fws.gov
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This dataset describes the quantity and morphology of microplastics in water, surficial sediment, sediment core, fish, and shellfish samples from Lake Mead National Recreation Area (Nevada/Arizona). Water and surficial sediment samples were collected once at 9 locations. A sediment core (33 cm long) was extracted from Las Vegas Bay to assess changes in microplastic deposition over time. Striped bass (Morone saxatilis), common carp (Cyprinus carpio), quagga mussels (Dreissena bugensis), and Asian clams (Corbicula fluminea) were sampled at a subset of locations to assess biological uptake of microplastics. Sampling and analysis methods are described in the Processing Steps section of the metadata. All samples were...
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Anticipating Climate-Driven Spread and Impact of Multiple Interacting Invasive Species in the Columbia River Basin
A persistent management question is whether current climate adaptation planning will remain robust when facing a growing number of invasive species. The concern is that current management strategies that focus exclusively on single invasive species and overlook climate-driven biological interactions, may lead to poor decisions. By delivering actionable science, this project directly informs specific planning, management and decision needs of tribal and governmental partners working in the Columbia River Basin. First, we assess the information needs for, and barriers to, effective aquatic invasive species management in the face of climate change in the Columbia River Basin. This helps synthesize knowledge and build...
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