Tyler Wagner, PhD
Assistant Unit Leader - Pennsylvania Cooperative Fish and Wildlife Research Unit.
Dr. Wagner received graduate degrees from the University of Idaho (MS) and Michigan State University (PhD) and was a post-doctoral researcher at the Quantitative Fishery Center at Michigan State University before joining the Pennsylvania Unit in 2008. He conducts research that addresses key challenges facing aquatic and fisheries ecology and landscape limnology in the face of global change. He conducts both applied and basic science in collaboration with diverse research teams on problems that range from local to continental in scale. Specifically, his research fills important knowledge gaps that exist in our understanding of lake and stream ecosystem processes that include: (a) fine-scale ecological properties and processes of fishes, such as habitat use, movement dynamics, and responses to legacy and emerging contaminants, (b) macro-ecological studies of lake and stream ecosystem state, including the effects of climate and land use change on lake water quality and fish growth and distributions, and (c) conducting synthetic work to study the interactions that exits between these scales. Dr. Wagner teaches courses on the ecological application of Bayesian hierarchical models.
Science and Products
Wastewater reuse may be detrimental to smallmouth bass abundance in the Shenandoah River Watershed
Issue: Municipal and industrial wastewater effluent is an important source of water for streams and rivers, especially during periods of low flow. The reuse of wastewater effluent may become even more important if climate change exacerbates low streamflow and drought conditions. However, wastewater effluent often contains chemicals that, when chronically present, can affect the health of aquatic...
The statistical power to detect regional temporal trends in riverine contaminants in the Chesapeake Bay Watershed
Issue: Chemical contamination of riverine ecosystems is a global concern, with potentially negative effects for human and ecological health. Land management activities (e.g., Best Management Practices; BMPs) are an important tool that can be used to reduce point and non-point sources of pollution. The Chesapeake Bay Program (CBP) has goals for (1) reducing toxic contaminants and (2) reducing...
Quantifying the Impacts of Climate Change on Fish Growth and Production to Enable Sustainable Management of Diverse Inland Fisheries
Fisheries managers in Midwestern lakes and reservoirs are tasked with balancing multiple management objectives to help maintain healthy fish populations across a landscape of diverse lakes. As part of this, managers monitor fish growth and survival. Growth rates in particular are indicators of population health, and directly influence the effectiveness of regulations designed to protect spawning f
Fish Habitat Restoration to Promote Adaptation: Resilience of Sport Fish in Lakes of the Upper Midwest
Many Midwestern lakes are experiencing warming water temperatures as a result of climate change. In general, this change is causing coldwater fish species such as cisco and coolwater species such as walleye to decline. Meanwhile, warmer water species such as largemouth and smallmouth bass are increasing as temperatures warm. However, some fish populations are more vulnerable to these changes than
FishTail: A Tool to Inform Conservation of Stream Fish Habitats in the Northeast
Human impacts occurring throughout the DOI Northeast Climate Science Center, including urbanization, agriculture, and dams, have multiple effects on streams in the region which support economically valuable stream fishes. Changes in climate are expected to lead to additional impacts in stream habitats and fish assemblages in multiple ways, including changing stream water temperatures. To manage st
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Wastewater reuse may be detrimental to smallmouth bass abundance in the Shenandoah River Watershed
Issue: Municipal and industrial wastewater effluent is an important source of water for streams and rivers, especially during periods of low flow. The reuse of wastewater effluent may become even more important if climate change exacerbates low streamflow and drought conditions. However, wastewater effluent often contains chemicals that, when chronically present, can affect the health of aquatic...The statistical power to detect regional temporal trends in riverine contaminants in the Chesapeake Bay Watershed
Issue: Chemical contamination of riverine ecosystems is a global concern, with potentially negative effects for human and ecological health. Land management activities (e.g., Best Management Practices; BMPs) are an important tool that can be used to reduce point and non-point sources of pollution. The Chesapeake Bay Program (CBP) has goals for (1) reducing toxic contaminants and (2) reducing...Quantifying the Impacts of Climate Change on Fish Growth and Production to Enable Sustainable Management of Diverse Inland Fisheries
Fisheries managers in Midwestern lakes and reservoirs are tasked with balancing multiple management objectives to help maintain healthy fish populations across a landscape of diverse lakes. As part of this, managers monitor fish growth and survival. Growth rates in particular are indicators of population health, and directly influence the effectiveness of regulations designed to protect spawning fFish Habitat Restoration to Promote Adaptation: Resilience of Sport Fish in Lakes of the Upper Midwest
Many Midwestern lakes are experiencing warming water temperatures as a result of climate change. In general, this change is causing coldwater fish species such as cisco and coolwater species such as walleye to decline. Meanwhile, warmer water species such as largemouth and smallmouth bass are increasing as temperatures warm. However, some fish populations are more vulnerable to these changes thanFishTail: A Tool to Inform Conservation of Stream Fish Habitats in the Northeast
Human impacts occurring throughout the DOI Northeast Climate Science Center, including urbanization, agriculture, and dams, have multiple effects on streams in the region which support economically valuable stream fishes. Changes in climate are expected to lead to additional impacts in stream habitats and fish assemblages in multiple ways, including changing stream water temperatures. To manage st - Data
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