Holly Embke is a Research Fish Biologist with the U.S. Geological Survey’s Midwest Climate Adaptation Science Center. Holly’s research aims to understand conditions to support self-sustaining inland fish communities in a changing climate across a range of scales. Her work is collaborative and seeks to inform the conservation of inland fishes by working directly with partners to address areas of ma
Holly’s research consists of projects across the basic to applied science spectrum with a focus on understanding the impact of climate change on inland fisheries. She works across a range of scales, including local (e.g., walleye in Wisconsin lakes), regional (e.g., recreational fisheries across the U.S.), and global (e.g., valuing inland fisheries globally).
Science and Products
Climate Adaptation for Data-Limited Inland Fisheries
Inland fisheries have tremendous cultural, economic, and subsistence value. However, climate change brings new stresses to land-locked fisheries that raise novel challenges for resource managers. One fundamental challenge in inland fisheries is how to best assess and manage data-limited fisheries when resources are finite and uncertainty is pervasive. To address this challenge, we will use quantit
Informing Mekong River Basin Resiliency and Climate Adaptation
CASC experts are often requested to provide technical assistance to other Federal agencies, including the U.S. Department of State, as well as national and international partners. The U.S. Consulate in Thailand solicited leadership and guidance from the CASCs to help develop community-supported recommendations for increasing resiliency for fishing communities in the Mekong River Basin. Thail
Indigenous Perspectives on Lake Sturgeon and the Potential Impact of Climate Change
Lake sturgeon are a fish of strong subsistence, cultural, and spiritual importance for many Tribal nations. But lake sturgeon are especially vulnerable to climate change given their unique life history and historical mass declines. Therefore, there is a great need to incorporate Tribal perspectives on lake sturgeon shifts and information needs into adaptation planning to conserve these fish in a c
CASC Fish Research
The CASC Fish Research Program is a dynamic group of federal researchers and early-career scientists working together to explore the impacts of climate and other stressors on fish and aquatic systems to inform conservation, climate adaptation, and sustainable use.
Walleye Fisheries: Bright Spots in a Changing Climate
Habitat loss, pollution, species introductions, and overfishing have been impacting inland fisheries for decades. Climate change threatens to compound the factors that lead to fisheries decline. Walleye, an ecologically, economically and culturally important cool-water sportfish, have been declining in the Upper Great Lakes Region since the early 2000s. Yet while many inland walleye populations ha
One from Many: Combining State Creel Data to Estimate Regional Harvest
Recreational angling in the U.S. represents a large group of people that catch and harvest fish for a variety of reasons, including for relaxation, adventure, social motivations, and consumption. Collectively, recreational anglers can exert pressures on both economies and fishery resources. Fish removals by anglers represent an important source of mortality data when trying to understand fish pop
Estimating Global Inland Recreational Consumption to Adapt to Global Change
Inland recreational fishing, defined as primarily leisure-driven fishing in freshwaters, is a popular past-time which can provide substantial contributions to human consumption which are often overlooked at global scales. Here, we aim to establish a baseline of national inland recreational consumption estimates with species specificity to identify the nutritional composition and total use value of
The U.S. Inland Creel and Angler Survey Catalog (CreelCat): A Database and Interactive Tool for Inland Fisheries Management and Research
Inland recreational fishing, defined as primarily leisure-driven fishing in freshwaters, is a popular past-time in the USA. State natural resource agencies endeavor to provide high-quality and sustainable fishing opportunities for anglers. Managers often use creel and other angler-survey data to inform state- and waterbody-level management efforts. Despite the broad implementation of angler survey
Safe Operating Space for Walleye: Understanding the Conditions Needed to Sustain Recreational Fisheries in a Changing World
Walleye, a socially and economically important sportfish across much of North America, are experiencing population declines in many lakes throughout their range. Studies suggest that multiple factors – potentially linked to climate change – are contributing to the decline of walleye, including changes in lake temperatures, loss of habitat, increasing water clarity (perhaps due to drought), and int...
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Climate Adaptation for Data-Limited Inland Fisheries
Inland fisheries have tremendous cultural, economic, and subsistence value. However, climate change brings new stresses to land-locked fisheries that raise novel challenges for resource managers. One fundamental challenge in inland fisheries is how to best assess and manage data-limited fisheries when resources are finite and uncertainty is pervasive. To address this challenge, we will use quantitInforming Mekong River Basin Resiliency and Climate Adaptation
CASC experts are often requested to provide technical assistance to other Federal agencies, including the U.S. Department of State, as well as national and international partners. The U.S. Consulate in Thailand solicited leadership and guidance from the CASCs to help develop community-supported recommendations for increasing resiliency for fishing communities in the Mekong River Basin. ThailIndigenous Perspectives on Lake Sturgeon and the Potential Impact of Climate Change
Lake sturgeon are a fish of strong subsistence, cultural, and spiritual importance for many Tribal nations. But lake sturgeon are especially vulnerable to climate change given their unique life history and historical mass declines. Therefore, there is a great need to incorporate Tribal perspectives on lake sturgeon shifts and information needs into adaptation planning to conserve these fish in a cCASC Fish Research
The CASC Fish Research Program is a dynamic group of federal researchers and early-career scientists working together to explore the impacts of climate and other stressors on fish and aquatic systems to inform conservation, climate adaptation, and sustainable use.Walleye Fisheries: Bright Spots in a Changing Climate
Habitat loss, pollution, species introductions, and overfishing have been impacting inland fisheries for decades. Climate change threatens to compound the factors that lead to fisheries decline. Walleye, an ecologically, economically and culturally important cool-water sportfish, have been declining in the Upper Great Lakes Region since the early 2000s. Yet while many inland walleye populations haOne from Many: Combining State Creel Data to Estimate Regional Harvest
Recreational angling in the U.S. represents a large group of people that catch and harvest fish for a variety of reasons, including for relaxation, adventure, social motivations, and consumption. Collectively, recreational anglers can exert pressures on both economies and fishery resources. Fish removals by anglers represent an important source of mortality data when trying to understand fish popEstimating Global Inland Recreational Consumption to Adapt to Global Change
Inland recreational fishing, defined as primarily leisure-driven fishing in freshwaters, is a popular past-time which can provide substantial contributions to human consumption which are often overlooked at global scales. Here, we aim to establish a baseline of national inland recreational consumption estimates with species specificity to identify the nutritional composition and total use value ofThe U.S. Inland Creel and Angler Survey Catalog (CreelCat): A Database and Interactive Tool for Inland Fisheries Management and Research
Inland recreational fishing, defined as primarily leisure-driven fishing in freshwaters, is a popular past-time in the USA. State natural resource agencies endeavor to provide high-quality and sustainable fishing opportunities for anglers. Managers often use creel and other angler-survey data to inform state- and waterbody-level management efforts. Despite the broad implementation of angler surveySafe Operating Space for Walleye: Understanding the Conditions Needed to Sustain Recreational Fisheries in a Changing World
Walleye, a socially and economically important sportfish across much of North America, are experiencing population declines in many lakes throughout their range. Studies suggest that multiple factors – potentially linked to climate change – are contributing to the decline of walleye, including changes in lake temperatures, loss of habitat, increasing water clarity (perhaps due to drought), and int... - Data
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