Holly Embke

Holly Embke
United States Geological Survey | USGS · Midwest Climate Adaptation Science Center

Doctor of Philosophy

About

19
Publications
2,794
Reads
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228
Citations
Education
May 2017 - May 2022
University of Wisconsin–Madison
Field of study
  • Freshwater and Marine Sciences
June 2015 - May 2017
University of Toledo
Field of study
  • Biology
September 2011 - December 2014
McGill University
Field of study
  • Biology

Publications

Publications (19)
Article
Full-text available
Grass carp (Ctenopharyngodon idella), an invasive species of Asian carp, has been stocked for many decades in the United States for vegetation control. Adult individuals have been found in all of the Great Lakes except Lake Superior, but no self-sustaining populations have yet been identified in Great Lakes tributaries. In 2012, a commercial fisher...
Article
Recreational fisheries are valued at $190B globally and constitute the predominant way in which people use wild fish stocks in developed countries, with inland systems contributing the main fraction of recreational fisheries. Although inland recreational fisheries are thought to be highly resilient and self-regulating, the rapid pace of environment...
Article
Recreational fisheries have high economic worth, valued at $190B globally. An important, but underappreciated, secondary value of recreational catch is its role as a source of food. This contribution is poorly understood due to difficulty in estimating recreational harvest at spatial scales beyond a single system, as traditionally estimated from in...
Article
Full-text available
Lake ecosystems are shifting due to many drivers including climate change and landscape-scale habitat disturbance, diminishing their potential to support some fisheries. Walleye Sander vitreus (Mitchill) populations, which support recreational and tribal fisheries across North America, have declined in some lakes. Climate change, harvest, invasive...
Article
Full-text available
Inland recreational fisheries, found in lakes, rivers, and other landlocked waters, are important to livelihoods, nutrition, leisure, and other societal ecosystem services worldwide. Although recreationally-caught fish are frequently harvested and consumed by fishers, their contribution to food and nutrition has not been adequately quantified due t...
Conference Paper
Anticipating and managing climate-induced ecosystem transformations in large rivers is particularly challenging given their inherently complex socio-ecological dynamics that often cross jurisdictional boundaries. We examine how the Resist-Accept-Direct (RAD) framework can facilitate informed decision making and a more cohesive and proactive approac...
Article
Inland recreational fisheries provide numerous socio-economic benefits to fishers, families and communities. Recreationally harvested fish are also frequently consumed and may provide affordable and sustainable but undervalued contributions to human nutrition. Quantifying the degree to which recreationally harvested fish contribute to food security...
Article
Full-text available
Decision-makers in inland fisheries management must balance ecologically and socially palatable objectives for ecosystem services within financial or physical constraints. Climate change has transformed the potential range of ecosystem services available. The Resist-Accept-Direct (RAD) framework offers a foundation for responding to climate-induced...
Conference Paper
Threats to inland recreational fisheries include warmer water, habitat loss, and expanding populations of predators. These threats are not directly confronted by the usual tools of fishery management. In view of this mismatch, the safe operating space or SOS approach aims to “manage what you can to protect what you want”. In some cases, reduced har...
Article
Inland recreational fishing, defined as primarily leisure‐driven fishing in freshwaters, is a popular pastime 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. D...
Article
There is concern of economic and environmental damage occuring if any of the four major aquacultured carp species of China, black carp Mylopharyngodon piceus, bighead carp Hypophthalmichthys nobilis, silver carp H. molitrix, or grass carp Ctenopharyngodon idella, were to establish in the Laurentian Great Lakes. All four are reproducing in the Missi...
Article
Full-text available
Estimating the abundance of organisms is fundamental to the study and management of ecological systems. However, accurately and precisely estimating organism abundance is challenging, especially in aquatic systems where organisms are hidden underwater. Estimating the abundance of fish is critical for the management of fisheries which relies on accu...
Chapter
Aim—The goal of this chapter is to provide a broad overview of the diverse range of approaches used to study lake food webs. We highlight seminal findings in the development of the field and also highlight current areas of research interest. A central theme is that considering lake food webs contributes to a better understanding of the functioning...
Article
Many Bluegill Lepomis macrochirus populations are dominated by fish ≤ 125 mm total length (TL) that may be underrepresented when using standard sampling gears. To identify efficient sampling methods for these populations, we compared catch per unit effort (CPUE) and TL-frequency distributions of Bluegill captured in cloverleaf traps, boat electrofi...
Article
Full-text available
Hydrological regime alteration in reservoirs is a major anthropogenic disturbance in aquatic ecosystems. We examined winter drawdown effects on macroinvertebrate abundance and community composition in reservoirs while accounting for localized physical variables that might explain additional variability. We hypothesized that drawdown would affect th...
Article
Identifying spawning and hatching locations is vital to controlling invasive fish and conserving imperiled fish, which can be difficult for pelagically spawning species with semi-buoyant eggs. In freshwater systems, this reproductive strategy is common among cyprinid species, such as Chinese carp species currently threatening the Great Lakes. Follo...
Conference Paper
Walleye Sander vitreus are one of the most economically important fish species within the state of Wisconsin where they support both recreational and tribal fisheries. Over the last decade or more, recruitment of Walleyes has declined in many northern Wisconsin lakes. Evidence suggests that populations of Largemouth Bass Micropterus salmoides have...

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Projects

Projects (2)
Project
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 this recreational consumption.
Project
Origins and movements of GC in the GL; spawning population in Sandusky River; water chemistry in support of first objective