A5076070687- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Hydrology and Sediment Transport Processes
- Species Distribution and Climate Change
- Aquatic Invertebrate Ecology and Behavior
- Hydrology and Watershed Management Studies
- Toxic Organic Pollutants Impact
- Mercury impact and mitigation studies
- Marine animal studies overview
- Marine and fisheries research
- Evolution and Genetic Dynamics
- Heavy metals in environment
- Animal Ecology and Behavior Studies
- Land Use and Ecosystem Services
- Insurance, Mortality, Demography, Risk Management
- Parasite Biology and Host Interactions
- Research Data Management Practices
- Coastal wetland ecosystem dynamics
- Biofuel production and bioconversion
- Crime, Illicit Activities, and Governance
- Plant Ecology and Soil Science
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Ecology Research
- demographic modeling and climate adaptation
- Bioenergy crop production and management
Wisconsin Department of Natural Resources
2018-2024
McGill University
2017
University of Wisconsin–Madison
2013-2016
Abstract Rapid and ongoing change creates novelty in ecosystems everywhere, both when comparing contemporary systems to their historical baselines, predicted future the present. However, level of varies greatly among places. Here we propose a formal quantifiable definition abiotic biotic ecosystems, map globally, discuss implications for science ecology biodiversity conservation. We define as degree dissimilarity system, measured one or more dimensions relative reference baseline, usually...
Controlling invasive species can restore ecosystems while also quantifying interaction strengths. We experimentally removed rusty crayfish (Orconectes rusticus) from a Wisconsin lake. Rusty abundance declined by 99% in 8 years and did not significantly increase 4 postharvest, with no compensatory recruitment response observed. Native virilis) sunfish (Lepomis spp.) abundances increased two orders of magnitude as declined, macrophyte cover 2–4 m waters. expected benthic macroinvertebrate...
Abstract 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 available. The Resist‐Accept‐Direct (RAD) framework offers a foundation responding to climate‐induced modification; however, trajectories current practices be understood improve future decisions. Using Wisconsin's diverse as case study, strategies recreational...
Abstract Recreational freshwater fisheries are key components of local economies in many regions. The quality these can be affected not only by harvest but also catch‐and‐release practices. Documenting catch and release among sport fish taxa is, therefore, important to researchers studying fishes managers regulating fisheries. We used an angler diary survey assess taxon‐specific effort, catch, harvest, release, reason for during the 2011 open‐water season. Our study included information on...
Abstract Invasive species have substantial impacts across the globe. While management efforts should aim to minimize undesirable impacts, we a poor understanding of how given invasive vary spatially. Here, develop framework for considering heterogeneity that allows us explore range possible spatial patterns impact. This incorporates two factors—how abundance varies among sites (i.e., distributions) and impact as function abundance–impact curves). Combining these factors creation probability...
Abstract Since the mid‐2000s, recruitment of Walleye Sander vitreus in some northern Wisconsin lakes has declined, potentially because climate‐induced changes lake environments. Yellow Perch Perca flavescens is also an ecologically and culturally important fish species this region, but mechanisms driving are unclear a lack targeted sampling. Previous studies have suggested that these two may be regulated by similar factors, observed declines cause for concern about recruitment. Our...
FisheriesVolume 45, Issue 6 p. 327-333 Essay Assessing the Rage Against Machines: Do Ice Anglers' Electronics Improve Catch and Harvest Rates? Zachary S. Feiner, Corresponding Author Feiner zachary.feiner@wisconsin.gov Wisconsin Department of Natural Resources, Office Applied Science, Science Operations Center, 2801 Progress Rd, Madison, WI, 53716Search for more papers by this authorAlexander W. Latzka, Alexander Latzka Bureau Fisheries Management, WISearch authorMax H. Wolter, Max Wolter...
Abstract As culturally important fisheries for Walleye Sander vitreus exhibit declining densities and reductions in natural recruitment, stocking has increased popularity as a management tool Wisconsin’s Ceded Territory. Walleyes were stocked an average of 160 lakes per year the 1980s compared with 223 2010s. However, many fingerling events are unsuccessful, zero or few fish being detected yearlings electrofishing surveys following year. We integrated 31 years data lake habitat...
Mercury (Hg) contamination in remote lakes stems from atmospheric Hg transport to surface waters and subsequent conversion by microbes neurotoxic methylmercury (MeHg) that biomagnifies pelagic food webs. Despite declines anthropogenic emissions downward trends for precipitation, many fisheries remain contaminated otherwise pristine regions. Here, we report bioaccumulation are confounded a near-decadal oscillation of the water cycle is connected large-scale circulation patterns. In hundreds...
Abstract Climate change is a complex threat to freshwater ecosystems. Effects on aquatic species will likely differ among populations depending seasonal and spatial context, which makes detailed understanding of population responses shifting climate conditions key guiding strategic decision‐making. However, few empirical studies have tested for such context dependency distinct across seasons or at large scales. We used 26 years standardized survey data recreationally economically important...
Atmospheric deposition is the principal source of mercury (Hg) to remote northern landscapes, but its fate depends on multiple factors and internal feedbacks. Here we document long-term trends cycles Hg in air, precipitation, surface water, fish Wisconsin that span past three decades, investigate relationships atmospheric processes other variables, especially regional water cycle. Consistent with declining emission inventories, there was evidence these time series, series for some lakes most...
Abstract Understanding age and growth are important for fisheries science management; however, data not routinely collected many populations. We propose test a method of borrowing age–length across increasingly broader spatiotemporal levels to create hierarchical key (HALK). assessed this by comparing mortality metrics those estimated from lake–year keys ages using seven common freshwater fish species the upper Midwestern United States. Levels used began most specifically within lake time...
Abstract Objective Understanding angler responses to fisheries management actions, such as regulation changes, has important implications for the effectiveness and efficacy of strategies. We examined whether vehicle counters could provide a relative index effort, we present case study demonstrating use assess potential changes in effort associated with implementation more restrictive panfish regulations subset Wisconsin lakes. Methods compared counts compulsory creel‐ game‐camera‐based...
Abstract Many of today's water resources challenges are wicked problems, demanding innovative solutions across the science‐policy‐management nexus. Simultaneously, early‐career researchers in face a shifting professional landscape which academic career paths sparse but where versatile skill sets relevant to issues governments, non‐governmental organizations, and private sector high demand. Here, we describe an adaptable fellowship model that has proven be “win‐win‐win” for researchers,...