A5032403563- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Hydrology and Sediment Transport Processes
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Environmental DNA in Biodiversity Studies
- Mercury impact and mitigation studies
- Transboundary Water Resource Management
- Identification and Quantification in Food
- Fish biology, ecology, and behavior
- Soil erosion and sediment transport
- Wildlife Ecology and Conservation
Ohio Department of Natural Resources
2007-2024
South Dakota State University
2006
Walleye (Sander vitreus) in Lake Erie is a valuable and migratory species that spawns tributaries. We used hydroacoustic sampling, gill net Bayesian state-space modeling to estimate the spawning stock abundance, characterize size sex structure, explore environmental factors cuing migration of walleye Maumee River for 2011 2012. estimated abundance be between 431 000 1 446 individuals 386 400 857 200 2012 (95% credible intervals). A back-calculation from concurrent larval fish study produced...
Abstract Coastal (<3‐m depth) and nearshore (3–15‐m zones of large freshwater lakes are generally rich in complex habitats that important for fisheries, but they often highly degraded understudied. We identified spatial temporal sampling efficiencies monitoring coastal fish communities a lake by use electrofishing. During 2011 2012, we sampled 21 sites Lake Erie's western basin via daytime nighttime electrofishing with multiple replicates throughout the summer season. Nighttime captured...
Abstract We compared two external transmitter styles on size‐classes of bluegills Lepomis macrochirus (laterally compressed) and yellow perch Perca flavescens (fusiform) to determine the effects (1) even distribution weight (2) weights above below recommended 2% fish body weight. Fish were collected, acclimated for 3 weeks before attachment, measured length weight, Floy tagged, randomly assigned treatments (single‐sided transmitter, saddle control). Weight individual recorded every 5 d...
Abstract Objective The Sandusky River, Ohio, is one of the major Lake Erie tributaries that supports migratory Walleye Sander vitreus reproduction. Following construction Ballville Dam in 1913, spawning was limited to an area downstream near Fremont, Ohio. After removal dam 2018, several natural and human‐made features were identified may impede passage by collecting woody debris altering flow conditions. In this study, we use hydrologic modeling sampling understand spatial temporal dynamic...
Abstract Lake Erie walleye ( Stizostedion vitreum ) recruitment fluctuates annually and depends partially on their diet growth during first year of life. In recent decades, age‐0 may be responding to food web changes in western Erie. To determine how have responded prey species abundance, we compared between 2019, 2014 1994–1999. Larval ate predominantly cyclopoids 1994–1999 when calanoids were the most consumed copepod. Juvenile large cladocerans benthic invertebrates 1994 fish was prey....