Research

I consider myself a broadly trained in the aquatic sciences, which is reflected in the various research projects I have worked on.  Overall,  the aim of my research is to understand anthropogenic effects and impacts on aquatic organisms and environments, and improve the sustainability of fisheries and aquaculture for future generations.

 Projects

 Anthropogenic effects and interactions on aquatic organisms and environments

My research here has broadly focused on two facets, anthropogenic alterations of aquatic environments (e.g., dam removal) and interactions between aquatic organisms and climate change.  In a recent role as a post-doctoral researcher in the Wisconsin Cooperative Fishery Research Unit at UWSP, I worked on several projects that seek to understand the interactions between the climate and percid populations in the upper Midwestern United States.  I am currently evaluating factors (e.g., lake growing degree days, spring temperature variation) that contribute to the success of the stocking of walleye within the context of a changing climate, with the aim of providing recommendations to ensure that future stocking events have the highest probability of success.  At The Ohio State University, I worked as part of a larger project that was related to the ecosystem scale change in the riverscape after a dam removal on a mid size urban river.  I sought to understand the changes in contaminant flux and interactions with the fish communities in the local river reaches. 

From Davis et al 2017, this figure shows the relationship between food chain length and contamination in river reaches in our system

A lake trout S. namaycush that has been treated with the chemical tagging agent Calcein, see Davis and Honeyfield 2020

Seafood Traceability

Traceability is an important issue in seafood, which is plagaued by fradulent labeling.  I have worked on projects using chemical markers to mark individuals, and used chemometrics to discern the geographic origins of shrimp products from major exporting countries.  

The sustainability of fisheries and aquaculture


I have worked on several projects to characterize the sustainability of shrimp aquaculture.  I have worked on projects that evaluate the resource efficiency of shrimp farms, land use of shrimp farming by farm type at a global scale, and comparisons between eco-certified shrimp farms and non-certified farms.  Altogether, the research that I have worked on related to shrimp aquaculture has challenged preconceived paradigms about sustainability in aquaculture and brought new context to the aquaculture sustainability using the “land-sparing, land-sharing” framework as a contextual backdrop for framing the discussion around resource use in aquaculture 

Whiteleg shrimp L. vannamei from the Auburn University Aquatic Nutrition Lab shrimp harvest