I study aquatic biomechanics: how organisms interact with their fluid environment. I am a postdoc in the Department of Zoology at Stockholm University, where I am working on the hydrodynamics of fish schooling. I use my background in both organismal biology and fluid physics to study how organisms respond to environmental change, influence ecosystem processes, and impact engineered systems. Previous work utilized field surveys and laboratory experiments to study the biomechanics of coastal burrowing organisms, including burrowing kinematics and fluid and mass transport within burrows. I also conducted laboratory studies of the effects of biofilms on boundary layer flow dynamics, because biofilm fouling significantly impacts ship performance due to a large drag penalty. Previously, I was a postdoc at Umeå University, in northern Sweden, where I studied interactions between burrowing organisms and biofilm on sediment-water transport processes.
PhD, Environmental Sciences, 2018
University of Virginia
BA, Integrative Biology, 2009
University of California, Berkeley
Biofilm fouling is ubiquitous on ship hulls and other aquatic surfaces, such as corals and soft sediments. However, little is know about the effects of biofilm on boundary layer hydrodynamics. I use high resolution Particle Image Velocimetry (PIV) to image and quantify the flow over biofilms in a high speed flow tunnel. Click to learn more.
Intertidal mudflats are home to a diversity of organisms, many of whom burrow into the sediment for refuge from the elements, to find food, or to escape predation. These burrowing animals are called infauna, and they are considered ecosystem engineers because of the important role they play in coastal systems. Click to learn more.
We are studying the interacting effects of burrow building animals, biofilms, and oxygen dynamics on the fluxes of nutrients between the sediment and water in boreal lakes.
Published data sets
Murphy, EAK, Barros, JM, Schultz, MP, Flack, KA, Steppe, CN, & Reidenbach, MA. (2021). PIV vector fields from: Boundary layer hydrodynamics of patchy biofilms [Data set]. Zenodo. https://doi.org/10.5281/zenodo.5644626
Murphy, EAK & Volaric, MP. (2021). Benthic invertebrates from intertidal mudflats at the on the coast of Virginia, 2016 ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/7deadc96ff337c3a30a82df0bb39ae3b
Murphy, EAK, Barros, JM, Schultz, MP, Flack, KA, Steppe, CN, & Reidenbach, MA. (2018). Biofilm flow data from: Roughness effects of diatomaceous slime fouling on turbulent boundary layer hydrodynamics [Data set]. Zenodo. http://doi.org/10.5281/zenodo.1175014
deVries MS, Murphy EAK, Patek SN (2012) Data from: Strike mechanics of an ambush predator: the spearing mantis shrimp. Dryad Digital Repository. https://datadryad.org/stash/dataset/doi:10.5061/dryad.d83g1