I am a benthic ecologist located in Stockholm and Gothenburg, Sweden. I conduct environmental baseline studies and monitoring of benthic habitats for offshore infrastructure. I also conduct original research in marine biomechanics with a focus on how benthic organisms interact with their fluid environment. 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. I have conducted field surveys and laboratory experiments to study the ecology and biomechanics of coastal burrowing organisms. I have conducted long-term, high resolution monitoring of environmntal parameters to investigate the varying and extreme conditions intertidal burrowing animals must contend with and studied the effects of temperature on behavior and mass transport in worm burrows. I also conducted detailed laboratory studies on the effects of biofilms on boundary layer flow dynamics, finding that biofilm fouling significantly impacts ship performance due to a large drag penalty. During a postdoctoral position at Umeå University, in northern Sweden, I studied interactions between burrowing organisms and biofilm on sediment-water transport processes in lakes.
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 and Reidenbach, MA (2024). Flow dynamics and pump kinematics in polychaete burrows constructed in a transparent mud analog ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/4e3425fe68a4f0be4b257cdb973e9fbe
Murphy, EAK and Reidenbach, MA (2024). Sediment temperature at three depths below sediment surface in intertidal mudflats in Virginia, 2013-2014 ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/ac3e0a79b78b59940d9fcdc94c36e58d
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 and 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, and 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