Publications

In aquatic sediments, active ventilation of burrows is an important component of sediment metabolism, transporting solutes across the …

Algal biofilms, ubiquitous in aquatic systems, reduce the performance of engineered systems and alter ecosystem processes. Biofilm …

The engineering effects of oyster reefs modified the abundance of infauna at distances up to 40 m from reefs, while changes in local …

Biofilm fouling significantly impacts ship performance. Here, the impact of biofilm on boundary layer structure at a ship-relevant, low …

Biofilm fouling has a significant effect on ship performance. Here, the impact of biofilm fouling on boundary layer structure is …

Burrowing organisms play a critical role for the functioning of coastal marine sediments, in part due to their pumping of oxygenated …

Barnacles are suspension-feeding crustaceans found in saline waters. Past research has focused on the hydrodynamics of larvae …

Ambush predation is characterized by an animal scanning the environment from a concealed position and then rapidly executing a surprise …

Burrowing organisms, especially those that live in coastal sediments, are considered ecosystem engineers. The glycerid polychaete …

Projects

Biofilm hydrodynamics

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 and burrowing animals

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.

Lake biogeochemistry

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.

Data

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

Contact

  • eakmurphy
  • Stockholm University, SE-106 91 Stockholm, Sweden