Microbial ecology and evolution, aquatic microbiology, symbiosis, genomics, metagenomics, marine hypoxia, carbon cycle, climate change.

Georges AA, El-Swais E, Craig SE, Li WK, Walsh DA. (2014) Metaproteomic analysis of a winter to spring succession in coastal Northwest Atlantic Ocean microbial plankton. ISME J. [Epub ahead of print]

 Walsh DA, Lafontaine J, Grossart HP. (2013) On the eco-evolutionary relationships of fresh and saltwater bacteria and the role of lateral gene transfer in their evolution. In Lateral Gene Transfer in Evolution, U. Gophna (Ed). 55-77.

 Walsh DA, Hallam SJ. (2011) Bacterial community structure and dynamics in a seasonally anoxic fjord: Saanich Inlet, British Columbia. In Handbook of Molecular Microbial Ecology II: Metagenomics in Different Habitats. FJ. de Bruijn (Ed).

 Zaikova E, Walsh DA, Stilwell C, Mohn WW, Tortell PD, Hallam SJ. (2010) Microbial community dynamics in a seasonally anoxic fjord: Saanich Inlet, British Columbia. Environ Microbiol. 12: 172-191.

 Walsh DA, Zaikova E, Howes CG, Song YC, Wright JJ, Tringe SG, Tortell PD, Hallam SJ. (2009) Metagenome of a versatile chemolithoautotroph from expanding oceanic dead zones. Science. 326: 578-82. Walsh D.A. and Sharma A.K. (2009) Molecular phylogenetics: testing evolutionary hypotheses. Methods Mol Biol. 502: 131-68