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Walter Adey

Walter Adey

Emeritus Research Botanist

Phone: 202-633-0923
Fax: 202-357-3037
E-mail Address:

Postal Address
(Mail and Packages):

Department of Botany, MRC-164
Smithsonian Institution
P.O. Box 37012
Washington, DC 20013-7012

Courier Address:
National Museum of Natural History
West Loading Dock
10th and Constitution Ave, NW
Washington, DC 20560-0166

     B.S., MIT; Geophysics
     MIT/Harvard University; Graduate Work,Biology/Paleontology
     PhD, University of Michigan; Botany

Research Interests
     Biosystematics of coralline algae; algal biogeography; coral reef metabolism and its relationship to the algal community; benthic ecosystem dynamics in relation to algae; microcosm and mesocosm techniques; solar/algal methods in aquaculture and municipal/industrial water purification.

Recent Publications - (All Publications)

Moore, G. W. K., Halfar, J., Majeed, H., Adey, Walter H. and Kronz, A. 2017. Amplification of the Atlantic Multidecadal Oscillation associated with the onset of the industrial-era warming. Scientific Reports, 7 doi:10.1038/srep40861

Blersch, D. M., Kangas, P. C. and Adey, Walter H. 2016. Freshwater Marsh Community Structure in a Florida Everglades Mesocosm. Transactions of the ASABE, 59(5): 1305-1312. doi:10.13031/trans.59.11599

Hernandez-Kantun, Jazmin, Gabrielson, Paul, Hughey, Jeffery R., Pezzolesi, Laura, Rindi, Fabio, Robinson, Nestor M., Peña, Viviana, Riosmena-Rodriguez, Rafael, Le Gall, Line and Adey, Walter H. 2016. Reassessment of branched Lithophyllum spp. (Corallinales, Rhodophyta) in the Caribbean Sea with global implications. Phycologia, 55(6): 619-639. doi:10.2216/16-7.1

Jesionek, Michel B., Bahia, Ricardo G., Hernandez-Kanttun, Jazmin J., Adey, Walter H., Yoneshigue-Valentin, Yocie, Longo, Leila L. and Amado-Filho, Gilberto M. 2016. A taxonomic account of non-geniculate coralline algae (Corallinophycidae, Rhodophyta) from shallow reefs of the Abrolhos Bank, Brazil. Algae, 31(4): 317-340. doi:10.4490/algae.2016.31.11.16

Adey, Walter H., Halfar, Jochen, Humphreys, Alexander, Suskiewicz, Thew, Belanger, David, Gagnon, Patrick and Fox, Michael 2015. Subarctic Rhodolith Beds Promote Longevity of Crustose Coralline Algal Buildups and Their Climate Archiving Potential. Palaios, 30(4): 281-293. doi:10.2110/palo.2014.075

Adey, Walter H., Hernandez-Kantun, Jazmin, Johnson, Gabriel and Gabrielson, Paul W. 2015. DNA sequencing, anatomy, and calcification patterns support a monophyletic, subarctic, carbonate reef-forming Clathromorphum (Hapalidiaceae, Corallinales, Rhodophyta). Journal of Phycology, 51(1): 189-203. doi:10.1111/jpy.12266

Bahia, Ricardo G., Amado-Filho, Gilberto, Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Jesionek, Michel B. and Longo, Leila L. 2015. Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic. Phytotaxa, 224(2): 140-158. doi:10.11646/phytotaxa.224.2.2

Bougeois, Laurie, Williams, Branwen, Halfar, Jochen, Konar, Brenda, Adey, Walter H., Kronz, Andreas and Wortmann, Ulrich G. 2015. Does the Coralline Alga Leptophytum foecundum (Kjellman) Capture Paleoenvironmental Variability in the Arctic Ocean?. Arctic, Antarctic, and Alpine Research, 47(2): 375-387. doi:10.1657/AAAR0014-061

Calahan, Dean, Blersch, David and Adey, Walter H. 2015. Weeds in the algae garden – A source of biomass for the algae-to-biofuels program. Ecological Engineering, 85: 275-282. doi:10.1016/j.ecoleng.2015.10.014

Hernandez-Kantun, Jazmin, Rindi, Fabio, Adey, Walter H., Heesch, Svenja, Peña, Viviana, Le Gall, Line and Gabrielson, Paul W. 2015. Sequencing type material resolves the identity and distribution of the generitype Lithophyllum incrustans, and related European species L. hibernicum and L. bathyporum (Corallinales, Rhodophyta). Journal of Phycology: An International Journal of Algal Research, 51(4): 791-807. doi:10.1111/jpy.12319

Laughinghouse, Haywood Dail, Müller, Kirsten M., Adey, Walter H., Lara, Yannick, Young, Robert and Johnson, Gabriel 2015. Evolution of the Northern Rockweed, Fucus distichus, in a Regime of Glacial Cycling: Implications for Benthic Algal Phylogenetics. PloS One, 10(12) doi:10.1371/journal.pone.0143795

Peña, Viviana, Pardo, Cristina, López, Lúa, Carro, Belén, Hernandez-Kantun, Jazmin, Adey, Walter H., Bárbara, Ignacio, Barreiro, Rodolfo and Gall, Line Le 2015. Phymatolithon lusitanicum sp. nov. (Hapalidiales, Rhodophyta): The Third Most Abundant Maerl-Forming Species in the Atlantic Iberian Peninsula. Cryptogamie, Algologie, 36(4): 429-459. doi:10.7872/crya/v36.iss4.2015.429

Bahia, Ricardo G., Amado-Filho, Gilberto, Maneveldt, Gavin W., Adey, Walter H., Johnson, Gabriel, Marins, Bianca V. and Longo, Leila L. 2014. Sporolithon tenue sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta): A new rhodolith-forming species from the tropical southwestern Atlantic. Phycological Research, 62(1): 44-54. doi:10.1111/pre.12033

Sandefur, Heather N., Johnston, Ryan Z., Matlock, Marty D., Costello, Thomas A., Adey, Walter H. and Laughinghouse IV, Haywood D. 2014. Hydrodynamic regime considerations for the cultivation of periphytic biofilms in two tertiary wastewater treatment systems. Ecological Engineering, 71: 527-532. doi:10.1016/j.ecoleng.2014.07.070

Sherman, Clark E., Fletcher, Charles H., Rubin, Ken H., Simmons, Kathleen R. and Adey, Walter H. 2014. Sea-level and reef accretion history of Marine Oxygen Isotope Stage 7 and late Stage 5 based on age and facies of submerged late Pleistocene reefs, Oahu, Hawaii. Quaternary Research, 81(1): 138-150. doi:10.1016/j.yqres.2013.11.001

Adey, Walter H., Halfar, Jochen and Williams, Branwen 2013. The Coralline Genus Clathromorphum Foslie emend. Adey: Biological, Physiological, and Ecological Factors Controlling Carbonate Production in an Arctic-Subarctic Climate Archive. Smithsonian Contributions to the Marine Sciences, 40: 1-41. doi:10.5479/si.1943667X.40.1

Adey, Walter H., Laughinghouse, Haywood Dail, Miller, John B., Hayek, Lee-Ann C., Thompson, Jesse G., Bertman, Steven, Hampel, Kristin and Puvanendran, Shanmugam 2013. Algal turf scrubber (ATS) floways on the Great Wicomico River, Chesapeake Bay: productivity, algal community structure, substrate and chemistry. Journal of Phycology, 49(3): 489-501. doi:10.1111/jpy.12056

Halfar, Jochen, Adey, Walter H., Kronz, Andreas, Hetzinger, Steffen, Edinger, Evan and Fitzhugh, William W. 2013. Arctic sea-ice decline archived by multicentury annual-resolution record from crustose coralline algal proxy. Proceedings of the National Academy of Sciences of the United States of America, 110(49): 19737-19741. doi:10.1073/pnas.1313775110

Hetzinger, S., Halfar, J., Zack, T., Mecking, J. V., Kunz, B. E., Jacob, D. E. and Adey, Walter H. 2013. Coralline algal Barium as indicator for 20th century northwestern North Atlantic surface ocean freshwater variability. Scientific Reports, 3 doi:10.1038/srep01761

Nash, M. C., Opdyke, B. N., Troitzsch, U., Russell, B. D., Adey, Walter H., Kato, A., Diaz-Pulido, G., Brent, C., Gardner, M., Prichard, J. and Kline, D. I. 2013. Dolomite-rich coralline algae in reefs resist dissolution in acidified conditions. Nature Climate Change, 3: 268-272. doi:10.1038/nclimate1760

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