Adey, Walter

Emeritus Research Scientist

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.

education and training

Ph.D. in Phycology and Pleistocene geology, MIT/Harvard University, University of Michigan , Dept of Geology and Geophysics/ Dept of Biology/Botany, Transfer to Univ of Michigan in 1961 to complete thesis 1956 - 1963
B.S. in Geophysics, Massachusetts Institute of Technology , Department of Geology and Geophysics, Thesis: Construction of an RF Mass Spectrometer 1951 - 1955

selected publications

article
- Leclerc, Natasha, Halfar, Jochen, Hetzinger, Steffen, Chan, Phoebe T. W., Adey, Walter H., Tsay, Alexandra, Brossier, Eric, and Kronz, Andreas. 2022. "Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea ice Cover." Paleoceanography and Paleoclimatology, 37, (1), Washington, DC: American Geophysical Union. https://doi.org/10.1029/2021PA004286. 2022
- Doherty, John M., Williams, Branwen, Kline, Esme, Adey, Walter, and Thibodeau, Benoit. 2021. "Climate-Modulated Nutrient Conditions Along the Labrador Shelf: Evidence From Nitrogen Isotopes in a Six-Hundred-Year-Old Crustose Coralline Alga." Paleoceanography and Paleoclimatology 36 (5):https://doi.org/10.1029/2020PA004149 2021
- Leao, Luis Alfredo S., Bahia, Ricardo G., Jesionek, Michel B., Adey, Walter H., Johnson, Gabriel, Salgado, Leonardo T., and Pereira, Renato C. 2020. "Sporolithon franciscanum sp. nov. (Sporolithales, Rhodophyta), a New Rhodolith-Forming Species from Northeast Brazil." Diversity-Basel 12 (5):https://doi.org/10.3390/d12050199 2020
- Williams, Branwen, Chan, Phoebe T. W., Halfar, Jochen, Hargan, Kathryn, and Adey, Walter. 2020. "Arctic crustose coralline alga resilient to recent environmental change." Limnology and Oceanography https://doi.org/10.1002/lno.11640 2020
- Doherty, John, Williams, Branwen, Kline, Esme, Adey, Walter, and Thibodeau, Benoit. 2020. "Climate-modulated nutrient conditions along the Labrador Shelf: Evidence from nitrogen isotopes in a six-hundred-year-old crustose coralline alga." Geophysical Research Letters https://doi.org/10.1002/essoar.10501506.2 2020
- Nash, Merinda C., Adey, Walter, and Harvey, Adela S. 2020. "High Magnesium Calcite and Dolomite composition carbonate in Amphiroa (Lithophyllaceae, Corallinales, Rhodophyta): further documentation of elevated Mg in Corallinales with climate change implications." Journal of Phycology 57 (2):496-509. https://doi.org/10.1111/jpy.13098 2020
- Chan, P. T. W., Halfar, J., Adey, Walter H., Lebednik, P. A., Steneck, R., Norley, C. J. D., and Holdsworth, D. W. 2020. "Recent density decline in wild-collected subarctic crustose coralline algae reveals climate change signature." Geology 48 (3):226-230. https://doi.org/10.1130/G46804.1 2020
- Nash, Merinda C., Diaz-Pulido, Guillermo, Harvey, Adela S., and Adey, Walter H. 2019. "Coralline algal calcification: A morphological and process-based understanding." PloS One 14 (9):Article e0221396. https://doi.org/10.1371/journal.pone.0221396 2019
- Hou, A., Halfar, J., Adey, Walter H., Wortmann, U. G., Zajacz, Z., Tsay, A., Williams, B., and Chan, P. 2019. "Long-lived coralline alga records multidecadal variability in Labrador Sea carbon isotopes." Chemical Geology 526:93-100. https://doi.org/10.1016/j.chemgeo.2018.02.026 2019
- Rahman, M. Azizur, Halfar, Jochen, Adey, Walter H., Nash, Merinda, Paulo, Carlos, and Dittrich, Maria. 2019. "The role of chitin-rich skeletal organic matrix on the crystallization of calcium carbonate in the crustose coralline alga Leptophytum foecundum." Scientific Reports 9:11869. https://doi.org/10.1038/s41598-019-47785-2 2019
- Light, Tricia, Williams, Branwen, Halfar, Jochen, Hou, Alicia, Zajacz, Zoltan, Tsay, Alexandra, and Adey, Walter H. 2018. "Advancing Mg/Ca Analysis of Coralline Algae as a Climate Proxy by Assessing LA-ICP-OES Sampling and Coupled Mg/Ca-δ ¹⁸ O Analysis." Geochemistry, Geophysics, Geosystems (19): 1-19. https://doi.org/10.1029/2018GC007504 2018
- Nash, Merinda C. and Adey, Walter H. 2018. "Anatomical structure overrides temperature controls on magnesium uptake -- calcification in the Arctic/subarctic coralline algae Leptophytum laeve and Kvaleya epilaeve (Rhodophyta; Corallinales)." Biogeosciences (15): 781-795. https://doi.org/10.5194/bg-2017-180 2018
- Pena, Viviana, Hernandez-Kantun, Jazmin J., Adey, Walter H., and Le Gall, Line. 2018. "Assessment of coralline species diversity in the European coasts supported by sequencing of type material: the case study of Lithophyllum nitorum (Corallinales, Rhodophyta)." Cryptogamie Algologie 39 (1):123-137. https://doi.org/10.7872/crya/v39.iss1.2018.123 2018
- Williams, Siobhan, Adey, Walter H., Halfar, Jochen, Kronz, Andreas, Gagnon, Patrick, Belanger, David, and Nash, Merinda. 2018. "Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive Clathromorphum compactum." Biogeosciences 15 (19):5745-5759. https://doi.org/10.5194/bg-15-5745-2018 2018
- Calahan, Dean, Osenbaugh, Edward, and Adey, Walter H. 2018. "Expanded algal cultivation can reverse key planetary boundary transgressions." Heliyon 4 (2):https://doi.org/10.1016/j.heliyon.2018.e00538 2018
- Hetzinger, S., Halfar, J., Kronz, A., Simon, K., Adey, Walter H., and Steneck, R. S. 2018. "Reproducibility of Clathromorphum compactum coralline algal Mg/Ca ratios and comparison to high-resolution sea surface temperature data." Geochimica et Cosmochimica Acta 220:96-109. https://doi.org/10.1016/j.gca.2017.09.044 2018
- 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 (40861):https://doi.org/10.1038/srep40861 2017
- Kangas, Patrick, Mulbry, Walter, Klavon, Philip, Laughinghouse, H. D., and Adey, Walter H. 2017. "High diversity within the periphyton community of an algal turf scrubber on the Susquehanna River." Ecological Engineering 108 (Pt. B):564-572. https://doi.org/10.1016/j.ecoleng.2017.05.010 2017
- Chan, P., Halfar, J., Norley, C. J. D., Pollmann, S. I., Adey, Walter H., and Holdsworth, D. W. 2017. "Micro-computed tomography: Applications for high-resolution skeletal density determinations: An example using annually banded crustose coralline algae." Geochemistry, Geophysics, Geosystems 18 (9):3542-3553. https://doi.org/10.1002/2017GC006966 2017
- Chan, P., Halfar, J., Adey, Walter H., Hetzinger, S., Zack, T., Moore, G. W. K., Wortmann, U. G., Williams, B., and Hou, A. 2017. "Multicentennial record of Labrador Sea primary productivity and sea-ice variability archived in coralline algal barium." Nature Communications 8 (15543):https://doi.org/10.1038/ncomms15543 2017
- Nash, Merinda C. and Adey, Walter H. 2017. "Multiple phases of mg-calcite in crustose coralline algae suggest caution for temperature proxy and ocean acidification assessment: lessons from the ultrastructure and biomineralization in Phymatolithon (Rhodophyta, Corallinales)1." Journal of Phycology 53 (5):970-984. https://doi.org/10.1111/jpy.12559 2017
- 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. https://doi.org/10.4490/algae.2016.31.11.16 2016
- 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. https://doi.org/10.13031/trans.59.11599 2016
- Hernández-Kantún, Jazmin J., 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. https://doi.org/10.2216/16-7.1 2016
- Peña, Viviana, Pardo, Cristina, López, Lúa, Carro, Belén, Hernández-Kantún, Jazmin J., 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. https://doi.org/10.7872/crya/v36.iss4.2015.429 2015
- 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. https://doi.org/10.11646/phytotaxa.224.2.2 2015
- Adey, Walter H., Hernández-Kantún, Jazmin J., 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. https://doi.org/10.1111/jpy.12266 2015
- 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. https://doi.org/10.1657/AAAR0014-061 2015
- Laughinghouse, Haywood Dail, Müller, Kirsten M., Adey, Walter H., Lara, Yannick, Young, Robert, and Johnson, Gabriel P. 2015. "Evolution of the Northern Rockweed, Fucus distichus, in a Regime of Glacial Cycling: Implications for Benthic Algal Phylogenetics." PloS One 10 (12):1-17. https://doi.org/10.1371/journal.pone.0143795 2015
- Hernández-Kantún, Jazmin J., 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. https://doi.org/10.1111/jpy.12319 2015
- 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. https://doi.org/10.2110/palo.2014.075 2015
- 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. https://doi.org/10.1016/j.ecoleng.2015.10.014 2015
- 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. https://doi.org/10.1111/pre.12033 2014
- Hernández-Kantún, Jazmin J., Riosmena-Rodriguez, Rafael, Adey, Walter H., and Rindi, Fabio. 2014. "Analysis of the cox2-3 spacer region for population diversity and taxonomic implications in rhodolith-forming species (Rhodophyta: Corallinales)." Phytotaxa 190 (1):331-354. https://doi.org/10.11646/phytotaxa.190.1.20 2014
- 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. https://doi.org/10.1016/j.ecoleng.2014.07.070 2014
- 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. https://doi.org/10.1016/j.yqres.2013.11.001 2014
- 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. https://doi.org/10.1111/jpy.12056 2013
- 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. https://doi.org/10.1073/pnas.1313775110 2013
- 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 (1761):https://doi.org/10.1038/srep01761 2013
- 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. https://doi.org/10.1038/nclimate1760 2013
- Johnson, Ladd E., Brawley, Susan H., and Adey, Walter H. 2012. "Secondary spread of invasive species: historic patterns and underlying mechanisms of the continuing invasion of the European rockweed Fucus serratus in eastern North America." Biological Invasions 14 (1):79-97. https://doi.org/10.1007/s10530-011-9976-z 2012
- Peña, Viviana, Adey, Walter H., Riosmena‐Rodríguez, Rafael, Jung, Moon‐Yung, Afonso‐Carrillo, Julio, Choi, Han‐Gu, and Bárbara, Ignacio. 2011. "Mesophyllum sphaericum sp. Nov. (Corallinales, rhodophyta): a new maërl-forming species from the northeast Atlantic." Journal of Phycology 47 (4):911-927. https://doi.org/10.1111/j.1529-8817.2011.01015.x 2011
- Adey, Walter H., Kangas, Patrick C., and Mulbry, Walter. 2011. "Algal Turf Scrubbing: Cleaning Surface Waters with Solar Energy while Producing a Biofuel." Bioscience 61 (6):434-441. https://doi.org/10.1525/bio.2011.61.6.5 2011
- Halfar, J., Hetzinger, S., Adey, Walter H., Zack, T., Gamboa, G., Kunz, B., Williams, B., and Jacob, D. E. 2011. "Coralline algal growth-increment widths archive North Atlantic climate variability." Palaeogeography Palaeoclimatology Palaeoecology 302 (1-2):71-80. https://doi.org/10.1016/j.palaeo.2010.04.009 2011
- Adey, Walter H. and Hayek, Lee-Ann C. 2011. "Elucidating Marine Biogeography with Macrophytes: Quantitative Analysis of the North Atlantic Supports the Thermogeographic Model and Demonstrates a Distinct Subarctic Region in the Northwestern Atlantic." Northeastern Naturalist 18:1-128. https://doi.org/10.1656/045.018.m801 2011
- Hetzinger, S., Halfar, J., Zack, T., Gamboa, G., Jacob, D. E., Kunz, B. E., Kronz, A., Adey, Walter H., Lebednik, P. A., and Steneck, Robert S. 2011. "High-resolution analysis of trace elements in crustose coralline algae from the North Atlantic and North Pacific by laser ablation ICP-MS." Palaeogeography palaeoclimatology palaeoecology 302 (1-2):81-94. https://doi.org/10.1016/j.palaeo.2010.06.004 2011
- Hetzinger, S., Halfar, J., Mecking, J. V., Keenlyside, N. S., Kronz, A., Steneck, R. S., Adey, Walter H., and Lebednik, P. A. 2011. "Marine proxy evidence linking decadal North Pacific and Atlantic climate." Climate Dynamics 39 (6):1447-1455. https://doi.org/10.1007/s00382-011-1229-4 2011
- Williams, B., Halfar, Jochen, Steneck, Robert S., Wortmann, U. G., Hetzinger, S., Adey, Walter H., Lebednik, P., and Joachimski, M. 2011. "Twentieth century delta C-13 variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea." Biogeosciences 8 (1):165-174. https://doi.org/10.5194/bg-8-165-2011 2011
- Gamboa, G., Halfar, Jochen, Hetzinger, S., Adey, Walter H., Zack, T., Kunz, B., and Jacob, D. E. 2010. "Mg/Ca ratios in coralline algae record northwest Atlantic temperature variations and North Atlantic Oscillation relationships." Journal of Geophysical Research. C. Oceans 115:C12044-C12044. https://doi.org/10.1029/2010JC006262 2010
- Hetzinger, Steffen, Halfar, Jochen, Kronz, Andreas, Steneck, Robert S., Adey, Walter H., Lebednik, Phillip A., and Schone, Bernd R. 2009. "High-resolution Mg/Ca ratios in a coralline red alga as a proxy for Bering Sea temperature variations from 1902 to 1967." Palaios 24 (6):406-412. https://doi.org/10.2110/palo.2008.p08-116r 2009
- Adey, Walter H., Lindstrom, S., Hommersand, M., and Muller, K. 2008. "The biogeographic original of Arctic endemic seaweeds: a Thermogeographic view." Journal of Phycology 44:1384-1394. 2008
book
- Adey, Walter H., Suskiewicz, Thew S., and Rasher, Douglas B. 2020. Marine Ecosystem Analysis of Gouldsboro and Dyer Bays, Maine. Smithsonian Institution Scholarly Press. https://doi.org/10.5479/si.11950329.v1 2020
- Adey, Walter H., Hernandez-Kantun, Jazmin, Gabrielson, Paul W., Nash, Merinda C., and Hayek, Lee-Ann C. 2018. Phymatolithon (Melobesioideae, Hapalidiales) in the Boreal–Subarctic Transition Zone of the North Atlantic. Smithsonian Institution Scholarly Press. https://doi.org/10.5479/si.1943-667X.41 2018
- 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 Institution Scholarly Press. https://doi.org/10.5479/si.1943667X.40.1 2013
- Adey, Walter H. and Loveland, Karen. 2007. Dynamic Aquaria, Building and Restoring Living Ecosystems. 3rd ed. Elsevier/Academic Press. 2007
chapter
- Hernández-Kantún, Jazmin J., Hall-Spencer, J., Grall, J., Adey, Walter H., Rindi, F., Maggs, I. B., and Pena, V. 2016. "North Atlantic Rhodolith Beds." in Rhodolith/maerl beds: a global perspective, edited by Riosmena-Rodriguez, Rafael, Nelson, W., and Aguirre, J., Springer Berlin Heidelberg. 2016
- Adey, Walter H. and Kangas, P. 2008. "Greenhouses, Microcosms and Mesocosms." in Encyclopedia of Ecology, edited by Jorgensen, Sven Erik and Fath, Brian., 1782-1796. Elsevier. 2008
- Kangas, P. and Adey, Walter H. 2008. "Mesocosm Management." in Encyclopedia of Ecology, edited by Jorgensen, Sven Erik and Fath, Brian., 2308-2313. Elsevier. 2008

Adey, Walter

Background And Education

education and training

Publications

selected publications

article

book

chapter

Affiliation

member of

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Location