CTD Recovery.jpgBiological oceanography is the study of processes affecting the abundance, production, and variability of life in the oceans. At UGA we study some of the smallest organisms in the ocean such as bacteria, phytoplankton, and zooplankton. Although they are small, these organisms collectively have a global impact and affect the productivity of the oceans and how elements such as carbon are utilized and transformed. We work to unravel the factors controlling the growth of their populations, when and where they bloom in the oceans, and their interactions by using field observations, laboratory experiments, and computer modeling. 

Biological Oceanography Personnel

Biological Oceanography Labs

Publications under Biological Oceanography

Shi D., Xu Y., Hopkinson B.M, Morel F.MM.  2010.  Effect of Ocean Acidification on Iron Availability to Marine Phytoplankton. Science. 327(5966):676-679.
Delmont TO, Hammar KM, Ducklow HW, Yager PL, Post AF.  2014.  Phaeocystis antarctica blooms strongly influence bacterial community structures in the Amundsen Sea polynya. Frontiers in Microbiology. 5
Bittar TB, Berger SA, Birsa LM, Walters TL, Thompson ME, Spencer RGM, Mann EL, Stubbins A, Frischer ME, Brandes JA.  2016.  Seasonal dynamics of dissolved, particulate and microbial components of a tidal saltmarsh-dominated estuary under contrasting levels of freshwater discharge. Estuarine, Coastal and Shelf Science. 182:72-85.
Baer SE, Connelly TL, Sipler RE, Yager PL, Bronk DA.  2014.  Effect of temperature on rates of ammonium uptake and nitrification in the western coastal Arctic during winter, spring, and summer. Global Biogeochemical Cycles. :n/a-n/a.
Hopkinson BM.  2014.  A chloroplast pump model for the CO2 concentrating mechanism in the diatom Phaeodactylum tricornutum. Photosynthesis Research. 121(2-3):223-233.
Samukawa M, Shen C, Hopkinson BM, Matsuda Y.  2014.  Localization of putative carbonic anhydrases in the marine diatom, Thalassiosira pseudonana. Photosynthesis Research. 121(2-3):235-249.
Yeung LY, Berelson WM, Young ED, Prokopenko MG, Rollins N, Coles VJ, Montoya JP, Carpenter EJ, Steinberg DK, Foster RA et al..  2012.  Impact of diatom-diazotroph associations on carbon export in the Amazon River plume. Geophysical Research Letters. 39(18):n/a-n/a.
Yager P, Sherrell R, Stammerjohn S, Alderkamp A-C, Schofield O, Abrahamsen P, Arrigo K, Bertilsson S, Garay L, Guerrero R et al..  2012.  ASPIRE: The Amundsen Sea Polynya International Research Expedition. Oceanography. 25(3):40-53.
Kitidis V, Stubbins AP, Uher ünther, Goddard RCUpstill, Law CS, E. Woodward MS.  2006.  Variability of chromophoric organic matter in surface waters of the Atlantic Ocean. Deep Sea Research Part II: Topical Studies in Oceanography. 53(14-16):1666-1684.
Hopkinson BM, Seegers B, Hatta M, Measures CI, B. Mitchell G, Barbeau KA.  2013.  Planktonic C:Fe ratios and carrying capacity in the southern Drake Passage. Deep Sea Research Part II: Topical Studies in Oceanography. 90:102-111.
Goes JI, Gomes Hdo Rosario, Chekalyuk AM, Carpenter EJ, Montoya JP, Coles VJ, Yager PL, Berelson WM, Capone DG, Foster RA et al..  2014.  Influence of the Amazon River discharge on the biogeography of phytoplankton communities in the western tropical north Atlantic. Progress in Oceanography. 120:29-40.
Smith CB, Tolar BB, Hollibaugh JT, King GM.  2013.  Alkane hydroxylase gene (alkB) phylotype composition and diversity in northern Gulf of Mexico bacterioplankton. Frontiers in Microbiology. 4
King GM, Smith CB, Tolar B, Hollibaugh JT.  2013.  Analysis of Composition and Structure of Coastal to Mesopelagic Bacterioplankton Communities in the Northern Gulf of Mexico. Frontiers in Microbiology. 3
Tolar BB, King GM, Hollibaugh JT.  2013.  An Analysis of Thaumarchaeota Populations from the Northern Gulf of Mexico. Frontiers in Microbiology. 4
Hopkinson BM, Barbeau KA.  2012.  Iron transporters in marine prokaryotic genomes and metagenomes. Environmental Microbiology. 14(1):114-128.
Hopkinson B.M, Dupont C.L, Allen A.E, Morel F.MM.  2011.  Efficiency of the CO2-concentrating mechanism of diatoms. Proceedings of the National Academy of Sciences. 108(10):3830-3837.
Garay L, Wotkyns AMarie, Lowry KE, Warburton J, Alderkamp A-C, Yager PL.  2014.  ASPIRE: Teachers and researchers working together to enhance student learning. Elementa: Science of the Anthropocene. 2:000034.
Schofield O, Miles T, Alderkamp A-C, Lee SH, Haskins C, Rogalsky E, Sipler R, Sherrell RM, Yager PL.  2015.  In situ phytoplankton distributions in the Amundsen Sea Polynya measured by autonomous gliders. Elementa: Science of the Anthropocene. 3:000073.
Dornhoffer T, Waldbusser G, Meile C.  2015.  A modeling study of lugworm irrigation behavior effects on sediment nitrogen cycling. Marine Ecology Progress Series. 534
Kujawinski EB, Moran M.A., Stubbins A, Fatland R.  2016.  The Ocean Microbiome: Metabolic Engine of the Marine Carbon Cycle. Microbe Magazine. 11(6):262-267.
Arrigo KR, van Dijken GL, Castelao RM, Luo H, Rennermalm AK, Tedesco M, Mote TL, Oliver H, Yager PL.  2017.  Melting glaciers stimulate large summer phytoplankton blooms in southwest Greenland waters. Geophysical Research Letters.
Ducklow HW, Wilson SE, Post AF, Stammerjohn SE, Erickson M, Lee SH, Lowry KE, Sherrell RM, Yager PL.  2015.  Particle flux on the continental shelf in the Amundsen Sea Polynya and Western Antarctic Peninsula. Elementa: Science of the Anthropocene. 3:000046.
Moura R.L, Amado-Filho G.M, Moraes F.C, Brasileiro P.S, Salomon P.S, Mahiques M.M, Bastos A.C, Almeida M.G, Silva J.M, Araujo B.F et al..  2016.  An extensive reef system at the Amazon River mouth. Science Advances. 2(4):e1501252-e1501252.
Alderkamp A-C, van Dijken GL, Lowry KE, Connelly TL, m Mö, Sherrell RM, Haskins C, Rogalsky E, Schofield O, Stammerjohn SE et al..  2015.  Fe availability drives phytoplankton photosynthesis rates during spring bloom in the Amundsen Sea Polynya, Antarctica. Elementa: Science of the Anthropocene. 3:000043.
Richert I, Dinasquet J, Logares R, Riemann L, Yager PL, Wendeberg A, Bertilsson S.  2015.  The influence of light and water mass on bacterial population dynamics in the Amundsen Sea Polynya. Elementa: Science of the Anthropocene. 3:000044.
Moran M.A, Kujawinski EB, Stubbins A, Fatland R, Aluwihare LI, Buchan A, Crump BC, Dorrestein PC, Dyhrman ST, Hess NJ et al..  2016.  Deciphering ocean carbon in a changing world. Proceedings of the National Academy of Sciences. 113(12):3143-3151.
Wilson SE, Swalethorp R, Kjellerup S, Wolverton MA, Ducklow HW, Yager PL.  2015.  Meso- and macro-zooplankton community structure of the Amundsen Sea Polynya, Antarctica (Summer 2010–2011). Elementa: Science of the Anthropocene. 3:000033.
Rossel PE, Stubbins A, Hach PF, Dittmar T.  2015.  Bioavailability and molecular composition of dissolved organic matter from a diffuse hydrothermal system. Marine Chemistry.
Williams C.M., Dupont A.M., Loevenich J., Post A.F., Dinasquet J., Yager P.L..  2016.  Pelagic microbial heterotrophy in response to a highly productive bloom of Phaeocystis antarctica in the Amundsen Sea Polynya, Antarctica. Elementa.
Hopkinson BM, Meile C, Shen C.  2013.  Quantification of extracellular carbonic anhydrase activity in two marine diatoms and investigation of its role. Plant physiology. 162:1142–1152.
Dittmar T., Stubbins A..  2014.  Dissolved Organic Matter in Aquatic Systems. Treatise on Geochemistry.
Dittmar T., Stubbins A.  2014.  Dissolved Organic Matter in Aquatic Systems. Treatise on geochemistry, ed. H. D. Holland, and K. K. Turekian, 25-156. Oxford: Elsevier. :125-156.