Principal Investigator: David M. Karl (University of Hawaii)
Co-Principal Investigator: Robert R Bidigare
Co-Principal Investigator: John E Dore
Limnology and Oceanography~2003~48~BJORKMAN, K. M. and D. M. KARL~~1049~~~~Bioavailability of dissolved organic phosphorus in the euphotic zone at Station ALOHA, North Pacific Subtropical Gyre.~N~~~~~~
Global Biogeochemical Cycles~2003~17~JOHNSON, K. S., V. A. ELROD, S. E. FITZWATER, J. N. PLANT, F. P. CHAVEZ, S. J. TANNER, R. M. GORDON, D. L. WESTPHAL, K. D. PERRY, J. WU and D. M. KARL~~32-1~~~~Surface ocean - lower atmosphere interactions in the Northeast Pacific Ocean gyre: Aerosols, iron and the ecosystem response.~N~~~~~~
Global Biogeochemical Cycles~2003~17~WU, J., S.-W. CHUNG, L.-S. WEN, K.-K. LIU, Y. L. CHEN, H.-Y. CHEN and D. M. KARL~~8-1~~~~Dissolved inorganic phosphorus, dissolved iron and Trichodesmium in the oligotrophic South China Sea.~N~~~~~~
Limnology and Oceanography~2003~48~BERTILSSON, S., O. BERGLUND, D. M. KARL and S. W. CHISHOLM~~1721~~~~Elemental composition of marine Prochlorococcus and Synechococcus: Implications for the ecological stoichiometry of the sea.~N~~~~~~
Nature~2003~424~DORE, J. E., R. LUKAS, D. W. SADLER and D. M. KARL~~754~~~~Climate-driven changes to the atmospheric CO2 sink in the subtropical North Pacific Ocean.~N~~~~~~
Proceedings of the National Academy of Sciences USA~2003~100~de la TORRE, J. R., L. M. CHRISTIANSON, O. BEJA, M. T. SUZUKI, D. M. KARL, J. HEIDELBERG and E. F. DeLONG~~12830~~~~Proteorhodopsin genes are distributed among divergent marine bacterial taxa.~N~~~~~~
Nature~2003~426~KARL, D. M., E. A. LAWS, P. MORRIS, P. J. leB. WILLIAMS and S. EMERSON~~32~~~~Metabolic balance of the open sea.~N~~~~~~
Limnology and Oceanography~2004~49~LETELIER, R. M., D. M. KARL, M. R. ABBOTT and R. R. BIDIGARE~~508~~~~Light driven seasonal patterns of chlorophyll and nitrate in the lower euphotic zone of the North Pacific Subtropical Gyre.~N~~~~~~
Continental Shelf Research~2004~24~CHEN, Y. L., H.-Y. CHEN, D. M. KARL and M. TAKAHASHI~~527~~~~Nitrogen modulates phytoplankton growth in spring in the South China Sea.~N~~~~~~
Biogeochemistry~2004~70~GALLOWAY, J.N., F. J. DENTENER, D. G. CAPONE, E. W. BOYER, R. W. HOWARTH, S. P. SEITZINGER, G. ASNER, C. CLEVELAND, P. GREEN, E. HOLLAND, D. M. KARL, A. F. MICHAELS, J. PORTER, A. TOWNSEND and C. VOROSMARTY~~153~~~~Nitrogen cycles: Past, present and future.~N~~~~~~
Limnology and Oceanography: Methods~2004~2~BRUM, J. R., G. F. STEWARD and D. M. KARL~~248~~~~A novel method for the measurement of dissolved deoxyribonucleic acid in seawater.~N~~~~~~
Deep-Sea Research~2004~51~WILLIAMS, P. J. le B., P. J. MORRIS and D. M. KARL~~1563~~~~Net community production and metabolic balance at the oligotrophic ocean site: Station ALOHA.~N~~~~~~
Journal of Geophysical Research (Oceans)~2004~109~SAKAMOTO, C. M., D. M. KARL, H. W. JANNASCH, R. R. BIDIGARE, R. M. LETELIER, P. M. WALZ, J. P. RYAN, P. S. POLITO and K. S. JOHNSON~~C05032~~~~Influence of Rossby waves on nutrient dynamics and the plankton community structure in the North Pacific subtropical gyre.~N~~~~~~
Applied and Environmental Microbiology~2004~70~CHURCH, M. J., H. W. DUCKLOW and D. M. KARL~~4079~~~~Light-dependence of 3H-leucine incorporation in the oligotrophic North Pacific Ocean.~N~~~~~~
Proceedings of the National Academy of Sciences USA~2005~102~COLMAN, A. S., R. E. BLAKE, D. M. KARL, M. L. FOGEL and K. K. TUREKIAN~~13023~~~~Marine phosphate oxygen isotopes and organic matter remineralization in the oceans.~N~~~~~~
Aquatic Microbial Ecology~2005~38~CHURCH, M. J., B. D. JENKINS, D. M. KARL and J. P. ZEHR~~3~~~~Vertical distributions of nitrogen-fixing phylotypes at Station ALOHA in the oligotrophic North Pacific Ocean.~N~~~~~~
Frontiers in Ecology and the Environment~2004~2~DONEY, S. C., M. R. ABBOTT, J. J. CULLEN, D. M. KARL and L. ROTHSTEIN~~457~~~~From genes to ecosystems: the ocean?s new frontier.~N~~~~~~
Deep-Sea Research I~2005~52~PRAHL, F. G., B. N. POPP, D. M. KARL and M. A. SPARROW~~699~~~~Ecology and biogeochemistry of alkenone production at Station ALOHA.~N~~~~~~
Aquatic Microbial Ecology~2005~39~BJORKMAN, K. M. and D. M. KARL~~193~~~~Presence of dissolved nucleotides in the North Pacific subtropical gyre and their role in cycling of dissolved organic phosphorus.~N~~~~~~
Applied and Environmental Microbiology~2005~71~CHURCH, M. J., C. M. SHORT, B. D. JENKINS, D. M. KARL and J. P. ZEHR~~5362~~~~Temporal patterns of nitrogenase (nifh) gene expression in the oligotrophic North Pacific Ocean.~N~~~~~~
Bioprocess and Biosystems Engineering~2005~27~JOHNSTON, W., M. COONEY, A. SCHORLEMMER, S. POHL, D. M. KARL and R. BIDIGARE~~163~~~~Carbon mass balance methodology to characterize the growth of pigmented marine bacteria under conditions of light cycling~N~~~~~~
Nature~2005~437~DELONG, E. F. and D. M. KARL~~336~~~~Genomic perspectives in microbial oceanography~N~~~~~~
Nature~2006~439~HUISMAN, J., N. N. P. THI, D. M. KARL and B. SOMMEIJER~~322~~~~Reduced mixing generates oscillations and chaos in the deep chlorophyll maximum~N~~~~~~
Science~2006~311~DELONG, E. F., C. M. PRESTON, T. MINCER, V. RICH, S. J. HALLAM, N.-U. FRIGAARD, A. MARTINEZ, M. B. SULLIVAN, R. EDWARDS, B. R. BRITO, S. W. CHISHOLM and D. M. KARL~~496~~~~Comparative genomics among stratified microbial assemblages in the ocean?s interior~N~~~~~~
Journal of Phycology~2006~42~CORNO, G., R. M. LETELIER, M. R. ABBOTT and D. M. KARL.~~51~~~~Assessing primary production variability in the North Pacific Subtropical Gyre: A comparison of Fast Repetition Rate Fluorometry and 14C measurements~N~~~~~~
Limnology and Oceanography~2006~51~WHITE, A., Y. SPITZ, D. M. KARL and R. M. LETELIER.~~~~~~Flexible elemental stoichiometry in Trichodesmium spp. and its ecological implications~N~~~~~~
Aquatic Microbial Ecology~2006~45~CHURCH, M. J., H. W. DUCKLOW, R. M. LETELIER and D. M. KARL.~~41~~~~Temporal and vertical dynamics in picoplankton photoheterotrophic production in the subtropical North Pacific Ocean~N~~~~~~
Limnology and Oceanography~2007~52~ZEHR, J. P., J. P. MONTOYA, C. SHORT, A. HANSEN, B. D. JENKINS, M. J. CHURCH and D. M. KARL~~169~~~~Nitrogenase gene expression in the North Pacific Subtropical Gyre~N~~~~~~
Marine Ecology Progress Series~2007~332~McANDREW, P. M., K. M. BJÖRKMAN, M. J. CHURCH, P. J. MORRIS, N. JACHOWSKI, P. J. leB. WILLIAMS and D. M. KARL~~63~~~~Metabolic response of oligotrophic plankton communities to deep water nutrient enrichment~N~~~~~~
Journal of Geophysical Research~2007~112~CORNO, G., D. M. KARL, M. J. CHURCH, R. M LETELIER, R. LUKAS, R. R. BIDIGARE and M. R. ABBOTT~~C04021~~~~Impact of climate forcing on ecosystem processes in the North Pacific Subtropical Gyre~N~~~~~~
Limnology and Oceanography~2008~53~CORNO, G., R. M. LETELIER, M. R. ABBOTT and D. M. KARL~~1252~~~~Temporal and vertical variability in photosynthesis in the North Pacific Subtropical Gyre~N~~~~~~
Oceanography~2006~19~ROTHSTEIN, L., J. CULLEN, M. ABBOTT, E. CHASSIGNET, K. DENMAN, S. DONEY, H. DUCKLOW, K. FENNEL, M. FOLLOWS, D. HAIDVOGEL, E. HOFMANN, D. KARL, J. KINDLE, I. LIMA, M. MALTRUD, C. McCLAIN, D. McGILLICUDDY, J. OLASCOAGA, Y. SPITZ, J. WIGGERT and J. YODER~~17~~~~Modeling ocean ecosystems: The PARADIGM program~N~~~~~~
Science~2006~311~DELONG, E. F., C. M. PRESTON, T. MINCER, V. RICH, S. J. HALLAM, N.-U. FRIGAARD, A. MARTINEZ, M. B. SULLIVAN, R. EDWARDS, B. R. BRITO, S. W. CHISHOLM and D. M. KARL.~~496~~~~Community genomics among stratified microbial assemblages in the ocean?s interior~N~~~~~~
Limnology and Oceanography Bulletin~2006~15~KARL, D. M.~~54~~~~Book Review of "Ocean Biogeochemical Dynamics" by J. L. Sarmiento and N. Gruber~N~~~~~~
Environmental Microbiology doi: 10.1111/j.1462-2920.2007.01239.x~2007~~MINCER, T. J., M. J. CHURCH, L. T. TAYLOR, C. PRESTON, D. M. KARL and E. F. DELONG.~~doi~~~~Quantitative distribution of presumptive archaeal and bacterial nitrifiers in Monterey Bay and the North Pacific Subtropical Gyre~N~~~~~~
Public Library of Science (PLOS), Biology~2007~5~RUSCH, D. B. et al.~~0398~~~~The Sorcerer II global ocean sampling expedition: Northwest Atlantic through Eastern Tropical Pacific~N~~~~~~
Science~2007~316~BUESSELER, K. O., C. H. LAMBORG, P. W. BOYD, P. J. LAM, T. W. TRULL, R. R. BIDIGARE, J. K. B. BISHOP, K. L. CASCIOTTI, F. DEHAIRS, M. ELSKENS, M. HONDA, D. M. KARL, D. A.SIEGEL, M. W. SILVER, D. K. STEINBERG, J. VALDES, B. VAN MOOY and S. WILSON~~567~~~~Revisiting carbon flux through the ocean?s twilight zone~N~~~~~~
Deep-Sea Research II~2008~55~McANDREW, P. M., R. R. BIDIGARE and D. M. KARL~~1300~~~~Primary production and implications for metabolic balance in Hawaiian lee eddies~N~~~~~~
Deep-Sea Research II~2008~55~RII, Y. M., S. L. BROWN, F. NENCIOLI, V. KUWAHARA, T. DICKEY, D. M. KARL and R. R. BIDIGARE~~1275~~~~The transient oasis: Nutrient-phytoplankton dynamics and particle export in Hawaiian lee cyclones~N~~~~~~
Progress in Oceanography~2008~76~DORE, J. E., R. M. LETELIER, M. J. CHURCH, R. LUKAS and D. M. KARL~~2~~~~Summer phytoplankton blooms in the oligotrophic North Pacific Subtropical Gyre: Historical perspective and recent observations~N~~~~~~
Oceanography~2007~20~KARL, D. M. and L. PROCTOR~~16~~~~Foundations of microbial oceanography~N~~~~~~
Nature Reviews Microbiology~2007~5~KARL, D. M.~~759~~~~Microbial oceanography: Paradigms, processes and promise~N~~~~~~
Limnology and Oceanography Bulletin~2007~16~KARL, D. M.~~49~~~~Plastics-irradiated-etched: The Nuclepore(R) filter turns 45 years old~N~~~~~~
Biogeosciences~2008~5~MOUTIN, T., D. M. KARL, S. DUHAMEL, P. RIMMELIN, P. RAIMBAULT, B. A. S. VAN MOOY and H. CLAUSTRE~~95~~~~Phosphate availability and the ultimate control of new nitrogen input by nitrogen fixation in the tropical Pacific Ocean~N~~~~~~
Nature Geoscience~2008~1~KARL, D. M., L. BEVERSDORF, K. M. BJORKMAN, M. J. CHURCH, A. MARTINEZ and E. F. DeLONG~~473~~~~Aerobic production of methane in the sea~N~~~~~~
The ISME Journal~2008~2~FONG, A. A., D. M. KARL, R. LUKAS, R. M. LETELIER, J. P. ZEHR and M. J. CHURCH~~663~~~~Nitrogen fixation in an anticyclonic eddy in the oligotrophic North Pacific Ocean~N~~~~~~
Deep-Sea Research II~2008~55~MAHAFFEY, C., C. R. BENITEZ-NELSON, R. R. BIDIGARE, Y. RII and D. M. KARL~~1398~~~~Nitrogen dynamics wihin a wind-driven eddy~N~~~~~~
Limnology and Oceanography~2008~53~CHURCH, M. J., K. M. BJORKMAN, D. M. KARL, M. A. SAITO and J. P. ZEHR~~63~~~~Regional distributions of nitrogen fixing bacteria in the Pacific Ocean~N~~~~~~
Marine Ecology Progress Series~2008~364~KARL, D. M. and R. M. LETELIER~~257~~~~Nitrogen fixation-enhanced carbon sequestration in low nitrete, low chlorophyll seascapes~N~~~~~~
Aquatic Microbial Ecology~2008~52~GRABOWSKI, M. N. W., M. J. CHURCH and D. M. KARL~~175~~~~Nitrogen fixation rates and controls at Stn ALOHA~N~~~~~~
Deep-Sea Research II~2008~55~BUESSELER, K.O., T. W. TRULL, D. K. STEINBERG, M. W. SILVER, D. A. SIEGEL, S.-I. SAITOH, C. H. LAMBORG, P. J. LAM, D. M. KARL, N. Z. JIAO, M. C. HONDA, M. ELSKENS, F. DEHAIRS, S. L. BROWN, P. W. BOYD, J. K. B. BISHOP and R. R. BIDIGARE~~1522~~~~VERTIGO (VERtical Transport In the Global Ocean): a study of particle sources and flux attenuation in the North Pacific~N~~~~~~
Deep-Sea Research I~2008~56~HANNIDES, C. C. S., M. R. LANDRY, C. R. BENITEZ-NELSON, R. M. STYLES, J. P. MONTOYA and D. M. KARL~~73~~~~Export stoichiometry and migrant-mediated flux of phosphorus in the North Pacific subtropical gyre~N~~~~~~
Oceanography~2009~22~DICKEY, T., N. BATES, R. H. BYRNE, G. CHANG, F. P. CHAVEZ, R. A. FEELY, A. K. HANSON, D. M. KARL, D. MANOV, C. MOORE, C. L. SABINE and R. WANNINKHOF~~168~~~~The NOPP O-SCOPE and MOSEAN projects: Advanced sensing for ocean observing systems~N~~~~~~
Marine Ecology Progress Series~2007~332~McANDREW, P. M., K. M. BJÃ?RKMAN, M. J. CHURCH, P. J. MORRIS, N. JACHOWSKI, P. J. le B. WILLIAMS and D. M. KARL~~63~~~~Metabolic response of oligotrophic plankton communities to deep water nutrient enrichment~N~~~~~~
ISME Journal~2008~2~FONG, A. A., D. M. KARL, R. LUKAS, R. M. LETELIER, J. P. ZEHR and M. J. CHURCH~~663~~~~Nitrogen fixation in an anticyclonic eddy in the oligotrophic North Pacific Ocean~N~~~~~~
Marine Ecology Progress Series~2008~371~LETELIER, R. M., P. G. STRUTTON and D. M. KARL~~305~~~~Physical and ecological uncertainties in the widespread implementation of controlled upwelling in the North Pacific Subtropical Gyre~N~~~~~~
Nature~2009~458~VAN MOOY, B. A. S., H. F. FREDRICKS, B. E. PEDLER, S. T. DYHRMAN, D. M. KARL, M. KOBL�ŽEK, M. W. LOMAS, T. J. MINCER, L. R. MOORE, T. MOUTIN, M. S. RAPP� and E. A. WEBB~~69~~~~Phytoplankton in the ocean use non-phosphorus lipids in response to phosphorus scarcity~N~~~~~~
Geophysical Research Letters~2009~36~SIGMAN, D. M., P. J. DiFIORE, M. P. HAIN, C. DEUTSCH and D. M. KARL~10.1029/2008GL035784~~~~~Sinking organic matter spreads the nitrogen isotope signal of pelagic denitrification in the North Pacific~N~~~~~~
Nature~2009~459~BOWLER, C., D. M. KARL and R. R. COLWELL~~180~~~~Microbial oceanography in a sea of opportunity~N~~~~~~
Global Biogeochemical Cycles~2009~23~CHURCH, M. J., C. MAHAFFEY, R. M. LETELIER, R. LUKAS, J.P. ZEHR and D. M. KARL~10.1029/2008GB003418~~~~~Physical forcing of nitrogen fixation and diazotroph community structure in the North Pacific Subtropical Gyre~N~~~~~~
Limnology and Oceanography~2007~52~ZEHR, J. P., J. P. MONTOYA, C. SHORT, A. HANSEN, B. D. JENKINS, M. J. CHURCH and D. M. KARL~~169~~~~Nitrogenase gene expression in the North Pacific Subtropical Gyre~N~~~~~~
Marine Ecology Progress Series~2007~332~McANDREW, P. M., K. M. BJORKMAN, M. J. CHURCH, P. J. MORRIS, N. JACHOWSKI, P. J. leB. WILLIAMS and D. M. KARL~~63~~~~Metabolic response of oligotrophic plankton communities to deep water nutrient enrichment~N~~~~~~
Science~2006~311~DELONG, E. F., C. M. PRESTON, T. MINCER, V. RICH, S. J. HALLAM, N.-U. FRIGAARD, A. MARTINEZ, M. B. SULLIVAN, R. EDWARDS, B. R. BRITO, S. W. CHISHOLM and D. M. KARL.~~496~~~~Community genomics among stratified microbial assemblages in the ocean's interior~N~~~~~~
Limnology and Oceanography~2008~53~STEINBERG, D. K., B. A. S. VAN MOOY, K. O. BUESSELER, P. W. BOYD, T. KOBARI and D. M. KARL~~1327~~~~Bacterial vs. zooplankton control of sinking particle flux in the ocean's twilight zone~N~~~~~~
Journal of Plankton Research~2009~31~BIDIGARE, R. R. F. CHAI, M. R. LANDRY, R. LUKAS, C. C. S. HANNIDES, S. C. CHRISTENSEN, D. M. KARL, L. SHI and Y. CHAO~~1131~~~~Subtropical ocean ecosystem structure changes forced by North Pacific climate variations~N~~~~~~
Nature~2009~458~VAN MOOY, B. A. S., H. F. FREDRICKS, B. E. PEDLER, S. T. DYHRMAN, D. M. KARL, M. KOBLIZEK, M. W. LOMAS, T. J. MINCER, L. R. MOORE, T. MOUTIN, M. S. RAPPE and E. A. WEBB~~69~~~~Phytoplankton in the ocean use non-phosphorus lipids in response to phosphorus scarcity~N~~~~~~
Deep-Sea Research I~2009~56~MOORE, R. M., S. PUNSHON, C. MAHAFFEY and D. KARL~~1449~~~~The relationship between dissolved hydrogen and nitrogen fixation in ocean waters~N~~~~~~
Deep-Sea Research I~2009~56~SIGMAN, D. M., P. J. DiFIORE, M. P. HAIN, C. DEUTSCH, Y. WANG, D. M. KARL, A. N. KNAPP, M. F. LEHMANN and S. PANTOJA~~1419~~~~The dual isotopes of deep nitrate as a constraint on the cycle and budget of oceanic fixed nitrogen~N~~~~~~
Environmental Microbiology~2009~11~EILER, A., D. H. HAYAKAWA, M. J. CHURCH, D. M. KARL and M. S. RAPPE~~2291~~~~Dynamics of the SAR11 bacterioplankton lineage in relation to environmental conditions in the oligotrophic North Pacific subtropical gyre~N~~~~~~
Limnology and Oceanography~2009~54~HEWSON, I., R. W. PAERL, H. J. TRIPP, J. P. ZEHR and D. M. KARL~~1981~~~~Metagenomic potential of microbial assemblages in the surface waters of the central Pacific Ocean tracks variability in oceanic habitat~N~~~~~~
Applied and Environmental Microbiology~2009~75~KONSTANTINIDIS, K. T., J. BRAFF, D. M. KARL and E. F. DeLONG~~5345~~~~Comparative metagenomic analysis of a microbial community residing at a depth of 4,000 meters at Station ALOHA in the North Pacific Subtropical Gyre~N~~~~~~
Proceedings of the U.S. National Academy of Sciences~2009~106~DORE, J. E., R. LUKAS, D. W. SADLER, M. J. CHURCH and D. M. KARL~~12235~~~~Physical and biogeochemical modulation of ocean acidification in the central North Pacific~N~~~~~~
Journal of Atmospheric and Oceanic Technology~2010~27~WHITE, A. E., K. BJORKMAN, E. GRABOWSKI, R. M. LETELIER, S. POULOS, B. WATKINS and D. KARL~~385~~~~An open ocean trial of controlled upwelling using wave pump technology~N~~~~~~
Limnology and Oceanography~2010~55~BEVERSDORF, L. J., A. E. WHITE, K. M. BJORKMAN, R. M. LETELIER and D. M. KARL~~1768~~~~Phosphonate metabolism of Trichodesmium IMS101 and the production of greenhouse gases~N~~~~~~
Limnology and Oceanography~2010~55~WHITE, A. E., D. M. KARL, K. M. BJORKMAN and R. M. LETELIER~~1755~~~~Production of organic matter by Trichodesmium IMS101 as a function of phosphorus source~N~~~~~~
Environmental Microbiology~2010~12~CHURCH, M. J., B. WAI, D. M. KARL and E. F. DeLONG~~679~~~~Abundances of crenarchaeal amoA genes and transcripts in the Pacific Ocean~N~~~~~~
Limnology and Oceanography~2010~55~DUHAMEL, S., S. T. DYHRMAN and D. M. KARL~~1414~~~~Alkaline phosphatase activity and regulation in the North Pacific Subtropical Gyre~N~~~~~~
Nature~2010~465~JOHNSON, K. S., S. C. RISER and D. M. KARL~~1062~~~~Nitrate supply from deep to near-surface waters of the North Pacific subtropical gyre~N~~~~~~
Aquatic Microbial Ecology~2010~59~WILSON, S. T., R. A. FOSTER, J. P. ZEHR and D. M. KARL~~197~~~~Hydrogen production by Trichodesmium erythraeum, Cyanothecesp. and Crocosphaera watsonii~N~~~~~~
Global Biogeochemical Cycles~2010~24~QUAY, P. D., C. PEACOCK, K. BJORKMAN and D. M. KARL~10.1029/2009GB003665~~~~~Measuring primary production rates in the ocean: Enigmatic results between incubation and non-incubation methods at Station ALOHA~N~~~~~~
Oceanography~2010~23~KARL, D. M.~~104~~~~Oceanic ecosystem time-series programs: Ten lessons learned~N~~~~~~
Limnology and Oceanography~2010~55~BONNET, S., E. A. WEBB, C. PANZECA, D. M. KARL, D. G. CAPONE and S. A. SANUDO-WILHELMY~~1959~~~~Vitamin B12 excretion by cultures of the marine cyanobacteria Crocosphaera and Synechococcus~N~~~~~~
Global Biogeochemical Cycles~2010~24~SABA, V. S., et al.~10.1029/2009GB003655~~~~~The challenge of modeling depth-integrated marine primary productivity over multiple decades: A case study at BATS and HOT~N~~~~~~