CONFERENCE PROGRAM - ASLO

Meeting Program
14:15 Vermilyea, A. W.; Hood, E. W.; Scott, D.; Stubbins, A.; Spencer,
R.; Raymond, P.; Fellman, J.; Schroth, A.: ALASKAN GLACIER
DICHOTOMY: MELT SEASON DYNAMICS OF
NUTRIENTS AND MERCURY
14:30 Schroth, A. W.; Hood, E.; Vermilyea, A.; Fellman, J. B.; Scott, D.:
TIME-SERIES INSIGHTS TO TRACE METAL DYNAMICS
IN ALASKAN CATCHMENTS WITH VARYING DEGREES
OF GLACIATION
14:45 Hood, E. W.; Hock, R. M.; Scott, D. T.; Schroth, A. W.; Zhang, J.:
FUTURE CHANGES IN WATER AND NUTRIENT FLUXES
FROM GLACIER WATERSHEDS IN ALASKA
15:00 Koziol, K. A.; Moggridge, H. L.; Hodson, A. J.: THE ORGANIC
CARBON BUDGET OF A GLACIAL SYSTEM: TEMPORARY
OVERDRAFT OR A MASSIVE DEFICIT?
15:15 Battin, T. J.; Wilhelm, L.; Singer, G. A.; Fasching , C.; Besemer, K.:
VANISHING GLACIERS: CONSEQUENCES FOR AQUATIC
ECOSYSTEMS
16:00 Sommaruga, R.; Kandolf, G.: BACK TO THE ORIGIN:
TURBID GLACIER-FED LAKES LACK HETEROTROPHIC
NANOFLAGELLATES
16:15 Slemmons, K. E.; Saros, J. E.: IMPLICATIONS OF NITROGEN-
RICH GLACIAL MELTWATER FOR PHYTOPLANKTON
DIVERSITY AND PRODUCTIVITY
16:30 Tartarotti, B.; Saul, N.; Sommaruga, R.; Steinberg, C. E.: UV
STRESS-INDUCED DNA DAMAGE IN COPEPODS FROM
CLEAR AND TURBID ALPINE LAKES
16:45 Kammerlander, B.; Sommaruga, R.; Sonntag, B.: CONSEQUENCES
OF A RETREATING GLACIER FOR CILIATES IN
TWO REMOTE ALPINE LAKES OF CONTRASTING
TRANSPARENCY
17:00 Warner, K. A.; Saros, J. E.; Simon, K. S.: NITROGEN SUBSIDIES
IN GLACIAL MELTWATER: IMPLICATIONS FOR HIGH
ELEVATION AQUATIC CHAINS
17:15 Gluchowska, M.; Weslawski , J. M.; Lydersen, C.; Steen, H.; Hop, H.;
Falk Petersen, S.; Zajaczkowski, M.; Walczowski, W.; Stempniewicz,
L.: CAN WE REPLACE GLACIER BAYS WITH RIVER
MOUNTS IN ARCTIC ECOSYSTEM?
SS23 DISSOLVED ORGANIC MATTER DYNAMICS: TOWARDS A
MOLECULAR-LEVEL UNDERSTANDING
Chair(s): Aron Stubbins, aron.stubbins@skio.usg.edu
Thorsten Dittmar, tdittmar@mpi-bremen.de
Jutta Niggemann, jniggema@mpi-bremen.de
Location: Room 357
10:00 Kellerman, A. M.; Dittmar, T.; Kothawala, D. N.; Tranvik, L. J.:
CHEMODIVERSITY OF DISSOLVED ORGANIC MATTER:
PATTERNS AND REGULATION ACROSS 125 BOREAL
LAKES
10:15 Kothawala, D. N.; Stedmon, C. A.; Köhler, S. J.; Müller, R. A.;
Weyhenmeyer, G. A.; Tranvik, L. J.: DECONSTRUCTING
THE STRUCTURE OF DISSOLVED ORGANIC
MATTER IN BOREAL LAKES USING FLUORESCENCE
SPECTROSCOPY
10:30 Goldberg, S. J.; Ball, G.; Allen, B.; Schladow, G.; Simpson, A.; Masoom,
H.; Soong, R.; Aluwihare, L. I.: SEASONAL VARIATION IN
THE SOURCE AND COMPOSITION OF SOLID PHASE
EXTRACTED DOM FROM LAKE TAHOE AND SHORTER
RESIDENCE TIME LAKES IN THE SIERRA NEVADA, CA
43
( * ) represents Invited presentations
ASLO
10:45 Echevarría Román, Y. A.; Pullin, M. J.; Cooray, A. T.; Jackson, K. J.:
DISSOLVED ORGANIC MATTER (DOM) DYNAMICS
IN THREE PRIMARY STREAMS IN A MONTANE
GRASSLAND OF NORTHERN NEW MEXICO
11:00 Kaplan, L. A.; Sleighter, R. L.; Cory, R. M.; Hatcher, P. G.:
COUPLED GEOCHEMICAL AND BIOLOGICAL
CHARACTERIZATION OF DISSOLVED ORGANIC
MATTER FROM A HEADWATER STREAM
11:15 Hatcher, P. G.; Abdulla, H. A.; Sleighter, R. L.: TWO
DIMENSIONAL CORRELATIONS ANALYSIS OF FOURIER
TRANSFORM ION CYCLOTRON RESONANCE MASS
SPECTRA OF DISSOLVED ORGANIC MATTER
11:30 Chen, H.; Abdulla, H. A.; Sun, L.; Mopper, K.; Hatcher, P.:
PHOTOCHEMICAL FLOCCULATION OF ORGANIC
MATTER IN IRON RICH WATERS STUDIED BY ESI FTICR
MASS SPECTROMETRY
11:45 Miller, W. L.; Powers, L. C.: PRELIMINARY WORK ON THE
PHOTOCHEMICAL REACTIVITY OF DEEP OCEAN
REFRACTORY CARBON: “PHOTOCHEMISTRY IN THE DORC”
13:30 Shen, Y.; Fichot, C. G.; Benner, R.: NET DISSOLVED ORGANIC
CARBON ACCUMULATION IN A RIVER-INFLUENCED
OCEAN MARGIN
13:45 Steen, A. D.; Webber, A. T.; Vazin, J. P.; Gainer, P. J.; Wilhelm, S.
W.: LEUCYL AMINOPEPTIDASE IS NOT ENOUGH:
CONTROLS ON THE ACTIVITIES OF DIVERSE
PEPTIDASES IN FRESHWATER AND SEAWATER
14:00 Pollard, P. C.: INSTANTANEOUS MEASURES OF
BACTERIAL RESPIRATION RATE QUANTIFY THE
SUPER LABILE DISSOLVED ORGANIC CARBON IN
FRESHWATER
14:15 Daley, M. C.; Moisander, P.; Urban-Rich, J.: DOC RELEASED BY
THE HYDROMEDUSA NEMOPSIS BACHEI AND ITS
AFFECTS ON BACTERIA
14:30 Johnson, W. M.; Howard-Åkerfeldt, I.; Longnecker, K.; Kido
Soule, M.; Kujawinski, E.: THE IMPACT OF CARBON
SUBSTRATE ON THE METABOLIC PROFILE OF THE
HETEROTROPHIC BACTERIUM RUEGERIA POMEROYI
14:45 Osterholz, H.; Dittmar, T.; Müllenmeister, S.; Kramer, C.; Simon,
M.; Niggemann, J.: FAST TRANSFORMATION OF FRESHLY
PRODUCED COMPOUNDS INTO REFRACTORY
DISSOLVED ORGANIC MATTER
15:00 Niggemann, J.; Gerdts, G.; Dittmar, T.: DIVERSITY OF
DISSOLVED ORGANIC MATTER AS A DIRECT
CONSEQUENCE OF MICROBIAL DIVERSITY?
15:15 Jaekel, U.; Dittmar, T.; Girguis, P. R.; Expedition 336 Scientists:
TRANSFORMATIONS OF ORGANIC MATTER UNDER
DISTINCT SEDIMENTARY REDOX HORIZONS AT
NORTH POND
16:00 Cao, X.; Aiken, G. R.; Mao, J.; Schmidt-Rohr, K.: EVIDENCE
FOR PRESERVATION OF A MAJOR COMPONENT IN
DISSOLVED ORGANIC MATTER FROM RIVER TO
COASTAL MARINE WATERS
16:15 Walker, B. D.; Abdulla, H. A.; Hatcher, P. G.; McCarthy, M. D.;
Druffel, E.: MOLECULAR AND ISOTOPIC VARIABILITY OF
DISSOLVED ORGANIC MATTER WITHIN A UNIQUE
COASTAL UPWELLING SYSTEM: A COMBINED 114C
AND H-NMR AND APPROACH
16:30 Koch, B. P.; Lechtenfeld, O. J.; Flerus, R.; McCallister, S. L.; Schmitt-
Kopplin, P.; Kaiser, K.; Benner, R.; Kattner, G.: A MOLECULAR
PERSPECTIVE ON THE AGEING OF MARINE DISSOLVED
ORGANIC MATTER
MONDAY