Cara Manning

Ph.D., Massachusetts Institute of Technology/Woods Hole Oceanographic Institution

Assistant Professor of Marine Sciences

I’m an Assistant Professor in the UConn Department of Marine Sciences. My research focuses on developing and applying methods to measure gases and other biogeochemical tracers (e.g., stable isotopes) in the environment. Much of my research involves applying mobile and/or high throughput methods to study systems with high spatiotemporal variability. I have experience conducting research on topics ranging from marine productivity, to Arctic greenhouse gas emissions, to the environmental impacts of resource development and nutrient pollution. Check out my website and our lab Instagram for more info on what we are working on!

Funded research
Unlocking the noble gas toolbox to quantify rates of denitrification and nitrogen fixation in marine systems
Funded by NSF OCE Chemical Oceanography program; award 2318985
PI: Cara Manning; Co-PI: Craig Tobias

Collaborative Research: Exploring the dynamics of nitrous oxide in the Southern Benguela Upwelling System
Funded by NSF OCE Chemical Oceanography program; award 2241432
PI: Julie Granger; Co-PIs: Cara Manning, Samantha Siedlecki

Please check my Google Scholar and ResearchGate pages for a complete, up-to-date publication list. Open access versions are available through the publications page of my website ( or by emailing me. I have compiled selected publications and preprints below.

Interannual variability in methane and nitrous oxide concentrations and sea-air fluxes across the North American Arctic Ocean (2015–2019)
CCM Manning, Z Zheng, L Fenwick, RD McCulloch, E Damm, RW Izett, WJ Williams, S Zimmermann, S Vagle, and PD Tortell (2022)
Global Biogeochemical Cycles, e2021GB007185

ΔO2/N2′ as a new tracer of marine net community production: Application and evaluation in the Subarctic Northeast Pacific and Canadian Arctic Ocean
RW Izett, RC Hamme, C McNeil, CCM Manning, A Bourbonnais, and PD Tortell
Frontiers in Marine Sciences, 8:718625

Rapid advances in mobile mass spectrometry enhance tracer hydrology and water management
AL Popp*, CCM Manning*, and JLA Knapp* (2021)
*All authors contributed equally
Water Resources Research, 57(6), e2021WR029890

First estimation of the diffusive methane flux and concentrations from Lake Winnipeg, a large, shallow and eutrophic lake
R Mandryk, DW Capelle, CCM Manning, P Tortell, RD McCulloch, and T Papakyriakou (2021)
Journal of Great Lakes Research, 47(3), 741-750

River inflow dominates methane emissions in an Arctic coastal system
CC Manning, VL Preston, SF Jones, APM Michel, DP Nicholson, PJ Duke, M Ahmed, K Manganini, BGT Else, and PD Tortell (2020)
Geophysical Research Letters, 47, e2020GL087669

A new in situ method for tracing denitrification in riparian groundwater
AL Popp, CC Manning, MS Brennwald, R Kipfer (2020)
Environmental Science & Technology  54(3), 1562-1572

Changes in gross oxygen production, net oxygen production, and air-water gas exchange during seasonal ice melt in Whyococmagh Bay, a Canadian estuary in the Bras d’Or Lake system
CC Manning, RHR Stanley, DP Nicholson, B Loose, A Lovely, P Schlosser, and BG Hatcher (2019)
Biogeosciences, 17, 3351-3376

Refined estimates of net community production in the Subarctic Northeast Pacific derived from ΔO2/Ar measurements with N2O-based corrections for vertical mixing
RW Izett, CC Manning, RC Hamme, and PD Tortell (2018)
Global Biogeochemical Cycles, 32, 326–350

Revising estimates of aquatic gross oxygen production by the triple oxygen isotope method to incorporate the local isotopic composition of water
CC Manning
, EM Howard, DP Nicholson, B Ji, ZO Sandwith, and RHR Stanley (2017)
Geophysical Research Letters, 44, 10,511–10,519

Impact of recently upwelled water on productivity investigated using in situ and incubation-based methods
CC Manning
, RHR Stanley, DP Nicholson, JM Smith, JT Pennington, MR Fewings, ME Squibb, and FP Chavez (2017)
Journal of Geophysical Research: Oceans, 122

Quantifying air-sea gas exchange using noble gases in a coastal upwelling zone
CC Manning, 
RHR Stanley, DP Nicholson, and ME Squibb (2016)
IOP Conference Series: Earth and Environmental Science. 35, 012017, 13 pages.

Continuous measurements of dissolved Ne, Ar, Kr, and Xe with a field-deployable gas equilibration mass spectrometer
CC Manning
, RHR Stanley, and DE Lott (2016)
Analytical Chemistry. 88, 3040–3048

Impact of deep-water renewal events on fixed nitrogen loss from seasonally-anoxic Saanich Inlet
CC Manning
, RC Hamme, and A Bourbonnais (2010)
Marine Chemistry 122(1-4)1-10

Cara Manning
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