Developing a New Trait-based Understanding of Microbial Communities Based on Metabolic and Elemental and Macromolecular Constraints
Zoe Finkel
Dalhousie University, Canada
We are conducting a suite of laboratory experiments to quantify the relationship between growth rate and the macromolecular and elemental composition of key phytoplankton taxa across a range of cell sizes and taxonomic groups to facilitate the development, parameterization and testing of a new trait-based marine microbial growth model.
CBIOMES Collaborators in the Finkel Group
Rose Terner
Nolan Fehon
Hanna Gingerich
Julia Cantelo
Ying-Yu (Ruby) Hu
News from the Finkel Group
NEW CBIOMES PUBLICATION
Ying-Yu (Ruby) Hu, Andrew J. Irwin, Zoe V. Finkel (2026), Chemical stabilization of glass microfiber type F filters for measuring particulate phosphorus using the extra high-temperature dry combustion method, Limnology...
Polyploidization Helps Diatoms Adapt to Warming Oceans, Study Finds
CBIOMES study reveals genetic strategy helping diatoms survive changing ocean conditions. (more…)
NEW CBIOMES PUBLICATION
Zhenke Li, Yong Zhang, Andrew J. Irwin, Zoe V. Finkel (2025), Polyploidization in diatoms accelerates adaptation to warming, Nat. Clim. Chan., doi: 10.1038/s41558-025-02464-1 Get the PDF [Requires login]
CBIOMES Welcomes Rose Terner
We’re excited to welcome Finkel-Irwin Group graduate student Rose Terner to the CBIOMES community. (more…)
New Model Sheds Light on How Too Much Sunlight Limits Ocean Productivity
CBIOMES researchers have developed a new parameterization of photoinhibition that could significantly improve predictions of marine primary productivity under changing climate conditions. (more…)
NEW CBIOMES PUBLICATION
M. Amirian, M., Z.V. Finkel, E. Devred, and A.J. Irwin (2025), Parameterization of photoinhibition for phytoplankton, Commun Earth Environ, doi: 10.1038/s43247-025-02686-3 Get the PDF [Requires login]
NEW CBIOMES PUBLICATION
Crispin M. Mutshinda, Zoe V. Finkel, and Andrew J. Irwin (2025), Large, regionally variable shifts in diatom and dinoflagellate biomass in the North Atlantic over six decades, PLOS One, doi:...
C:N:P Patterns in the North Pacific
A SCOPE Gradients study with CBIOMES cross-over has provided new insights into how phytoplankton adapt to varying nutrient conditions across the North Pacific Ocean, significantly impacting global carbon storage. (more…)
CBIOMES Welcomes Dany Croteau
A warm CBIOMES-welcome to postdoc who recently moved to Dalhousie to work (more…)
NEW CBIOMES PUBLICATION
Justin D. Liefer, Angelicque E. White, Zoe V. Finkel, Andrew J. Irwin, Mathilde Dugenneb, Keisuke Inomura, François Ribalet, E. Virginia Armbrust, David M. Karl, Matthew H. Fyfe, Christopher M. Brown,...
CBIOMES Welcomes Nolan Fehon
A warm CBIOMES-welcome to Dalhousie MSc candidate Nolan Fehon who recently joined CBIOMES. (more…)
CBIOMES Welcomes Hanna Gingerich
A warm CBIOMES-welcome to Dalhousie MSc candidate Hanna Gingerich who recently joined CBIOMES. (more…)
September 2024 CBIOMES e-meeting Laura Bretherton (Dal)
The macromolecular response of Pelagomonas calceolata to N and P starvation. Please note access to this page is restricted to CBIOMES associates. (more…)
NEW CBIOMES PUBLICATION
Omta, Anne Willem, Justin D. Liefer, Zoe V. Finkel, Andrew J. Irwin, Daniel Sher, Michael J. Follows (2024), A model of time-dependent macromolecular and elemental composition of phytoplankton, Journal of...
CBIOMES Welcomes Julia Cantelo
A warm welcome to Dalhousie graduate student Julia Cantelo who recently joined CBIOMES (more…)
NEW CBIOMES PUBLICATION
Ying-Yu Hu, Andrew J. Irwin , Zoe V. Finkel (2024), An improved method to quantify bulk carbohydrate in marine planktonic samples, Limnology and Oceanography Methods, doi: 10.1002/lom3.10614 Get the PDF [Requires...
NEW CBIOMES PUBLICATION
Stephanie Dutkiewicz, Christopher L. Follett, Michael J. Follows, Fernanda Henderikx-Freitas, Francois Ribalet, Mary R. Gradoville, Sacha N. Coesel, Hanna Farnelid, Zoe V. Finkel, Andrew J. Irwin, Oliver Jahn, David M....
NEW CBIOMES PUBLICATION
Olga Carnicer, Ying-Yu Hu, Vinitha Ebenezer, Andrew J. Irwin, Zoe V. Finkel (2023), Genomic architecture constrains macromolecular allocation in dinoflagellates, Protist, doi: 10.1016/j.protis.2023.125992 Get the PDF [Requires login]
NEW CBIOMES PUBLICATION
Zhengke Li, Yong Zhang, Wei Li, Andrew J. Irwin, Zoe Finkel (2023), Common environmental stress responses in a model marine diatom, New Phytologist, doi: 10.1111/nph.19147 Get the PDF [Requires login]
NEW CBIOMES PUBLICATION
Rosie M. Sheward, Justin D. Liefer, Andrew J. Irwin, Zoe Finkel (2023), Elemental stoichiometry of the key calcifying marine phytoplankton Emiliania huxleyi under ocean climate change: A meta-analysis, Global Change...
NEW CBIOMES PUBLICATION
Niall McGinty, Andrew J. Irwin, Zoe V. Finkel and Stephanie Dutkiewicz (2023), Using ecological partitions to assess zooplankton biogeography and seasonality, Front. Mar. Res., doi: 10.3389/fmars.2023.989770 Get the PDF [Requires login]...
NEW CBIOMES PUBLICATION
Crispin M. Mutshinda, Aditya Mishra, Zoe V. Finkel and Andrew J. Irwin (2023), Density regulation amplifies environmentally induced population fluctuations, PeerJ, doi: 10.7717/peerj.14701 Get the PDF [Requires login]
NEW CBIOMES PUBLICATION
Ying-Yu Hu, Andrew Irwin, Zoe Finkel (2022), Improving Quantification of Particulate Phosphorus, Limnology and Oceanography: Methods, doi: 10.1002/lom3.10517 Get the PDF [Requires login]
October 2022 CBIOMES e-meeting Sing-how Tuo (Dal)
"C:N:P ratio and macromolecular composition in Crocosphaera: small vs. large-cell phenotypes under N-free condition" Please note access to this page is restricted to CBIOMES associates. (more…)
CBIOMES Welcomes Laura Bretherton
A warm welcome to postdoc Laura Bretherton from the Finkel-Dalhousie Group who recently joined CBIOMES. (more…)
CBIOMES Welcomes Nuwanthi Samarasinghe
A warm welcome to graduate student Nuwanthi Samarasinghe from the Finkel-Dalhousie Group who recently joined CBIOMES. (more…)
CBIOMES Welcomes Kevan Merrow
A warm welcome to Kevan Merrow who recently joined the Finkel-Irwin Group. (more…)
NEW CBIOMES PUBLICATION
Joseph T. Siddons, Andrew J. Irwin and Zoe V. Finkel (2022), Graphical Analysis of A Marine Plankton Community Reveals Spatial, Temporal, and Niche Structure of Sub-Communities, Front. Mar. Sci., doi: 10.3389/fmars.2022.943540...
NEW CBIOMES PUBLICATION
Mohammad M. Amirian, Andrew J. Irwin, Zoe V. Finkel (2022), Extending the Monod Model of Microbial Growth with Memory, arXiv:2207:02028 [q-bio.PE] Get the PDF [Requires login]
NEW CBIOMES PUBLICATION
Zhengke Li, Yong Zhang, Wei Li, Andrew J Irwin, Zoe V Finkel (2022), Conservation and architecture of housekeeping genes in the model marine diatom Thalassiosira pseudonana, New Phytologist, doi: 10.1111/nph.18039...
February 2022 CBIOMES All Hands Poster Meeting
A big THANK-YOU to everyone who presented at the February e-meeting! (more…)
NEW CBIOMES PUBLICATION
Vinitha Ebenezer, Ying-Yu Hu, Olga Carnicer, Andrew J. Irwin, Michael J. Follows, Zoe V. Finkel (2022), Elemental and macromolecular composition of the marine Chloropicophyceae, a major group of oceanic photosynthetic picoeukaryotes, Limnology and...
NEW CBIOMES PUBLICATION
Crispin M. Mutshinda, Aditya Mishra, Zoe V. Finkel, Claire E. Widdicombe & Andrew J. Irwin (2022), Bayesian two-part modeling of phytoplankton biomass and occurrence, Hydrobiologia, doi: 10.1007/s10750-021-04789-2 Get the PDF [Requires...
A Systems Level Approach to Biogeography
Microbial simulations bridge the gap between the molecular and ecosystem scales. A new CBIOMES paper presents, for the first time, an interpretation of observed, strain-level, basin-scale biogeography using genome-scale modeling...
October 2021 CBIOMES e-meeting Zoe Finkel (Dalhousie)
"Chloropicophyceae along resource gradients" Please note access to this page is restricted to CBIOMES associates. (more…)
NEW CBIOMES PUBLICATION
Z-K. Li, Y. Zhang, Y. Hu, R. Sheward, A.J. Irwin, Z.V. Finkel (2021),, Dynamic photophysiological stress response of a model diatom to ten environmental stresses, J. Phycol., doi: 10.1111/jpy.13072 Get the PDF [Requires login]...
NEW CBIOMES PUBLICATION
Yong Zhang, Zhengke Li, Kai G. Schulz, Ying-Yu Hu, Andrew J. Irwin, Zoe V. Finkel (2021), Growth-dependent changes in elemental stoichiometry and macromolecular allocation in the coccolithophore Emiliania huxleyi under...
NEW CBIOMES PUBLICATION
O. Carnicer, A.J. Irwin, Z.V. Finkel (2021), Traits influence dinoflagellate C:N:P, European J. Phycology, doi: 10.1080/09670262.2021.1914860 Get the PDF [Requires login]
May 2021 CBIOMES e-meeting Vinitha Ebenezer (Dal)
“Do photosynthetic picoeukaryotes (small cells) have anomalous biochemical composition?” Please note access to this page is restricted to CBIOMES associates. (more…)
CBIOMES Welcomes Sing-how Tuo
A warm welcome to postdoc Sing-how Tuo who joins the Irwin/Finkel Dalhousie CBIOMES Group this month. (more…)
December 2020 CBIOMES (Poster) e-Meeting
To provide an opportunity to "pick up the conversation" and chat with colleagues about where work had gone since our Annual Meeting in June, the December gathering was an all-hands...
November 2020 CBIOMES e-meeting – Zhengke Li (Finkel Group, Dalhousie)
“Housekeeping genes in the marine diatom Thalassiosira pseudonana“ Please note access to this page is restricted to CBIOMES associates. (more…)
2020 Joint Simons Marine Collaborations Meeting
Please note access to this page is restricted to CBIOMES associates only. Besides CBIOMES, the Simons Foundation supports three other marine collaborations: BIOS-SCOPE, PriME, and SCOPE. A joint meeting, October...
September 2020 CBIOMES e-meeting – Olga Carnicer (Dal)
“Traits influence dinoflagellate C:N:P” Please note access to this page is restricted to CBIOMES associates. (more…)
NEW CBIOMES PUBLICATION
A.W. Omta, D. Talmy, K. Inomura, A.J. Irwin, Z.V. Finkel, D. Sher, and M.J. Follows (2020), Quantifying nutrient throughput and DOM production by algae in continuous culture, Journal of Theoretical Biology, doi: 10.1016/j.jtbi.2020.110214 Get the PDF [Requires...
The Finkel Group Goes to Annual Meeting
Zoe Finkel leads the Developing a New Trait-based Understanding of Microbial Communities Based on Metabolic and Elemental and Macromolecular Constraints project. In this video, Zoe presents an overview of her team's...
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