Gayantonia Franze

2010 Ph.D. in Marine Science and Engineering, Universidà degli Studi di Napoli Federico II and Stazione Zoologica Anton Dohrn, Napoli, Italy. Advisors: Dr. Monica Modigh and Dr. Maurizio Ribera d'Alcalà

2006 MS in Natural Science, Summa Cum Laude, University of Naples Federico II, Naples, Italy. Advisor: Dr. Olga Mangoni

Professional Appointments

2019 present  Research Scientist, Institute of Marine Research, Flødevigen, Norway

2016-2019   Postdoctoral Research Associate, Graduate School of Oceanography, University of Rhode Island, Narragansett, RI USA. Advisor: Dr. Susanne Menden-Deuer

2014-2016  Postdoctoral Research Associate, University of Akron, Akron, OH USA. Advisor: Dr. Peter Lavrentyev

2013    Research Assistant, Marine Strategy Research Program funded by The Italian Institute for Environmental Protection and Research (ISPRA), Stazione Zoologica Anton Dohrn, Napoli, Italy. Advisor: Dr. Adriana Zingone

2010–2013  Postdoctoral Research Associate, University of Akron, Akron, OH USA. Advisor: Dr. Peter Lavrentyev

2006  Research Assistant, VECTOR Research Program funded by Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR), Stazione Zoologica Anton Dohrn, Napoli, Italy. Advisor: Dr. Monica Modigh

Research Projects

2022 Ecosystem Response to Darkening. IMR pilot project aiming at unraveling the effects of coastal darkening on the lower food web components. Contribution: Project Leader.

2020 Monitoring of climate and plankton in the North Sea Skagerrak.  Contribution: Project Leader of The North Sea Plankton Monitoring Project. IMR

2019-2023 Zooplankton population structure and functioning on the coast and within fjords. Within the Strategic initiative - Assessing cumulative impacts on the Norwegian coastal ecosystem and its services (Coast-Risk). : Co-PI, Proposal writing, investigation, methodology, data analysis, data reports, writing scientific papers, participation to conferences.

2019-2023 Anthropogenic impact and role of phytoplankton seasonal growth dynamics on zooplankton size distribution in Norwegian Coastal Waters. Within the Strategic initiative - Assessing cumulative impacts on the Norwegian coastal ecosystem and its services (Coast-Risk).  Contribution Co-PI Proposal writing, investigation, methodology, data analysis, data reports, writing scientific papers, participation to conferences

2017-2019 Quantifying Temperature Dependence In Growth and Grazing Rates of Planktonic Herbivores. NSF Division of Ocean Sciences. Award # 1736635 . Contribution: Proposal writing, investigation, methodology, data analysis, data reports, writing scientific papers, participation to conferences.

2017-2018 North Atlantic Areosol and Marine Ecosystem Study (NAAMES). NASA. Contribution: Collaboration on producing estimates of phytoplankton growth and mortality due to predation. Campaign participation, data analysis, writing scientific papers.

2017-2018 The heat is on: measuring the effects of increasing ocean temperatures on the growth and grazing rates of marine, single-celled herbivores. Rhode Island Science & Technology Advisory Council. Contribution Proposal writing, investigation, methodology development, data analysis, data reports, writing scientific papers, participation to conferences.

Collaborative Research: The effects of diatom-produced polyunsaturated aldehydes on the microbial food wed in temperate and polar waters. NSF Division of Ocean Sciences. Award # 1357168. Contribution : Proposal writing, conceptualization, investigation, methodology, data analysis, data reports, writing scientific papers, participation to conferences.

 CarbonBridge: Bridging Productivity regimes in the Arctic Ocean. Norwegian Research Council. http://site.uit.no/carbonbridge/
ontribution: Development and management of the microzooplankton component of the project, conceptualization, investigation, methodology, data analysis, data reports, writing scientific papers, participation to conferences.  

2010-2013 Impacts of Climate Change and Ice Conditions on Microbial Food Web Dynamics in the Barents Sea. NSF Division of Polar Program. Award # 0909372. Contribution: Development and management of the experiments and field expeditions, data analysis, data reports, writing scientific papers, participation to conferences.

Oceanographic cruises and field experience

2020-2021 North Sea ecosystem Cruise 

2019 Norwegian Coast, Kristine Bonnevie

2018 The North Atlantic Aerosol and Marine Ecosystem Study IV, R / V Atlantis

2017 The North Atlantic Aerosol and Marine Ecosystem Study III, R / V Atlantis

2014 Carbon Bridge_3, Barents Sea (North of Svalbard), R / V Halmer Hansen

         Carbon Bridge_2, Barents Sea (North of Svalbard), R / V Halmer Hansen

2013  Ecosystem Survey, Barents Sea, R / V GO Sars

2011 Conflux Research Cruise, Barents Sea, R / V Halmer Hansen

2010 Ecosystem Survey, Barents Sea, R / V GO Sars

2010 ATP Research Cruise, Barents Sea, R / V Jan Mayen

2007 BIOPT Research Cruise, East Mediterranean, R / V Urania

2004-2009  Weekly sampling at LTER-MC, Gulf of Naples, Mediterranean Sea, R / V Vettoria

2004  ALT Research Cruise, Tyrrhenian Sea, R / V Urania

teaching experience

Mentor

2016-2019    4 Undergraduate students, Graduate School of Oceanography, University of Rhode Island, Narragansett, RI USA

2011-2016  3 Undergraduate students, University of Akron, Akron OH USA

Guest Lecturer

2018 Microbial responses to environmental stress, University of Massachusetts Dartmouth, MA

2018 Microbial responses to environmental stress, University of Rhode Island, RI

2015-2016  Principles of Biology, University of Akron, Akron OH USA

2015 Community Ecology, University of Akron, Akron OH USA

2012  Microbial Food Web in the Arctic, Anton Dohrn Zoological Station, Naples, Italy

2007 Marine Biology, University of Naples Federico II, Italy

Teaching Assistant

2008 Science Laboratory for Primary School, Benevento, Italy

2007 Marine Biology Laboratory, University of Naples Federico II, Italy

Outreach activities

2021 TedxArendal, Arendal in Motion, Arendal, Norway

2019 TedxArendal, Blue Hour, Arendal, Norway

2018 Mount Ogden Junior High, Ogden, UT USA

2017 R / V Endeavor Open House, Narragansett, RI USA

2016 R / V Endeavor Open House, Narragansett, RI USA

                        North Kingstown High School, Kingstown, RI USA

2015 Buchtel CLC, Wetland Project, Akron OH USA

2011-2015 Great Lakes Science Center, Cleveland, OH USA

Cleveland Museum of Natural History, Cleveland, OH USA

Akron Public Library, Akron, OH USA

Peer-review Publications:

2022 Anderson, S., G. Franzé, et al., The Interactive Effects of Temperature and Nutrients on a Spring Phytoplankton Community. Limnology and Oceanography, in press.

2021 Marrec P, H McNair, G Franzè, F Morison, JP Strock, S. Menden-Deuer, Seasonal variability in planktonic food web structure and function of the Northeast US Shelf. . Limnology and Oceanography, 66, 1440-1458, doi.org/10.1002/lno.11696.

2020 Menden-Deuer S., F. Morison, AL Montalbano, G. Franzè et al., Multi-instrument assessment of phytoplankton abundance and cell sizes in mono-specific laboratory cultures and whole plankton community composition in the North Atlantic. . Frontiers in Marine Science, 7, 264 doi.org/10.3389/fmars.2020.00254

2020 Morison F., G. Franzè, E. Harvey, S. Menden ‐ Deuer, Light fluctuations are key in modulating plankton trophic dynamics and their impact on primary production. Limnology and Oceanography Letters, 5: 346-353. doi: 10.1002 / lol2.10156.

2020 Franzè G. and S. Menden-Deuer, Common temperature-growth dependency and acclimation response in three herbivorous protists. Marine Ecology Progress Series, 634, 1-13, doi: 10.3354 / meps13200.

2019 Morison F., E. Harvey, G. Franzè, S. Menden ‐ Deuer, Storm-induced predator-prey decoupling promotes springtime accumulation of North Atlantic phytoplankton. Frontiers in Marine Science, 6, 608, doi: 10.3389 / fmars.2019.00608.

2019 Olli K., Halvorsen E., Vernet M., Lavrentyev PJ, Franzè G., Sanz-Martin M., Paulsen ML, Reigstad M., Food Web Functions and Interactions During Spring and Summer in the Arctic Water Inflow Region: Investigated Through Inverse Modeling. Frontiers in Marine Science, 6, 244, doi: 10.3389 / fmars.2019.00244.

2019 Lavrentyev PJ, G. Franzè, BG Moore, Microzooplankton distribution and dynamics in the eastern Fram Strait and the Arctic Ocean in May and August 2014, Frontiers in Marine Science, 6, 264, doi: 10.3389 / fmars.2019.00264

2019 Svensen C., E. Halvorsen, M. Vernet, G. Franzè, K. Dmoch, PJ Lavrentyev, S. Kwasniewski 2019, Zooplankton communities associated with new and regenerated primary production in the Atlantic inflow north of Svalbard, Frontiers in Marine Science 6, 293 doi: 10.3389 / fmars.2019.00293

2018 Menden-Deuer S., C. Lawrence, G. Franzè, Herbivorous protist growth and grazing rates at in situ and artificially elevated temperatures during an Arctic phytoplankton bloom, PeerJ 6, e5264 doi: 10.7717 / peerj.5264

2018 Franzè G., JJ Pierson, DK Stoecker, PJ Lavrentyev, Diatom-produced allelochemicals trigger trophic cascades in the planktonic food web. Limnology and Oceanography 63 (3), 1093-1108

                Franzè G. and PJ Lavrentyev, Microbial Food Web structure and dynamics across a natural temperature gradient in a productive polar shelf system. Marine Ecology Progress Series 569, 89-102.

2015 Lavrentyev PJ, G. Franzè, JJ Pierson, DK Stoecker, The Effect of Dissolved Polyunsaturated Aldehydes on Microzooplankton Growth Rates in the Chesapeake Bay and Atlantic Coastal Water. Marine Drugs 13, 2834-2856.

2015 D'Alelio D., MG Mazzocchi, M. Montreso, D. Sarno, A. Zingone, I. Di Capua, G. Franzè et al., The green-blue swing: Plasticity of plankton food-web in response to coastal oceanographic dynamics, Marine Ecology 36 (4), 1155-1170.

2014  Lavrentyev PJ, HA Vanderploeg, G. Franzè et al., Microzooplankton distribution, dynamics and trophic interactions with phytoplankton and Quagga mussels in Saginaw Bay, Lake Huron. Journal of Great Lake Research 40, 1-3.

2014 Franzè G. and PJ Lavrentyev, Microzooplankton growth rates examined across a temperature gradient in the Barents Sea. PLoS ONE 9 (1) e86429. doi: 10.1371 / journal.pone.0086429.

2013 Franzè G. and M. Modigh, Experimental evidence for internal predation in microzooplankton communities. Marine Biology, 160, 3103-3112.

2009  Modigh M. and G. Franzè, Changes in phytoplankton and microzooplankton populations during grazing experiments in a Mediterranean coastal site. Journal of Plankton Research, 31, 853-864.

 
Book Chapters

2010  Plankton marino studio methodology. Editors: Giorgio Socal, Isabella Buttino, Marina Cabrini, Olga Mangoni, Antonella Penna, Cecilia Totti. Publisher ISPRA-SIBM, Roma, Manuali e Linee guida 56/2010. ISBN / ISSN: 978-88-448-0427-5.

Contibuted Chapter [41] Microzooplancton. Fonda Umani S., Franzè G., Modigh M., Monti M.

Contibuted Chapter [45] Method of Dilution for the Stimulation of the Predation of the Microzooplanctone (and of the Nanoplancton Eterotroph) Fonda Umani S., Beran A., Franzè G., Modigh M.

Public DataBase

2021 Franzè G., Menden-Deuer, S. Comparison of abundance-based growth rate predicted following Q10 model, Eppley's equation, and the linear model obtained in Franzè and Menden-Deuer, 2020. Biological and Chemical Oceanography Data Management Office (BCO- DMO). doi: 10.26008 / 1912 / bco-dmo.857356.1 

2021 Franzè G., Menden-Deuer, S. Changes in biovolume in three herbivorous protists measured across a temperature gradient ranging from 0 to 22 degrees Celsius for 30 days. Biological and Chemical Oceanography Data Management Office (BCO-DMO). doi: 10.26008 / 1912 / bco-dmo.857328.1

2021 Franzè G., Menden-Deuer, S. Abundance- and biomass-based growth rates of three heterotrophic protists measured across a temperature gradient ranging from 0 to 22 degrees Celsius for 30 days. Biological and Chemical Oceanography Data Management Office (BCO-DMO). doi: 10.26008 / 1912 / bco-dmo.857267.1

2017 Lavrentyev PJ and G. Franzè, CarbonBridge August 2014: Microzooplankton biomass distribution in the waters northwest of Spitsbergen. University of Akron, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.881805.

2017 Lavrentyev PJ and G. Franzè, CarbonBridge May 2014: Microzooplankton biomass distribution in the waters northwest of Spitsbergen. University of Akron, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.881808

Conferences Proceedings

2008 Franzè G., I. Santarpia, O. Mangoni, M. Modigh, Impact of the microzoplancton on the composition of the phytoplankton of the Gulf of Naples. Proceedings of the XVII Conference of the Italian Association of Oceanology and Limnology, 19, pp. 211-214.

Conferences and Communications

2019 Morison, F .; G. Franzè, E. Harvey, S. Menden-Deuer. The influence of mixed-layer light variability on plankton population dynamics. ASLO Aquatic Science Meeting, San Juan, Puerto Rico.

2019 Ward, A .; B Franzè, A. Barton, S. Menden-Deuer. Effects of turbulence on microzooplankton growth and grazing. ASLO Aquatic Science Meeting, San Juan, Puerto Rico.

2019 Anderson, S .; J. Kling, J .; C. Kremer, Franzè, G .; DA Hutchins, E. Litchman, S. Menden-Deuer, T. Rynearson. Winners and losers in a changing tide: temperature- nutrient impact on phytoplankton community dynamics. ASLO Aquatic Science Meeting, San Juan, Puerto Rico.

2019 Kling, J .; M. Phan, F. Fu, S. Anderson, G. Franzè, P. Wilburn, C. Kremer, E. Litchman, T. Rynearson, DA Hutchins. Thermal diversity in a coastal marine synechococcus community selected under low- and high-temperatures. ASLO Aquatic Science Meeting, San Juan, Puerto Rico.

2018 Franzé G., S. Anderson, C. Kremer, J. Kling, P. Wilburn, DA Hutchins, E. Litchman, T. Rynearson, S. Menden-Deuer. Direct and indirect effects of temperature and nutrients on plankton community dynamics. Ocean Science Meeting, Portland, Oregon, USA

2018 Stoecker DK, JJ Pierson, GW Smalley, G. Franzè, PJ Lavrentyev. Comparison of the functional response of Acartia tonsa to PUA-producing and non-producing strains of the diatom Skeletonema marinoi. Ocean Science Meeting, Portland, Oregon, USA

2017 Franzè G. and S. Menden-Deuer. Temperature dependence of the heterotrophic protists Oxyrrhis marina. RI NSF EPSCoR 2017 Annual Research Symposium, Providence, RI

2017 Menden-Deuer S., SR Anderson, G. Franzè, MK Kane, NA D'ouza, F. Morison, A. Oikonomou. When the going get's tough: evaluating herbivore behavior and population dynamics under sub-optimal conditions. ASLO Aquatic Sciences Meeting, Honolulu, HI.

2016 Pierson JJ, PJ Lavrentyev, DK Stoecker, G. Franzè, G. Smalley. Taxa-specific effects of polyunsaturated aldehydes in micro- and meso-zooplankton alter food web dynamics. ICES / PICES 6th zooplankton production symposium, Bergen, Norway.

2016 Franzè G., JJ Pierson, DK Stoecker, PJ Lavrentyev. The diatom-produced polyunsaturated aldehydes can induce trophic cascades in the planktonic food web in productive coastal waters. Ocean Science Meeting, New Orleans, Louisiana USA.

2016 Lavrentyev PJ, G. Franzè, C. Svensen, FB Moore. Microzooplankton abundance, composition and trophic interactions with phytoplankton and pelagic copepods in the ice-covered and open waters of the Eastern Fram Strait. Ocean Science Meeting, New Orleans, Louisiana USA.

2015 Franzè G., PJ Lavrentyev, JJ Pierson, DK Stoecker. Specie-Specific effect of diatom-produced cytotoxic secondary metabolites on microzooplankton growth rates. ASLO Aquatic Science Meeting, Granada, Spain.

2013 Franzè G., PJ Lavrentyev, R. Conley, J. Putland, K. Young, W. Williams, J. Nelson. Microzooplankton distribution and trophic interactions with bacteria, phytoplankton, and planktonic copepods in the Beaufort Gyre. ASLO Aquatic Science Meeting, New Orleans, Louisiana USA.

2013 Lavrentyev PJ, G. Franzè et al. "Microzooplankton role in the warming Arctic: a cross-system comparison". ASLO Aquatic Science Meeting, New Orleans, Louisiana USA.

2012 Franzè G. and PJ Lavrentyev. Microzooplankton growth and herbivory impact in the Barents Sea. ICES, Bergen, Norway.

2012 Lavrentyev PJ, G. Franzè et al .. Carbon flux through the microbial food web in the Barents Sea and the Beaufort Gyre. ICES, Bergen, Norway.

2012 Franzè G. and PJ Lavrentyev. Microzooplankton growth and herbivory patterns across a temperature gradient in the Barents. Ocean Sciences Meeting, Salt Lake City, Utah USA.

2012 Lavrentyev PJ, G. Franzè et al .. Carbon flux through the microbial food web in the Barents Sea. Ocean Sciences Meeting, Salt Lake City, Utah USA.

2012 Frank E., RJ Duff, PJ Lavrentyev, Franzè G., FB Moore, EB Sherr, BF Sherr, Towards estimating the pan-arctic diversity of eukaryotic microbial plankton. Ocean Sciences Meeting, Salt Lake City, Utah USA.

2011 Lavrentyev PJ, G. Franzè, K. Solovyev. Microzooplankton trophic interaction with phytoplankton and planktonic copepods in the ice-covered and open waters of the Barents Sea. ASLO Aquatic Science Meeting, San Juan, Puerto Rico.

2009 Modigh M. and G. Franzè. Shifts and persistence in tintinnid assemblages in the Tyrrhenian Sea. 19th to 21 century records Open Science Conference-Diversitas, Cape Town, South Africa.

2009 Franzè G. and M. Modigh. Predation within the microzooplankton-experimental evidence in the Gulf of Naples, Italy. ASLO Aquatic Science Meeting, Nice, France.

2007 Franzè G. Interfacial trophy and cannibalism in microzoplankton. 3 ° Incontro Annuale Dottorandi in Ecologia degli Ecosistemi Acquatici SItE-AIOL. Lecce, Italy.

2006 Franzè G., I. Santarpia, O. Mangoni, M. Modigh. Impact of the microzooplancton on the composition of the phytoplancton in the Gulf of Naples. XVII Congresso dell'Associazione Italiana di Oceanologia e Limnologia. Napoli, Italy

Manuscript reviewer for:

Marine Ecology Progress Series Marine Ecology, Scientific Report, Progress in Oceanography, Oceanography and Limnology, Advances in Oceanography and Limnology.

Membership in professional societies

Association for the Science of Limnology and Oceanography; American Geophysical Union.

Technical Laboratory

Light microscopy, Epifluorescence microscopy, Flow Cytometry (Guava; Partec Cyflow SL) FlowCAM, Spectrophotometry, High Performance Liquid Chromatography, Cell culture techniques, Chemical analysis (collection and extraction of polyunsaturated aldehydes), basic molecular biology methodology (DNA extraction, PCR, DNA sequencing), Plankton collection sampling techniques.

Languages

Italian (Mather Tongue), English (Fluent), Norwegian (Beginner), Spanish (Scholastic).