Gayantonia Franze
Curriculum Vitae
I am a Marine Plankton Ecologist. My research interests focus on the role of microbial food webs in the structure and function of marine ecosystems, and their response to climate and human influence. Through a combination of laboratory and fieldwork, I investigated the effects of natural and anthropogenic stressors on microbial physiology, community structure and function, and trophic interactions in several aquatic ecosystems. Due to the central role protists have in in the cycling and transfer of matter and energy, even small changes in their physiological rates and trophic interactions can significantly affect biogeochemical cycles, ecosystem function and biodiversity.
As a seagoing oceanographer I have participated in and planned numerous expeditions ranging from daily to monthly. I’ve gained experience in managing research projects throughout their lifecycle both in the laboratory and in the field. I designed, planned, and executed experimental procedures to measure microzooplankton physiological rates and their trophic and ecological interactions with prey and predators. I have comprehensive knowledge of laboratory analysis, including traditional light and epifluorescence microscopy, FlowCam, FlowCytometry, chemical extractions, and basic molecular techniques to unravel the complex dynamics characterising microbial food webs. I conducted analysis, elaboration, and interpretation of data to produce report compilation and public delivery in peer-reviewed journals, national and international conferences, and outreach events.
As a seagoing oceanographer I have participated in and planned numerous expeditions ranging from daily to monthly. I’ve gained experience in managing research projects throughout their lifecycle both in the laboratory and in the field. I designed, planned, and executed experimental procedures to measure microzooplankton physiological rates and their trophic and ecological interactions with prey and predators. I have comprehensive knowledge of laboratory analysis, including traditional light and epifluorescence microscopy, FlowCam, FlowCytometry, chemical extractions, and basic molecular techniques to unravel the complex dynamics characterising microbial food webs. I conducted analysis, elaboration, and interpretation of data to produce report compilation and public delivery in peer-reviewed journals, national and international conferences, and outreach events.
Publikasjoner
Faglige foredrag
2020
Plankton population dynamics and food web structure on the Northeast US Shelf (NES-LTER): early indication of seasonal shifts in production regimes
Ocean SCience Meeting, San Diego USA
2020
Diverse herbivorous protists show common response in growth-temperature dependency
Ocean Science Meeting, San Diego
2019
Winners and losers in a changing tide: temperature- nutrient impact on phytoplankton community dynamics.
ASLO Aquatic Science Meeting, San Juan, Puerto Rico.
(Ja)
2019
Effects of turbulence on microzooplankton growth and grazing.
ASLO Aquatic Science Meeting, San Juan, Puerto Rico.
(Ja)
2019
The influence of mixed-layer light variability on plankton population dynamics.
ASLO Aquatic Science Meeting, San Juan, Puerto Rico.
(Ja)
2018
Comparison of the functional response of Acartia tonsa to PUA-producing and non-producing strains of the diatom Skeletonema marinoi.
Ocean Science Meeting-AGU, Portland, Oregon, USA
(Ja)
2018
Direct and indirect effects of temperature and nutrients on plankton community dynamics.
Ocean Science Meeting-AGU, Portland, Oregon, USA
(Ja)
2017
When the going get’s tough: evaluating herbivore behavior and population dynamics under sub-optimal conditions.
ASLO Aquatic Sciences Meeting, Honolulu, HI.
(Ja)
2016
Taxa-specific effects of polyunsaturated aldehydes in micro- and meso-zooplankton alter food web dynamics.
ICES/PICES 6th zooplankton production symposium, Bergen, Norway.
(Ja)
2012
Carbon flux through the microbial food web in the Barents Sea and the Beaufort Gyre.
ICES, Bergen, Norway.
(Ja)
2012
Microzooplankton growth and herbivory impact in the Barents Sea
ICES, Bergen, Norway.
(Ja)
2007
Interazioni trofiche e cannibalismo nel microzooplankton
3° Incontro Annuale Dottorandi in Ecologia degli Ecosistemi Acquatici SItE-AIOL. Lecce, Italy.
(Ja)
2006
Impatto del microzooplancton sulla composizione del fitoplancton nel Golfo di Napoli
XVII Congresso dell’Associazione Italiana di Oceanologia e Limnologia. Napoli, Italy
(Ja)
Vitenskapelige artikler (NVI)
2020
Common temperature-growth dependency and acclimation response in three herbivorous protists
Marine Ecology Progress Series
634
(Ja)
p. 1-13
2019
Storm-induced predator-prey decoupling promotes springtime accumulation of north atlantic phytoplankton
Frontiers in Marine Science
6:608
(Ja)
p. 1-12
Kapitler og bøker
2010
Microzooplancton
2010
Metodo delle diluizioni per la stima della predazione del microzooplancton (e del nanoplancton eterotrofo)
2010
Microzooplancton
Metodologie di studio del plankton marino
Chapter 41
(Ja)
p. 477-487
2010
Metodo delle diluizioni per la stima della predazione del microzooplancton (e del nanoplancton eterotrofo)
Metodologie di studio del plankton marino
Chapter 45
(Ja)
p. 525-534
Poster
2019
Thermal diversity in a coastal marine synechococcus community selected under low- and high-temperatures.
ASLO Aquatic Science Meeting, San Juan, Puerto Rico.
(Ja)
2017
Temperature dependence of the heterotrophic protists Oxyrrhis marina.
RI NSF EPSCoR 2017 Annual Research Symposium, Providence, RI
(Ja)
2016
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-AGU, New Orleans, Louisiana USA.
(Ja)
2016
he diatom-produced polyunsaturated aldehydes can induce trophic cascades in the planktonic food web in productive coastal waters.
Ocean Science Meeting-AGU, New Orleans, Louisiana USA.
(Ja)
2015
Specie-Specific effect of diatom- produced cytotoxic secondary metabolites on microzooplankton growth rates.
ASLO Aquatic Science Meeting, Granada, Spain.
(Ja)
2013
Microzooplankton role in the warming Arctic: a cross- system comparison
ASLO Aquatic Science Meeting, New Orleans, Louisiana USA.
(Ja)
2013
Microzooplankton distribution and trophic interactions with bacteria, phytoplankton, and planktonic copepods in the Beaufort Gyre.
ASLO Aquatic Science Meeting, New Orleans, Louisiana USA.
(Ja)
2012
Towards estimating the pan-arctic diversity of eukaryotic microbial plankton.
Ocean Sciences Meeting-AGU, Salt Lake City, Utah USA.
(Ja)
2012
Carbon flux through the microbial food web in the Barents Sea.
Ocean Sciences Meeting-AGU, Salt Lake City, Utah USA.
(Ja)
2012
Microzooplankton growth and herbivory patterns across a temperature gradient in the Barents.
Ocean Sciences Meeting, Salt Lake City, Utah USA.
(Ja)
2011
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.
(Ja)
2009
Predation within the microzooplankton: experimental evidence in the Gulf of Naples, Italy
ASLO Aquatic Science Meeting, Nice, France.
(Ja)
2009
Shifts and persistence in tintinnid assemblages in the Tyrrhenian Sea.
19th to 21 century records Open Science Conference-Diversitas, Cape Town, South Africa.
(Ja)
Populærvitenskapelige artikler
2020
Light fluctuations are key in modulating plankton trophic dynamics and their impact on primary production
Limnology and Oceanography Letters
(Ja)
2020
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
(Ja)
p. 254
2019
Microzooplankton Distribution and Dynamics in the Eastern Fram Strait and the Arctic Ocean in May and August 2014
Frontiers in Marine Science
6:264
(Ja)
2019
Zooplankton communities associated with new and regenerated primary production in the Atlantic inflow north of Svalbard
Frontiers in Marine Science
6
(Ja)
2019
Food web functions and interactions during spring and summer in the arctic water inflow region: Investigated through inverse modeling
Frontiers in Marine Science
6
(Ja)
2018
Herbivorous protist growth and grazing rates at in situ and artificially elevated temperatures during an Arctic phytoplankton spring bloom
PeerJ
2018
Diatom-produced allelochemicals trigger trophic cascades in the planktonic food web
Limnology and Oceanography
2018
Herbivorous protist growth and grazing rates at in situ and artificially elevated temperatures during an Arctic phytoplankton spring bloom
PeerJ
6:e5264
(Ja)
2018
Diatom-produced allelochemicals trigger trophic cascades in the planktonic food web.
Limnology and Oceanography
63
(Ja)
p. 1093-1108
2017
Microbial food web structure and dynamics across a natural temperature gradient in a productive polar shelf system
Marine Ecology Progress Series
2017
Microbial food web structure and dynamics across a natural temperature gradient in a productive polar shelf system
Marine Ecology progress Series
569
(Ja)
p. 89-102
2015
The Effect of Dissolved Polyunsaturated Aldehydes on Microzooplankton Growth Rates in the Chesapeake Bay and Atlantic Coastal Waters
Marine Drugs
2015
The Effect of Dissolved Polyunsaturated Aldehydes on Microzooplankton Growth Rates in the Chesapeake Bay and Atlantic Coastal Water.
Marine Drugs
13 (5)
(Ja)
p. 2834-2856
2014
The green–blue swing: plasticity of plankton food-webs in response to coastal oceanographic dynamics
Marine Ecology
2014
Microzooplankton Growth Rates Examined across a Temperature Gradient in the Barents Sea
PLOS ONE
2014
Microzooplankton distribution, dynamics, and trophic interactions relative to phytoplankton and quagga mussels in Saginaw Bay, Lake Huron
Journal of Great Lakes research
2014
Microzooplankton distribution, dynamics, and trophic interactions relative to phytoplankton and quagga mussels in Saginaw Bay, Lake Huron
Journal of Great Lakes Reserach
40
(Ja)
p. 95-105
2014
Microzooplankton growth rates examined across a temperature gradient in the Barents Sea
PloSOne
9 (1)
(Ja)
p. e86429
2014
The green–blue swing: plasticity of plankton food-webs in response to coastal oceanographic dynamics
Marine Ecology
36(4)
(Ja)
p. 1155-1170
2013
Experimental evidence for internal predation in microzooplankton communities
Marine Biology
2013
Experimental evidence for internal predation in microzooplankton communities
Marine Biology
160 (12)
(Ja)
p. 3103-3112
2009
Changes in phytoplankton and microzooplankton populations during grazing experiments at a Mediterranean coastal site
Journal of Plankton Research
2009
Changes in phytoplankton and microzooplankton populations during grazing experiments at a Mediterranean coastal site
Journal of Plankton Reserach
31 (8)
(Ja)
p. 853-864
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