[All-postdocs] Biology Seminar this week: Dylan Catlett, WHOI Postdoc

[Margot McKlveen]

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*Biology Department Virtual Seminar*

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Thursday, December 7, at Noon

Zoom link: https://whoi-edu.zoom.us/j/95046496755 
<https://whoi-edu.zoom.us/j/95046496755>


Dylan Catlett, WHOI Postdoc Investigator


Phytoplankton community determinations and dynamics in the Santa Barbara 
Channel, California

Phytoplankton community composition determines the fate(s) of 
phytoplankton production in the ocean, necessitating an improved 
understanding of large-scale phytoplankton community variations. Here, I 
present results from my PhD research where I integrated large 
bio-optical, biomarker pigment, and DNA meta-barcoding data sets to 
characterize phytoplankton community composition (PCC) and determine the 
dominant oceanographic and climate forcings of PCC variability in the 
Santa Barbara Channel, CA (SBC). I develop a novel bio-optical modeling 
approach to retrieve phytoplankton “pigment communities,” a proxy for 
PCC, from hyperspectral bio-optical observations. The models are applied 
to an archive of bio-optical observations to double the size of an 
existing phytoplankton biomarker pigment time series and assess the 
oceanographic and climate forcings of PCC in the SBC, leading to the 
development of a hypothesis that links decadal dinoflagellate blooms to 
decadal climate forcings and variability in regional circulation 
patterns. Integrating DNA meta-barcoding with pigment observations 
refines our proposed phytoplankton pigment community framework and 
suggests integrating high-throughput PCC methods can provide novel 
insights into the physiology and ecology of phytoplankton groups. 
Finally, I preview some preliminary results from my time at WHOI so far 
integrating large plankton image and DNA sequencing data sets to 
understand diatom-parasite interactions in the coastal ocean.


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Meeting ID: 950 4649 6755

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-- 
Margot McKlveen | she/her
Senior Administrative Assistant
Woods Hole Oceanographic Institution
Redfield Building Room 305 | MS 32
266 Woods Hole Rd.
Woods Hole, MA 02543
508-289-2334
mmcklveen at whoi.edu
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