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Monday, October 4, 2021
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12:00 PM
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1:30 PM
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Walk-in Study Abroad Advising
- Location: International Programs Office LARTS 016
- Contact: International Programs Office
- Description: Have a quick question for a study abroad advisor? Would you like to start planning your study abroad experience? Drop by the IPO (LARTS 016) between Noon and 1:30. Students will be seen on a first-come, first-served basis.
- Topical Areas: Faculty, Staff and Administrators, Students, University Community, Study Abroad
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12:00 PM
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1:00 PM
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Department of Estuarine and Ocean Sciences MS Thesis Defense - by Ryan Nuttall
- Location: > See description for location
- Contact: > See Description for contact information
- Description: The School for Marine Science and Technology
Department of Estuarine and Ocean Sciences
MS Thesis Defense
"Vibrio cyclitrophicus population - specific biofilm formation and association with marine copepods"
By
Ryan Nuttal
Advisor:
Dr. Pia Moisander (University of Massachusetts Dartmouth)
Committee:
Dr. Erin Bromage (University of Massachusetts Dartmouth)
Dr. Mark Silby (University of Massachusetts Dartmouth)
Dr. Spencer Nyholm (University of Connecticut)
Monday, October 4, 2021
12:00 pm to 1:00 pm
UMass Dartmouth Campus, Room TEX-102
285 Old Westport Road, Dartmouth, MA
and via Zoom
Abstract: Vibrio spp. form a part of the microbiome of the highly abundant marine mesozooplankton termed copepods. The tendency of Vibrio to associate with copepods has been linked to transmission of cholera, and several Vibrio species cause disease through associations with marine macroinvertebrates and finfish which may use copepods as a food source. The biological mechanisms of the Vibrio-copepod association are largely unknown. The aims of this thesis were to: 1) compare biofilm formation of Vibrio isolated from copepods and closely related Vibrio originating from seawater, 2) visualize the attachment of Vibrio on live copepods and dead particles, and 3) investigate growth of Vibrio on live copepods. Two strain types of V. cyclitrophicus were studied that are separated by small genomic differences in biofilm formation loci. Two ‘L-strains’ were isolated from copepods and two ‘S-strains’ were included that originated from seawater.
It was expected that the L-strains would have a superior biofilm formation capacity, but in biofilm assays developed in this study, L- and S-strains formed similar biofilms in the presence of all sea salts, irrespective of carbon source, suggesting previously undescribed biofilm mechanisms are present in the S-strains. Calcium promoted biofilm formation and resulted in substantially denser biofilms in the L-strains, suggesting regulation of the pilus or polysaccharide pathways present in the L- but not in the S-strains. Calcium regulation may be important for colonization of shellfish by V. cyclitrophicus and other Vibrio spp. Colonization of Vibrio on Acartia tonsa copepods was observed by generating Green Fluorescent Protein -expressing strains and visualizing and quantifying attachment with fluorescence microscopy. Cells tended to localize on the antennae of live copepods, suggesting that vortices generated by animal movement and feeding promote bacterial attachment. L-strains attached to copepods at significantly higher numbers than the S-strains, suggesting that biofilms of L-strains are better at withstanding shear, or that these strains are more effective at evading the host’s immune responses. The data also demonstrate that V. cyclitrophicus cells grow epibiotically on live copepods after attachment, indicating that copepods can both selectively recruit and sustain Vibrio growth.
This study provides information about the complex biological mechanisms underlying the Vibrio association with marine zooplankton and particles and elucidates the V. cyclitrophicus metapopulation ecology. The V. cyclitrophicus – A. tonsa model used here could be useful in future studies on Vibrio-invertebrate associations.
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Zoom Link: https://umassd.zoom.us/j/92541790588?pwd=WVIyb0tjcm1wM3U0S0ttSEEvdk9BZz09
Meeting ID: 925 4179 0588; Passcode: 201991
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For addtional information, please contact Sue Silva at s1silva@umassd.edu
- Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series
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9/22
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10/23
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AMANDA MEANS: LIGHT YEARS
- Location: > See description for location
- Contact: > See Description for contact information
- Description: University of Massachusetts Dartmouth is delighted to host a career survey of the work of renowned U.S. artist Amanda Means at the University Art Gallery in Star Store Campus, Downtown New Bedford.
For over forty years, Amanda Means has created a body of work that has pushed the boundaries of the photographic medium with her celebrated Leaf, Flower, Water Glass, and Light Bulb series of images. Means has been a darkroom innovator throughout her career: adapting a 19th century camera for use as an enlarger, photographing objects without the use of negatives, working with a large-format Polaroid camera, and creating a series of remarkable abstracts working only with light and photographic materials. The artist's darkroom alchemy was cited by the Guggenheim Foundation in awarding Means their prestigious Fellowship in 2017 for her contribution to contemporary photography.
Our survey exhibition, Means' first retrospective, includes examples of work from all phases of her career. Alongside key pieces from her color Polaroid Light Bulb and silver gelatin Water Glass works, we are excited to be showing some of the artist's early prints and works on paper, as well as important examples of her black and white Flower and Light Bulb works. This affords a unique opportunity to view Means' most celebrated images in the broader context of her overall practice.
Amanda Means is a graduate of Cornell University and SUNY Buffalo, and is a 2017 Guggenheim Fellow, awarded for her contribution to contemporary photography. She has exhibited widely in the U.S. and abroad, and her work is included in numerous collections including the Whitney Museum of American Art; the San Francisco Museum of Modern Art; the Los Angeles County Museum of Art; the Museum of Fine Arts in Boston; the MIT List Visual Arts Center; the Albright-Knox Art Gallery, Buffalo, N.Y.; and the Nicola Erni Collection, Switzerland. The artist is represented by JHB Gallery, New York, and lives and works in Beacon, New York.
University Art Gallery
UMass Dartmouth College of Visual and Performing Arts
Star Store Campus
715 Purchase Street
New Bedford, MA 02740
Facebook and Instagram: @UMassDartmouthGalleries
www.umassd.edu/cvpa/universityartgallery
Contact: Viera Levitt, Gallery Director
gallery@umassd.edu
(508) 999-8555
Gallery Hours: Mon-Fri 9 am – 6 pm.
Free and open to the public
- Topical Areas: General Public, College of Visual and Performing Arts, Exhibits
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7:00 PM
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7:30 PM
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MONDAY NIGHT CLASS - Meditation Discussion
- Location: > See description for location
- Cost: 0
- Contact: > See Description for contact information
- Description: Are you a meditator or curious about meditation? Have questions or experiences to discuss? Want to hear about other people's experiences? MONDAY NIGHT CLASS may be for you!
ALL FORMS of yoga, meditation, mindfulness and contemplative practice can provide serious health benefits. Regular practice is needed but can be difficult without a support group.
MONDAY NIGHT CLASS is a WEEKLY ONLINE SALON-style meeting for discussion of contemplative practice. It's free and open to all. The "SALON" concept refers to people gathering for lively informal conversation, often on literary and philosophical topics.
BEGINNING September 27, we'll meet ONLINE every Monday, from 7:00-8:30pm
For info contact Jerry Solfvin, PhD, at JSOLFVIN@UMASSD.EDU
FREE & OPEN TO ALL. Register in advance at:
https://umassd.zoom.us/meeting/register/tJUpc-muqTsiHdHYkvFounmHQy86Xtxpsykk
- Link: https://www.umassd.edu/programs/indic-studies/
- Topical Areas: Alumni, Faculty, General Public, Students, Students, Graduate, Students, Law, Students, Undergraduate, University Community, Aging and Health Studies, College of Arts and Sciences, Indic Studies, Judaic Studies, Philosophy, Psychology, Religious Studies, Health Services, Center for Indic Studies, Center for Jewish Culture, Center for Religious and Spiritual Life, Student Affairs
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9/22
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10/23
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AMANDA MEANS: LIGHT YEARS
- Location: > See description for location
- Contact: > See Description for contact information
- Description: University of Massachusetts Dartmouth is delighted to host a career survey of the work of renowned U.S. artist Amanda Means at the University Art Gallery in Star Store Campus, Downtown New Bedford.
For over forty years, Amanda Means has created a body of work that has pushed the boundaries of the photographic medium with her celebrated Leaf, Flower, Water Glass, and Light Bulb series of images. Means has been a darkroom innovator throughout her career: adapting a 19th century camera for use as an enlarger, photographing objects without the use of negatives, working with a large-format Polaroid camera, and creating a series of remarkable abstracts working only with light and photographic materials. The artist's darkroom alchemy was cited by the Guggenheim Foundation in awarding Means their prestigious Fellowship in 2017 for her contribution to contemporary photography.
Our survey exhibition, Means' first retrospective, includes examples of work from all phases of her career. Alongside key pieces from her color Polaroid Light Bulb and silver gelatin Water Glass works, we are excited to be showing some of the artist's early prints and works on paper, as well as important examples of her black and white Flower and Light Bulb works. This affords a unique opportunity to view Means' most celebrated images in the broader context of her overall practice.
Amanda Means is a graduate of Cornell University and SUNY Buffalo, and is a 2017 Guggenheim Fellow, awarded for her contribution to contemporary photography. She has exhibited widely in the U.S. and abroad, and her work is included in numerous collections including the Whitney Museum of American Art; the San Francisco Museum of Modern Art; the Los Angeles County Museum of Art; the Museum of Fine Arts in Boston; the MIT List Visual Arts Center; the Albright-Knox Art Gallery, Buffalo, N.Y.; and the Nicola Erni Collection, Switzerland. The artist is represented by JHB Gallery, New York, and lives and works in Beacon, New York.
University Art Gallery
UMass Dartmouth College of Visual and Performing Arts
Star Store Campus
715 Purchase Street
New Bedford, MA 02740
Facebook and Instagram: @UMassDartmouthGalleries
www.umassd.edu/cvpa/universityartgallery
Contact: Viera Levitt, Gallery Director
gallery@umassd.edu
(508) 999-8555
Gallery Hours: Mon-Fri 9 am – 6 pm.
Free and open to the public
- Topical Areas: General Public, College of Visual and Performing Arts, Exhibits
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