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Characterizing bacterial antibiotic resistance, prevalence, and persistence in the marine environment
(Massachusetts Institute of Technology, 2019)
Antibiotics are naturally occurring chemicals in bacteria that were recently discovered and utilized by humans. Despite a relatively short time of use, anthropogenic use of antibiotics has increased natural levels of ...
Physiological and behavioral responses, and their variability, in squid, Doryteuthis pealeii, embryos and paralarvae reared under chronic ocean acidification
(Massachusetts Institute of Technology, 2019)
Ocean acidification (OA) and related stressors, like warming, are occurring rapidly in coastal systems. There is concern about the impacts these stressors may have on the early development of species that use the nearshore ...
Impacts of developmental exposures to the harmful algal bloom toxin domoic acid on neural development and behavior
(Massachusetts Institute of Technology, 2019)
Harmful algal blooms (HABs) can produce potent neurotoxins that accumulate in seafood and affect human health. One HAB toxin of concern is domoic acid (DomA), a glutamate analog produced by the marine diatom Pseudo-nitzschia ...
Characterizing the ecology of coral reef microorganisms across different scales within the Caribbean
(Massachusetts Institute of Technology, 2020)
Microorganisms sustain the high productivity of coral reefs and support one of the most diverse, valuable, and threatened ecosystems on Earth. Despite the importance of reef microorganisms, there is a lack of understanding ...
Productivity, metabolism and physiology of free-living Chemoautotrophic Epsilonproteobacteria
(Massachusetts Institute of Technology, 2016)
Chemoautotrophic ecosystems at deep-sea hydrothermal vents were discovered in 1977, but not until 1995 were free-living autotrophic Epsilonproteobacteria identified as important microbial community members. Because the ...
Coral reef soundscapes: spatiotemporal variability and links to species assemblages
(Massachusetts Institute of Technology, 2017)
Coral reefs are biodiverse ecosystems that are at risk of degradation as a result of environmental changes. Reefs are constantly in a state of flux: the resident species assemblages vary considerably in space and time. ...
Alexandrium catenella cyst dynamics in a coastal embayment : temperature dependence of dormancy, germination, and bloom initiation
(Massachusetts Institute of Technology, 2017)
Blooms of the dinoflagellate Alexandrium catenella cause paralytic shellfish poisoning syndrome and present an expanding public health threat. They are inoculated through the germination of benthic cysts, a process regulated ...
Optimal bioeconomic management of changing marine resources
(Massachusetts Institute of Technology, 2016)
Marine populations are increasingly subjected to changing conditions whether through harvest or through broad-scale habitat change. Historically, few models have accounted for such trends over time, and even fewer have ...
Population dynamics and diversity of Synechococcus on the New England shelf
(Massachusetts Institute of Technology, 2014)
Synechococcus is a ubiquitous marine primary producer. Our understanding of the factors that determine its abundance has been limited by available observational tools, which have not been able to resolve population dynamics ...
The choreography of belonging : toothed whale spatial cohesion and acoustic communication
(Massachusetts Institute of Technology, 2016)
To maintain the benefits of group membership, social animals need mechanisms to stay together and reunite if separated. This thesis explores the acoustic signals that dolphins use to overcome this challenge and mediate ...