Extreme stoichiometric gradients and B-vitamin effects on phytoplankton communities.

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dc.contributor.advisorScott, J. Thad (Jefferson Thad)
dc.creatorBarnard, Malcolm A., 1996-
dc.creator.orcid0000-0003-4192-574X
dc.date.accessioned2024-09-13T13:23:25Z
dc.date.available2024-09-13T13:23:25Z
dc.date.created2024-05
dc.date.issued2024-05
dc.date.submittedMay 2024
dc.date.updated2024-09-13T13:23:26Z
dc.description.abstractEutrophication of natural waters is a major environmental detriment, leading to increased occurrence of harmful algal blooms and harmful cyanobacterial blooms. In addition to the nutrients nitrogen and phosphorous, micronutrients such as B vitamins can drive phytoplankton growth. To better understand the complex interactions between nutrient stoichiometry and B vitamin biogeochemistry in phytoplankton communities, a B vitamin bottle bioassay experiment was conducted in subsequent years with samples from a long-term shallow-lake mesocosm experiment set up with an extreme nutrient stoichiometry gradient. Vitamin additions did not have a significant effect on the phytoplankton community or their nutrient stoichiometry but halting N additions to shallow-lake mesocosms in 2023 led to an increase in community fraction and photosynthetic efficiency of green algae. The legacy of nutrient supply played a major role in the phytoplankton community and continued nutrient stoichiometry. Therefore, it is important to evaluate present and legacy loading in evaluating eutrophic systems.
dc.format.mimetypeapplication/pdf
dc.identifier.uri
dc.identifier.urihttps://hdl.handle.net/2104/13044
dc.language.isoEnglish
dc.rights.accessrightsNo access – contact librarywebmaster@baylor.edu
dc.titleExtreme stoichiometric gradients and B-vitamin effects on phytoplankton communities.
dc.typeThesis
dc.type.materialtext
local.embargo.lift2026-05-01
local.embargo.terms2026-05-01
thesis.degree.departmentBaylor University. Dept. of Biology.
thesis.degree.departmentBaylor University. Dept. of Biology.
thesis.degree.grantorBaylor University
thesis.degree.nameM.S.
thesis.degree.programBiology
thesis.degree.schoolBaylor University

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