Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Publication
- Publication Type
Articles 1 - 3 of 3
Full-Text Articles in Microbiology
Investigating Drivers Of Algal Bloom Succession In Lake Erie, Brittany Zepernick
Investigating Drivers Of Algal Bloom Succession In Lake Erie, Brittany Zepernick
Doctoral Dissertations
Harmful Algal Blooms (HABs) are algae undergoing prolific, unregulated growth. A well-documented HAB taxa is the cyanobacterium Microcystis spp., which induces anthropogenic, ecological, and economic consequences due to the production of toxins and biomass which results in lake hypoxia. Microcystis spp. blooms are globally distributed in freshwater systems, with climate change and the aquatic continuum serving to further exacerbate bloom distribution, duration, and frequency. Thus, there is a need to elucidate the factors driving the ecological success of Microcystis spp., and the ecological “failures” of their competitors, such as diatoms. In Lake Erie, a seasonal pattern of algal bloom succession …
Cattle Access Affects Periphyton Community Structure In Tennessee Farm Ponds., Robert Gerald Middleton
Cattle Access Affects Periphyton Community Structure In Tennessee Farm Ponds., Robert Gerald Middleton
Masters Theses
Cattle farming is vital to the economy of the United States. Frequently, cattle are given access to ponds and streams for water. The relative impacts of cattle access in natural water sources on the periphyton community have been rarely investigated. Periphyton is the basis of the aquatic food web, and community composition can serve as a bioindicator of pollution. Thus, my objectives were to quantify the effects of cattle access in aquatic lentic systems on periphyton community structure and biovolume, identify taxa that were associated with cattle access, and identify abiotic mechanisms that might be driving assemblage changes. I conducted …
The Effects Of Increased Pco2 And Temperature On The North Atlantic Spring Bloom: I. The Phytoplankton Community And Biogeochemical Response, Y. Feng, C.E. Hare, K. Leblanc, J.M. Rose, Y Zhang, G.R. Ditullio, P. Lee, Steven Wilhelm, J.M. Rowe, J. Sun, N. Nemcek, C. Gueguen, U. Passow, I. Benner, C. Brown, D.A. Hutchins
The Effects Of Increased Pco2 And Temperature On The North Atlantic Spring Bloom: I. The Phytoplankton Community And Biogeochemical Response, Y. Feng, C.E. Hare, K. Leblanc, J.M. Rose, Y Zhang, G.R. Ditullio, P. Lee, Steven Wilhelm, J.M. Rowe, J. Sun, N. Nemcek, C. Gueguen, U. Passow, I. Benner, C. Brown, D.A. Hutchins
Microbiology Publications and Other Works
ABSTRACT: The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups. To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period. Four treatments were examined: (1) 12°C and 390 ppm CO2 (ambient control), (2) 12°C and 690 ppm CO2 (high pCO2), (3) 16°C and 390 ppm CO2 (high temperature), and (4) 16°C and …