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Effects of low bioavailable nitrogen and phosphorus on cyanobacteria dynamics in eutrophic Lake Erie
Table of Contents
Abstract
Acknowledgements
Table of Contents
List of Tables
List of Figures
1 Has the Phosphorus Paradigm Eroded? Possible Insights from Western Lake Erie
1.1 The Phosphorus Paradigm
1.2 Lake Erie can Provide Insights to the Nitrogen Question
1.3 Goals and Hypothesizes of this Dissertation
1.4 Chapter 1 Tables
1.5 Chapter 1 Figures
2 Nitrogen Constrains Late Summer Cyanobacterial Blooms in the Western Basin of Lake Erie
2.1 Summary
2.2 Introduction
2.3 Methods
2.3.1 Field Methods
2.3.2 Nutrient Analysis
2.3.3 Cyanobacteria Biovolume
2.3.4 Bioassays
2.3.5 Data Analysis
2.4 Results
2.4.1 Nutrient Concentrations
2.4.2 Bioassays
2.4.3 FluoroProbe vs. Extracted Chl and PC.
2.4.4 Cyanobacteria Biovolume
2.4.5 Cyanobacteria Nutrient Quota
2.5 Discussion
2.6 Chapter 2 Acknowledgements
2.7 Chapter 2 Tables
2.8 Chapter 2 Figures
3 Dynamics of Nitrogen, Phosphorus, and Cyanobacteria in Lake Erie during a large bloom year
3.1 Summary
3.2 Introduction
3.3 Methods
3.3.1 Sample collection
3.3.2 Laboratory methods
3.3.3 Data analysis
3.4 Results
3.4.1 Nutrient Concentrations
3.4.2 Chlorophyll a
3.4.3 Cyanobacteria biovolume
3.4.4 Microcystin
3.5 Discussion
3.5.1 Trends in N and P
3.5.2 Cyanobacteria biovolume
3.5.3 Microcystin
3.5.4 Insights Regarding the Need to Regulate N
3.6 Chapter 3 Acknowledgements
3.7 Chapter 3 Tables
3.8 Chapter 3 Figures
4 Connecting the Blooms: Tracking of the Unprecedented Microcystis Bloom of 2011 across Lake Erie using Denaturing Gradient Gel Electrophoresis
4.1 Summary
4.2 Introduction
4.3 Methods
4.3.1 Sample Collection
4.3.2 Molecular Methods
4.3.3 Image Analysis
4.4 Results and Discussion
4.4.1 Among Bloom Comparison
4.4.2 Source Populations
4.5 Conclusion
4.7 Chapter 4 Acknowledgements
4.8 Chapter 4 Figures
5 Can Nitrogen-Limitation be Induced in the Eutrophic Maumee Bay, Lake Erie?
5.1 Summary
5.2 Introduction
5.3 Methods
5.4 Results
5.5 Discussion
5.6 Chapter 5 Acknowledgements
5.7 Chapter 5 Tables
5.8 Chapter 5 Figures
6 Utilization of various nitrogen compounds by nitrogen-stressed cyanobacteria blooms
6.1 Summary
6.2 Introduction
6.3 Site Descriptions
6.4 Methods
6.4.1 Field methods
6.4.2 Nutrient and Chlorophyll Analysis
6.4.3 Monod Growth Experiments
6.4.4 15N Assimilation Preference Experiment
6.4.5 Co-limitation by Metal Cofactors
6.5 Results
6.5.1 Lake Properties
6.5.2 N Enrichment Growth
6.5.3 15N Assimilation
6.6 Discussion
6.7 Chapter 6 Acknowledgements
6.8 Chapter 6 Tables
6.9 Chapter 6 Figures
7 The Lake Erie Nutrient Experiment: Insights on Dual Nutrient Management Strategy
7.1 Summary
7.2 Introduction
7.3 Methods
7.3.1 Western Basin Nutrient Concentration Trends
7.3.2 Nitrate Depletion Rate
7.3.3 Maumee River Nutrient Loading
7.3.4 Microcystis Biovolume
7.4 Results
7.4.1 Trends in N, P, and the N:P Ratio
7.4.2 Nitrate Depletion
7.4.3 Microcystis Biovolume
7.4.4 River Loading and Lake Concentration
7.5 Discussion
7.6 Chapter 7 Acknowledgements
7.7 Chapter 7 Tables
7.8 Chapter 7 Figures
ReferencesBài viết liên quan
