Margaret Mulholland

Margaret Mulholland's AcademicInfluence.com Rankings

Margaret Mulholland

Biology

#15191

World Rank

#19117

Historical Rank

Oceanography

#238

World Rank

#263

Historical Rank

biology Degrees

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Biology

Margaret Mulholland's Degrees

Bachelors Marine Biology University of California, Santa Barbara
Masters Oceanography University of California, San Diego

Why Is Margaret Mulholland Influential?

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According to Wikipedia, Margaret Ruth Mulholland is professor at Old Dominion University known for her work on nutrients in marine and estuarine environments. Education and career Mulholland has a B.S. from the University of Notre Dame , and an M.S. in biological oceanography and an M.M. in marine affairs from the University of Washington. In 1998 she earned her Ph.D. in biological oceanography from the University of Maryland. As of 2022 she is a professor at Old Dominion University.

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Margaret Mulholland's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

CO2 control of Trichodesmium N2 fixation, photosynthesis, growth rates, and elemental ratios: Implications for past, present, and future ocean biogeochemistry (2007) (482)
Potential climate-change impacts on the Chesapeake Bay (2008) (441)
Marine Phytoplankton Temperature versus Growth Responses from Polar to Tropical Waters – Outcome of a Scientific Community-Wide Study (2013) (360)
Database of diazotrophs in global ocean: abundance, biomass and nitrogen fixation rates (2012) (335)
Extensive bloom of a N2-fixing diatom/cyanobacterial association in the tropical Atlantic Ocean (1999) (281)
Nutrient Cycles and Marine Microbes in a CO2-Enriched Ocean (2009) (255)
Nitrogen in the Marine Environment (2006) (228)
Nitrogen fixation and release of fixed nitrogen by Trichodesmium spp. in the Gulf of Mexico (2006) (210)
Dinitrogen fixation and release of ammonium and dissolved organic nitrogen by Trichodesmium IMS101 (2004) (183)
The SouthEast Asian Time-series Study (SEATS) and the biogeochemistry of the South China Sea—An overview (2007) (166)
Peptide hydrolysis, amino acid oxidation, and nitrogen uptake in communities seasonally dominated by Aureococcus anophagefferens (2002) (157)
The fate of nitrogen fixed by diazotrophs in the ocean (2007) (153)
Interactions between changing pCO2, N2 fixation, and Fe limitation in the marine unicellular cyanobacterium Crocosphaera (2008) (148)
Nitrogen Uptake and Assimilation (2008) (131)
Understanding Causes and Impacts of the Dinoflagellate, Cochlodinium polykrikoides, Blooms in the Chesapeake Bay (2009) (123)
The effect of growth rate, phosphorus concentration, and temperature on N2 fixation, carbon fixation, and nitrogen release in continuous cultures of Trichodesmium IMS101 (2005) (108)
Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America (2018) (106)
The nitrogen physiology of the marine N2-fixing cyanobacteria Trichodesmium spp. (2000) (101)
NUTRIENT CONTROLS ON NITROGEN UPTAKE AND METABOLISM BY NATURAL POPULATIONS AND CULTURES OF TRICHODESMIUM (CYANOBACTERIA) (2001) (100)
Rates of dinitrogen fixation and the abundance of diazotrophs in North American coastal waters between Cape Hatteras and Georges Bank (2012) (96)
The role of nitrogenous nutrients in the occurrence of harmful algal blooms caused by Cochlodinium polykrikoides in New York estuaries (USA) (2012) (94)
Reactivity and chemical characterization of effluent organic nitrogen from wastewater treatment plants determined by Fourier transform ion cyclotron resonance mass spectrometry. (2012) (91)
Phosphorus dynamics in cultures and natural populations of Trichodesmium spp. (2002) (91)
Dinitrogen fixation in aphotic oxygenated marine environments (2013) (86)
Nitrogen fixation, uptake and metabolism in natural and cultured populations of Trichodesmium spp. (1999) (83)
Stoichiometry of nitrogen and carbon utilization in cultured populations of Trichodesmium IMS101: Implications for growth (2001) (81)
Satellite captures Trichodesmium blooms in the southwestern tropical Pacific [\textit{Trichodesmium}] (2000) (80)
NITROGEN UTILIZATION AND METABOLISM RELATIVE TO PATTERNS OF N2 FIXATION IN CULTURES OF TRICHODESMIUM NIBB1067 (1999) (78)
Extracellular enzyme activity and uptake of carbon and nitrogen along an estuarine salinity and nutrient gradient (2003) (74)
Effluent organic nitrogen (EON): bioavailability and photochemical and salinity-mediated release. (2010) (72)
Ocean urea fertilization for carbon credits poses high ecological risks. (2008) (72)
Diversity, distribution, and expression of diazotroph nifH genes in oxygen-deficient waters of the Arabian Sea. (2012) (68)
Is dinitrogen fixation significant in the Levantine Basin, East Mediterranean Sea? (2011) (65)
A comparison of N and C uptake during brown tide (Aureococcus anophagefferens) blooms from two coastal bays on the east coast of the USA (2004) (61)
Environmental and Physical Controls on the Formation and Transport of Blooms of the Dinoflagellate Cochlodinium polykrikoides Margalef in the Lower Chesapeake Bay and Its Tributaries (2011) (57)
Springtime contribution of dinitrogen fixation to primary production across the Mediterranean Sea (2013) (53)
Peptide hydrolysis and the uptake of dipeptides by phytoplankton (2009) (52)
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget (2017) (46)
Uncoupling between dinitrogen fixation and primary productivity in the eastern Mediterranean Sea (2013) (46)
Biological nitrogen fixation in the oxygen-minimum region of the eastern tropical North Pacific ocean (2017) (44)
Seasonal variations in dissolved organic carbon concentrations and characteristics in a shallow coastal bay (2006) (44)
A critical review of the 15N2 tracer method to measure diazotrophic production in pelagic ecosystems (2020) (43)
Emergence of Algal Blooms: The Effects of Short-Term Variability in Water Quality on Phytoplankton Abundance, Diversity, and Community Composition in a Tidal Estuary (2014) (41)
Phycoremediation strategies for rapid tertiary nutrient removal in a waste stream (2015) (40)
INTERACTIVE EFFECTS OF IRRADIANCE AND CO2 ON CO2 FIXATION AND N2 FIXATION IN THE DIAZOTROPH TRICHODESMIUM ERYTHRAEUM (CYANOBACTERIA) 1 (2011) (39)
Enzymes and Nitrogen Cycling (2008) (39)
Blooms of Dinoflagellate Mixotrophs in a Lower Chesapeake Bay Tributary: Carbon and Nitrogen Uptake over Diurnal, Seasonal, and Interannual Timescales (2018) (38)
Cyanobacteria and cyanophage contributions to carbon and nitrogen cycling in an oligotrophic oxygen-deficient zone (2019) (38)
High Rates of N2 Fixation in Temperate, Western North Atlantic Coastal Waters Expand the Realm of Marine Diazotrophy (2019) (38)
Scientific Bases for Numerical Chlorophyll Criteria in Chesapeake Bay (2013) (37)
Heterotrophic and autotrophic contribution to dinitrogen fixation in the Gulf of Aqaba (2015) (37)
Effects of nitrogen supply and its composition on the growth of Prorocentrum donghaiense (2012) (37)
Nitrogen uptake and regeneration (ammonium regeneration, nitrification and photoproduction) in waters of the West Florida Shelf prone to blooms of Karenia brevis (2014) (37)
Remote sensing of phytoplankton community composition along the northeast coast of the United States (2011) (36)
Blooms of Karenia brevis (Davis) G. Hansen & Ø. Moestrup on the West Florida Shelf: Nutrient sources and potential management strategies based on a multi-year regional study (2014) (35)
Chromatographic determination of nanomolar cyanate concentrations in estuarine and sea waters by precolumn fluorescence derivatization. (2013) (35)
Potential virus-mediated nitrogen cycling in oxygen-depleted oceanic waters (2020) (34)
The Bioavailability of Effluent-derived Organic Nitrogen along an Estuarine Salinity Gradient (2011) (32)
Comparison of Nutrient and Microbial Dynamics over a Seasonal Cycle in a Mid-Atlantic Coastal Lagoon Prone to Aureococcus anophagefferens (Brown Tide) Blooms (2009) (31)
Controls on the initiation and development of blooms of the dinoflagellate Cochlodinium polykrikoides Margalef in lower Chesapeake Bay and its tributaries (2013) (29)
Nitrogen uptake kinetics in field populations and cultured strains of Karenia brevis. (2014) (28)
Contribution of diazotrophy to nitrogen inputs supporting Karenia brevis blooms in the Gulf of Mexico (2014) (27)
INTENSE GRAZING AND PREY‐DEPENDENT GROWTH OF PFIESTERIA PISCICIDA (DINOPHYCEAE) 1 (2004) (25)
Growth and Nitrogen Uptake Kinetics in Cultured Prorocentrum donghaiense (2014) (25)
Combined effects of CO2 and light on large and small isolates of the unicellular N2-fixing cyanobacterium Crocosphaera watsonii from the western tropical Atlantic Ocean (2013) (25)
Phytoplankton and nutrient dynamics in a tidally dominated eutrophic estuary: daily variability and controls on bloom formation (2014) (24)
The effect of chemical structure on the hydrolysis of tetrapeptides along a river-to-ocean transect: AVFA and SWGA (2010) (24)
Chesapeake Bay Plume Morphology and the Effects on Nutrient Dynamics and Primary Productivity in the Coastal Zone (2009) (22)
Cyanate distribution and uptake above and within the Eastern Tropical South Pacific oxygen deficient zone (2018) (21)
Utilization of urea and cyanate in waters overlying and within the eastern tropical north Pacific oxygen deficient zone (2018) (21)
Distribution, Sources, and Sinks of Cyanate in the Coastal North Atlantic Ocean (2016) (21)
Dinitrogen fixation in the Indian Ocean (2013) (21)
The Gulf of Mexico ECOHAB: Karenia Program 2006–2012 (2014) (20)
Nitrogen uptake and primary productivity rates in the Mid-Atlantic Bight (MAB) (2011) (20)
The Influence of Storms on Water Quality and Phytoplankton Dynamics in the Tidal James River (2016) (19)
Changes in dissolved organic matter characteristics in Chincoteague Bay during a bloom of the pelagophyteAureococcus anophagefferens (2004) (19)
Low rates of dinitrogen fixation in the eastern tropical South Pacific (2019) (17)
Extracellular amino acid oxidation by phytoplankton and cyanobacteria: a cross-ecosystem comparison (1998) (16)
Nitrogen assimilation in picocyanobacteria inhabiting the oxygen‐deficient waters of the eastern tropical North and South Pacific (2019) (16)
Effects of grazer and substrate amendments on nutrient and plankton dynamics in estuarine enclosures (1997) (16)
Dinitrogen Fixation Across Physico‐Chemical Gradients of the Eastern Tropical North Pacific Oxygen Deficient Zone (2019) (15)
Evaluating the Impact of Atmospheric Depositions on Springtime Dinitrogen Fixation in the Cretan Sea (Eastern Mediterranean)—A Mesocosm Approach (2016) (15)
Assessing Phytoplankton Nutritional Status and Potential Impact of Wet Deposition in Seasonally Oligotrophic Waters of the Mid‐Atlantic Bight (2018) (13)
Cyanate distribution and uptake in North Atlantic coastal waters (2017) (12)
The oceanography of the Northern south China Sea Shelf-Sea (NoSoCS) and its adjacent Waters—overview and Highlights (2015) (11)
Influence of daylight surface aggregation behavior on nutrient cycling during a Karenia brevis (Davis) G. Hansen & Ø. Moestrup bloom: migration to the surface as a nutrient acquisition strategy. (2014) (10)
The Effect of Growth Rate , Phosphorus Concentration , and Temperature on N-2 Fixation , Carbon Fixation , and Nitrogen Release in Continuous Cultures of Trichodesmium IMS 101 (2018) (10)
Incorporation of Leucine and Thymidine by Estuarine Phytoplankton: Implications for Bacterial Productivity Estimates (2011) (10)
Enzymes and N Cycling (2008) (10)
Effects of temperature, irradiance and pCO2 on the growth and nitrogen utilization of Prorocentrum donghaiense (2016) (8)
A Major Step in Opening the Black Box of High-Molecular-Weight Dissolved Organic Nitrogen by Isotopic Labeling of Synechococcus and Multibond Two-Dimensional NMR. (2017) (8)
Interannual Variability Influences Brown Tide (Aureococcus anophagefferens) Blooms in CoastalEmbayments (2014) (8)
Genome-resolved viral ecology in a marine oxygen minimum zone (OMZ) (2020) (7)
Nitrogen acquisition by the toxic marine cyanobacterium Lyngbya majuscula from Moreton Bay Australia and Tampa Bay Florida (2004) (7)
Developing a 3D mechanistic model for examining factors contributing to harmful blooms of Margalefidinium polykrikoides in a temperate estuary. (2021) (7)
Genome-resolved viral ecology in a marine oxygen minimum zone (OMZ). (2020) (6)
The SouthEast Asian Time-series Study (SEATS) (2007) (6)
Toward resolving disparate accounts of the extent and magnitude of nitrogen fixation in the Eastern Tropical South Pacific oxygen deficient zone (2021) (6)
A coastal N2 fixation hotspot at the Cape Hatteras front: Elucidating spatial heterogeneity in diazotroph activity via supervised machine learning (2021) (6)
Bioavailability of Organic Nitrogen from Treated Wastewater (2007) (5)
The fate of new production from N 2 fixation (2006) (5)
Utilization of combined forms of N in cultures and natural populations of Trichodesmium spp. (1999) (5)
Effects of tidal flooding on estuarine biogeochemistry: Quantifying flood-driven nitrogen inputs in an urban, lower Chesapeake Bay sub-tributary. (2021) (5)
Understanding controls on Margalefidinium polykrikoides blooms in the lower Chesapeake Bay. (2021) (5)
Dynamics of ammonium biogeochemistry in an oligotrophic regime in the South China Sea (2021) (4)
APPLICATION OF AN OPEN, GIS BASED FLOOD FORECAST SYSTEM TO THE WAIKATO RIVER, NEW ZEALAND (2005) (4)
Nutrient Uptake Kinetics in Two Virginia Estuaries (2002) (3)
Bio-physical Interactions in Ocean Margin Ecosystems (BIOME): understanding coastal dynamics in the Southern Mid-Atlantic Bight (2005) (3)
Peptide hydrolysis and uptake of peptide hydrolysis products in the James River estuary and lower Chesapeake Bay (2017) (3)
Iron and manganese accumulation within the Eastern Tropical North Pacific oxygen deficient zone (2022) (2)
Global distributions of diazotrophs abundance, biomass and nitrogen fixation rates - Gridded data product (NetCDF) - Contribution to the MAREDAT World Ocean Atlas of Plankton Functional Types (2012) (2)
Empirical Relationships Linking Algal Blooms with Threats to Aquatic Life Designated Uses in the James River Estuary (2015) (2)
Storm chasing: Nutrient dynamics in the tidal James River before, during, and after hurricane Irene and Tropical Storm Lee (2012) (2)
Heterotrophic bacteria outcompete diazotrophs for orthophosphate in the Mediterranean Sea (2021) (2)
Imaging Technologies Build Capacity and Accessibility in Phytoplankton Species Identification Expertise for Research and Monitoring: Lessons Learned During the COVID-19 Pandemic (2022) (2)
Preface to Second Edition (2008) (2)
Coastal dispersion conditions near the southwestern tip of Africa: a system for evaluation and prediction. (1988) (2)
Trichome Lengths of the Heterocystous N2-Fixing Cyanobacteria in the Tropical Marginal Seas of the Western North Pacific (2021) (1)
Contribution of dinitrogen fixation to bacterial and primary productivity in the Gulf of Aqaba (Red Sea) (2013) (1)
Cyanate dynamics under algal blooms and sediment resuspension events in a shallow micro-tidal estuary in the lower Chesapeake Bay (2022) (1)
Climate Change and the Chesapeake Bay : State-ofthe-Science Review and Recommendations (2008) (1)
Insights into nitrogen fixation below the euphotic zone: trials in an oligotrophic marginal sea and global compilation (2021) (1)
New Nitrogen Sources in the Gulf of Aqaba, Red Sea; Estimates from DINex (2006) (0)
The Carbon Budget of Coastal Waters of Eastern North America (2015) (0)
Global distributions of diazotrophs abundance, biomass and nitrogen fixation rates - Collection of source datasets - Contribution to the MAREDAT World Ocean Atlas of Plankton Functional Types (2013) (0)
Phycoremediation Strategies for Rapid Nutrient Removal in a Waste Stream (2012) (0)
Anthropogenic impacts on continental margins: New frontiers and engagement arena for global sustainability research and action (2014) (0)
Assessing the Roles of Iron, Macronutrients and Wet deposition in Controlling Phytoplankton Growth in Seasonally Oligotrophic Waters of the Mid-Atlantic Bight (2016) (0)
Water Quality Impairments in the Lower Chesapeake Bay: Hot Spots and Hot Times (2018) (0)
Supplementary material to "Insights into nitrogen fixation below the euphotic zone: trials in an oligotrophic marginal sea and global compilation" (2021) (0)
Biophysical interactions control the progression of harmful algal blooms in Chesapeake Bay: A novel Lagrangian particle tracking model with mixotrophic growth and vertical migration (2023) (0)
Net primary production and nutrient data from R/V Hugh R. Sharp cruise HRS1414 CTD casts in the Mid and South-Atlantic Bight from July to August of 2014 (DANCE project) (2019) (0)
Quantifying the sources and sinks of nitrite in the oxygen minimum zone of the Eastern Tropical South Pacific (2017) (0)
Algal Nutrient Removal During Wastewater Treatment (2015) (0)
Trace-metals from CTD casts and underway water samples collected during the R/V Hugh R. Sharp cruise HRS1414 in the Mid and South-Atlantic Bight in August of 2014 (DANCE project) (2019) (0)
Erratum: Nitrogen fixation and release of fixed nitrogen by Trichodesmium spp. in the Gulf of Mexico (2006) (0)
Nitrogen fixation rate across the Mediterranean Sea (2013) (0)
Deposition of Atmospheric Nitrogen to Coastal Ecosystems (DANCE): A study in seasonally oligotrophic waters off the eastern U.S. (2016) (0)
Mean Annual Fluxes of Carbon in Coastal Ecosystems of Eastern North America (2018) (0)
Nitrogen fixation rate of bacterial and primary productivity in the Gulf of Aqaba (2013) (0)
Diagnostic pigments as a means of tracking the distribution of algal functional groups within the James River (2014) (0)
Water quality impacts from tidal flooding in the northeast coast of the U.S. (2020) (0)
A Novel Anoxic Pathway for Urea and Cyanate in Marine Oxygen Deficient Zones Revealed by Combined Microbiological and Biogeochemical Tools (2016) (0)
Final Report: Nutritional factors promoting algal blooms in the lower Chesapeake Bay (2004) (0)
Understanding Environmental Controls on Cochlodinium polykrikoides Blooms in the Lower Chesapeake Bay (2018) (0)
Glibert et al- MarPollBull3716 (2014) (0)
Patterns in Rhizosolenia- and Guinardia-associated Richelia abundances in the tropical marginal seas of the western North Pacific (2021) (0)
Global distributions of diazotrophs Gamma-A nifH genes abundance - Depth integrated values computed from a collection of source datasets - Contribution to the MAREDAT World Ocean Atlas of Plankton Functional Types (2013) (0)
c0032 Enzymes and N Cycling (2008) (0)
Assessing the Bioavailability of Effluent Organic Nitrogen (EON) Using a Suite of Water Quality-Based Assays (2009) (0)
Dissolved inorganic nitrogen, chlorophyll-a, and primary production from bioassay experiments during the R/V Hugh R. Sharp cruise HRS1414 in the Mid and South-Atlantic Bight in August of 2014 (DANCE project) (2019) (0)
Environmental factors promoting algal blooms in the Lower James River estuary - Year 2 Subtask 1.1 and 1.3 Expand monitoring network & Determine environmental factors favoring algal blooms Data Report (2014) (0)
Nitrite cycling in the primary nitrite maxima of the eastern tropical North Pacific (2023) (0)
Nutrients and iron in shipboard aerosol and rain samples collected during R/V Hugh R. Sharp cruise HRS1414 in the Mid-Atlantic Bight and northern South-Atlantic Bight from July to August of 2014 (DANCE project) (2018) (0)
Empirical Relationships Linking Algal Blooms and Threats to Designated Uses (2016) (0)
A Critical Review of the <sup>15</sup>N<sub>2</sub> Tracer Method to Measure Diazotrophic Production in Pelagic Ecosystems (2020) (0)
Intra- and interannual dynamics of dinoflagellate bloom species in the James River, an urban tidal estuary in Virginia, USA (2016) (0)
The Importance of Winter Dinoflagellate Blooms in Chesapeake Bay—a Missing Link in Bay Productivity (2023) (0)
Water quality impacts from tidal flooding in Southern Chesapeake Bay (2022) (0)

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